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Created January 21, 2026 21:40
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# Solve.mjs Log - 2026-01-21T21:31:14.801Z
[2026-01-21T21:31:14.802Z] [INFO] πŸ“ Log file: /home/hive/solve-2026-01-21T21-31-14-800Z.log
[2026-01-21T21:31:14.803Z] [INFO] (All output will be logged here)
[2026-01-21T21:31:15.324Z] [INFO]
[2026-01-21T21:31:15.325Z] [INFO] πŸš€ solve v1.9.0
[2026-01-21T21:31:15.325Z] [INFO] πŸ”§ Raw command executed:
[2026-01-21T21:31:15.326Z] [INFO] /home/hive/.nvm/versions/node/v20.20.0/bin/node /home/hive/.bun/bin/solve https://github.com/link-assistant/agent/issues/127 --model opus --attach-logs --verbose --no-tool-check --auto-resume-on-limit-reset --tokens-budget-stats
[2026-01-21T21:31:15.326Z] [INFO]
[2026-01-21T21:31:15.344Z] [INFO]
[2026-01-21T21:31:15.345Z] [WARNING] ⚠️ SECURITY WARNING: --attach-logs is ENABLED
[2026-01-21T21:31:15.345Z] [INFO]
[2026-01-21T21:31:15.346Z] [INFO] This option will upload the complete solution draft log file to the Pull Request.
[2026-01-21T21:31:15.346Z] [INFO] The log may contain sensitive information such as:
[2026-01-21T21:31:15.346Z] [INFO] β€’ API keys, tokens, or secrets
[2026-01-21T21:31:15.347Z] [INFO] β€’ File paths and directory structures
[2026-01-21T21:31:15.347Z] [INFO] β€’ Command outputs and error messages
[2026-01-21T21:31:15.347Z] [INFO] β€’ Internal system information
[2026-01-21T21:31:15.348Z] [INFO]
[2026-01-21T21:31:15.348Z] [INFO] ⚠️ DO NOT use this option with public repositories or if the log
[2026-01-21T21:31:15.348Z] [INFO] might contain sensitive data that should not be shared publicly.
[2026-01-21T21:31:15.348Z] [INFO]
[2026-01-21T21:31:15.349Z] [INFO] Continuing in 5 seconds... (Press Ctrl+C to abort)
[2026-01-21T21:31:15.349Z] [INFO]
[2026-01-21T21:31:20.356Z] [INFO]
[2026-01-21T21:31:20.388Z] [INFO] πŸ’Ύ Disk space check: 58512MB available (2048MB required) βœ…
[2026-01-21T21:31:20.390Z] [INFO] 🧠 Memory check: 11488MB available, swap: 4095MB (0MB used), total: 15583MB (256MB required) βœ…
[2026-01-21T21:31:20.415Z] [INFO] ⏩ Skipping tool connection validation (dry-run mode or skip-tool-connection-check enabled)
[2026-01-21T21:31:20.416Z] [INFO] ⏩ Skipping GitHub authentication check (dry-run mode or skip-tool-connection-check enabled)
[2026-01-21T21:31:20.417Z] [INFO] πŸ“‹ URL validation:
[2026-01-21T21:31:20.417Z] [INFO] Input URL: https://github.com/link-assistant/agent/issues/127
[2026-01-21T21:31:20.417Z] [INFO] Is Issue URL: true
[2026-01-21T21:31:20.418Z] [INFO] Is PR URL: false
[2026-01-21T21:31:20.418Z] [INFO] πŸ” Checking repository access for auto-fork...
[2026-01-21T21:31:21.304Z] [INFO] Repository visibility: public
[2026-01-21T21:31:21.304Z] [INFO] βœ… Auto-fork: Write access detected to public repository, working directly on repository
[2026-01-21T21:31:21.305Z] [INFO] πŸ” Checking repository write permissions...
[2026-01-21T21:31:21.779Z] [INFO] βœ… Repository write access: Confirmed
[2026-01-21T21:31:22.147Z] [INFO] Repository visibility: public
[2026-01-21T21:31:22.147Z] [INFO] Auto-cleanup default: false (repository is public)
[2026-01-21T21:31:22.148Z] [INFO] πŸ” Auto-continue enabled: Checking for existing PRs for issue #127...
[2026-01-21T21:31:22.149Z] [INFO] πŸ” Checking for existing branches in link-assistant/agent...
[2026-01-21T21:31:23.035Z] [INFO] πŸ“‹ Found 4 existing PR(s) linked to issue #127
[2026-01-21T21:31:23.036Z] [INFO] PR #103: created 670h ago (OPEN, ready)
[2026-01-21T21:31:23.038Z] [INFO] PR #103: Branch 'issue-102-6e0a44052594' doesn't match expected pattern 'issue-127-*' - skipping
[2026-01-21T21:31:23.040Z] [INFO] PR #80: created 779h ago (OPEN, ready)
[2026-01-21T21:31:23.040Z] [INFO] PR #80: Branch 'issue-77-677ebcec7a83' doesn't match expected pattern 'issue-127-*' - skipping
[2026-01-21T21:31:23.041Z] [INFO] PR #25: created 1048h ago (OPEN, ready)
[2026-01-21T21:31:23.041Z] [INFO] PR #25: Branch 'issue-24-9e1c4ee0ed15' doesn't match expected pattern 'issue-127-*' - skipping
[2026-01-21T21:31:23.041Z] [INFO] PR #13: created 1225h ago (OPEN, ready)
[2026-01-21T21:31:23.042Z] [INFO] PR #13: Branch 'issue-6-097eb11195ee' doesn't match expected pattern 'issue-127-*' - skipping
[2026-01-21T21:31:23.042Z] [INFO] ⏭️ No suitable PRs found (missing CLAUDE.md/.gitkeep or older than 24h) - creating new PR as usual
[2026-01-21T21:31:23.043Z] [INFO] πŸ“ Issue mode: Working with issue #127
[2026-01-21T21:31:23.044Z] [INFO]
Creating temporary directory: /tmp/gh-issue-solver-1769031083044
[2026-01-21T21:31:23.048Z] [INFO]
πŸ“₯ Cloning repository: link-assistant/agent
[2026-01-21T21:31:24.161Z] [INFO] βœ… Cloned to: /tmp/gh-issue-solver-1769031083044
[2026-01-21T21:31:24.334Z] [INFO]
πŸ“Œ Default branch: main
[2026-01-21T21:31:24.408Z] [INFO]
🌿 Creating branch: issue-127-8d957d9dd1ee from main (default)
[2026-01-21T21:31:24.478Z] [INFO] πŸ” Verifying: Branch creation...
[2026-01-21T21:31:24.522Z] [INFO] βœ… Branch created: issue-127-8d957d9dd1ee
[2026-01-21T21:31:24.523Z] [INFO] βœ… Current branch: issue-127-8d957d9dd1ee
[2026-01-21T21:31:24.524Z] [INFO] Branch operation: Create new branch
[2026-01-21T21:31:24.525Z] [INFO] Branch verification: Matches expected
[2026-01-21T21:31:24.528Z] [INFO]
πŸš€ Auto PR creation: ENABLED
[2026-01-21T21:31:24.529Z] [INFO] Creating: Initial commit and draft PR...
[2026-01-21T21:31:24.529Z] [INFO]
[2026-01-21T21:31:24.574Z] [INFO] Using CLAUDE.md mode (--claude-file=true, --gitkeep-file=false, --auto-gitkeep-file=true)
[2026-01-21T21:31:24.575Z] [INFO] πŸ“ Creating: CLAUDE.md with task details
[2026-01-21T21:31:24.576Z] [INFO] Issue URL from argv['issue-url']: https://github.com/link-assistant/agent/issues/127
[2026-01-21T21:31:24.576Z] [INFO] Issue URL from argv._[0]: undefined
[2026-01-21T21:31:24.577Z] [INFO] Final issue URL: https://github.com/link-assistant/agent/issues/127
[2026-01-21T21:31:24.577Z] [INFO] βœ… File created: CLAUDE.md
[2026-01-21T21:31:24.577Z] [INFO] πŸ“¦ Adding file: To git staging
[2026-01-21T21:31:24.707Z] [INFO] Git status after add: A CLAUDE.md
[2026-01-21T21:31:24.707Z] [INFO] πŸ“ Creating commit: With CLAUDE.md file
[2026-01-21T21:31:24.771Z] [INFO] βœ… Commit created: Successfully with CLAUDE.md
[2026-01-21T21:31:24.772Z] [INFO] Commit output: [issue-127-8d957d9dd1ee 610719f] Initial commit with task details
1 file changed, 5 insertions(+)
create mode 100644 CLAUDE.md
[2026-01-21T21:31:24.810Z] [INFO] Commit hash: 610719f...
[2026-01-21T21:31:24.848Z] [INFO] Latest commit: 610719f Initial commit with task details
[2026-01-21T21:31:24.907Z] [INFO] Git status: clean
[2026-01-21T21:31:24.947Z] [INFO] Remotes: origin https://github.com/link-assistant/agent.git (fetch)
[2026-01-21T21:31:24.986Z] [INFO] Branch info: * issue-127-8d957d9dd1ee 610719f [origin/main: ahead 1] Initial commit with task details
main 555d3b5 [origin/main] 0.8.6
[2026-01-21T21:31:24.986Z] [INFO] πŸ“€ Pushing branch: To remote repository...
[2026-01-21T21:31:24.987Z] [INFO] Push command: git push -u origin issue-127-8d957d9dd1ee
[2026-01-21T21:31:25.840Z] [INFO] Push exit code: 0
[2026-01-21T21:31:25.841Z] [INFO] Push output: remote:
remote: Create a pull request for 'issue-127-8d957d9dd1ee' on GitHub by visiting:
remote: https://github.com/link-assistant/agent/pull/new/issue-127-8d957d9dd1ee
remote:
To https://github.com/link-assistant/agent.git
* [new branch] issue-127-8d957d9dd1ee -> issue-127-8d957d9dd1ee
branch 'issue-127-8d957d9dd1ee' set up to track 'origin/issue-127-8d957d9dd1ee'.
[2026-01-21T21:31:25.842Z] [INFO] βœ… Branch pushed: Successfully to remote
[2026-01-21T21:31:25.842Z] [INFO] Push output: remote:
remote: Create a pull request for 'issue-127-8d957d9dd1ee' on GitHub by visiting:
remote: https://github.com/link-assistant/agent/pull/new/issue-127-8d957d9dd1ee
remote:
To https://github.com/link-assistant/agent.git
* [new branch] issue-127-8d957d9dd1ee -> issue-127-8d957d9dd1ee
branch 'issue-127-8d957d9dd1ee' set up to track 'origin/issue-127-8d957d9dd1ee'.
[2026-01-21T21:31:25.843Z] [INFO] Waiting for GitHub to sync...
[2026-01-21T21:31:28.558Z] [INFO] Compare API check: 1 commit(s) ahead of main
[2026-01-21T21:31:28.559Z] [INFO] GitHub compare API ready: 1 commit(s) found
[2026-01-21T21:31:28.880Z] [INFO] Branch verified on GitHub: issue-127-8d957d9dd1ee
[2026-01-21T21:31:29.188Z] [INFO] Remote commit SHA: 610719f...
[2026-01-21T21:31:29.189Z] [INFO] πŸ“‹ Getting issue: Title from GitHub...
[2026-01-21T21:31:29.530Z] [INFO] Issue title: "Cannot convert undefined to number: toNumber error - returning NaN"
[2026-01-21T21:31:29.530Z] [INFO] πŸ‘€ Getting user: Current GitHub account...
[2026-01-21T21:31:30.053Z] [INFO] Current user: konard
[2026-01-21T21:31:30.348Z] [INFO] User has collaborator access
[2026-01-21T21:31:30.349Z] [INFO] User has collaborator access
[2026-01-21T21:31:30.350Z] [INFO] πŸ”„ Fetching: Latest main branch...
[2026-01-21T21:31:30.682Z] [INFO] βœ… Base updated: Fetched latest main
[2026-01-21T21:31:30.683Z] [INFO] πŸ” Checking: Commits between branches...
[2026-01-21T21:31:30.723Z] [INFO] Commits ahead of origin/main: 1
[2026-01-21T21:31:30.724Z] [INFO] βœ… Commits found: 1 commit(s) ahead
[2026-01-21T21:31:30.724Z] [INFO] πŸ”€ Creating PR: Draft pull request...
[2026-01-21T21:31:30.724Z] [INFO] 🎯 Target branch: main (default)
[2026-01-21T21:31:30.725Z] [INFO] PR Title: [WIP] Cannot convert undefined to number: toNumber error - returning NaN
[2026-01-21T21:31:30.725Z] [INFO] Base branch: main
[2026-01-21T21:31:30.725Z] [INFO] Head branch: issue-127-8d957d9dd1ee
[2026-01-21T21:31:30.725Z] [INFO] Assignee: konard
[2026-01-21T21:31:30.725Z] [INFO] PR Body:
## πŸ€– AI-Powered Solution Draft
This pull request is being automatically generated to solve issue #127.
### πŸ“‹ Issue Reference
Fixes #127
### 🚧 Status
**Work in Progress** - The AI assistant is currently analyzing and implementing the solution draft.
### πŸ“ Implementation Details
_Details will be added as the solution draft is developed..._
---
*This PR was created automatically by the AI issue solver*
[2026-01-21T21:31:30.727Z] [INFO] Command: cd "/tmp/gh-issue-solver-1769031083044" && gh pr create --draft --title "$(cat '/tmp/pr-title-1769031090727.txt')" --body-file "/tmp/pr-body-1769031090726.md" --base main --head issue-127-8d957d9dd1ee --assignee konard
[2026-01-21T21:31:33.765Z] [INFO] πŸ” Verifying: PR creation...
[2026-01-21T21:31:34.161Z] [INFO] βœ… Verification: PR exists on GitHub
[2026-01-21T21:31:34.162Z] [INFO] βœ… PR created: #128
[2026-01-21T21:31:34.163Z] [INFO] πŸ“ PR URL: https://github.com/link-assistant/agent/pull/128
[2026-01-21T21:31:34.163Z] [INFO] πŸ‘€ Assigned to: konard
[2026-01-21T21:31:34.163Z] [INFO] πŸ”— Linking: Issue #127 to PR #128...
[2026-01-21T21:31:34.531Z] [INFO] Issue node ID: I_kwDOQYTy3M7k3ArP
[2026-01-21T21:31:34.881Z] [INFO] PR node ID: PR_kwDOQYTy3M6-jMv9
[2026-01-21T21:31:35.278Z] [INFO]
[2026-01-21T21:31:35.279Z] [WARNING] ⚠️ ISSUE LINK MISSING: PR not linked to issue
[2026-01-21T21:31:35.279Z] [INFO]
[2026-01-21T21:31:35.280Z] [WARNING] The PR wasn't linked to issue #127
[2026-01-21T21:31:35.280Z] [WARNING] Expected: "Fixes #127" in PR body
[2026-01-21T21:31:35.280Z] [INFO]
[2026-01-21T21:31:35.281Z] [WARNING] To fix manually:
[2026-01-21T21:31:35.281Z] [WARNING] 1. Edit the PR description at: https://github.com/link-assistant/agent/pull/128
[2026-01-21T21:31:35.281Z] [WARNING] 2. Ensure it contains: Fixes #127
[2026-01-21T21:31:35.281Z] [INFO]
[2026-01-21T21:31:35.579Z] [INFO] πŸ‘€ Current user: konard
[2026-01-21T21:31:35.580Z] [INFO]
πŸ“Š Comment counting conditions:
[2026-01-21T21:31:35.580Z] [INFO] prNumber: 128
[2026-01-21T21:31:35.580Z] [INFO] branchName: issue-127-8d957d9dd1ee
[2026-01-21T21:31:35.581Z] [INFO] isContinueMode: false
[2026-01-21T21:31:35.581Z] [INFO] Will count comments: true
[2026-01-21T21:31:35.581Z] [INFO] πŸ’¬ Counting comments: Checking for new comments since last commit...
[2026-01-21T21:31:35.581Z] [INFO] PR #128 on branch: issue-127-8d957d9dd1ee
[2026-01-21T21:31:35.582Z] [INFO] Owner/Repo: link-assistant/agent
[2026-01-21T21:31:36.203Z] [INFO] πŸ“… Last commit time (from API): 2026-01-21T21:31:24.000Z
[2026-01-21T21:31:37.581Z] [INFO] πŸ’¬ New PR comments: 0
[2026-01-21T21:31:37.582Z] [INFO] πŸ’¬ New PR review comments: 0
[2026-01-21T21:31:37.583Z] [INFO] πŸ’¬ New issue comments: 0
[2026-01-21T21:31:37.583Z] [INFO] Total new comments: 0
[2026-01-21T21:31:37.583Z] [INFO] Comment lines to add: No (saving tokens)
[2026-01-21T21:31:37.584Z] [INFO] PR review comments fetched: 0
[2026-01-21T21:31:37.584Z] [INFO] PR conversation comments fetched: 0
[2026-01-21T21:31:37.584Z] [INFO] Total PR comments checked: 0
[2026-01-21T21:31:40.588Z] [INFO] Feedback info will be added to prompt:
[2026-01-21T21:31:40.589Z] [INFO] - Pull request description was edited after last commit
[2026-01-21T21:31:40.589Z] [INFO] πŸ“… Getting timestamps: From GitHub servers...
[2026-01-21T21:31:40.956Z] [INFO] πŸ“ Issue updated: 2026-01-21T19:03:14.000Z
[2026-01-21T21:31:41.271Z] [INFO] πŸ’¬ Comments: None found
[2026-01-21T21:31:41.710Z] [INFO] πŸ”€ Recent PR: 2026-01-21T21:31:32.000Z
[2026-01-21T21:31:41.711Z] [INFO]
βœ… Reference time: 2026-01-21T21:31:32.000Z
[2026-01-21T21:31:41.712Z] [INFO]
πŸ” Checking for uncommitted changes to include as feedback...
[2026-01-21T21:31:41.781Z] [INFO] βœ… No uncommitted changes found
[2026-01-21T21:31:44.661Z] [INFO] 🎭 Playwright MCP detected - enabling browser automation hints
[2026-01-21T21:31:44.667Z] [INFO]
πŸ“ Final prompt structure:
[2026-01-21T21:31:44.668Z] [INFO] Characters: 267
[2026-01-21T21:31:44.668Z] [INFO] System prompt characters: 11865
[2026-01-21T21:31:44.669Z] [INFO] Feedback info: Included
[2026-01-21T21:31:44.671Z] [INFO]
πŸ€– Executing Claude: OPUS
[2026-01-21T21:31:44.671Z] [INFO] Model: opus
[2026-01-21T21:31:44.672Z] [INFO] Working directory: /tmp/gh-issue-solver-1769031083044
[2026-01-21T21:31:44.673Z] [INFO] Branch: issue-127-8d957d9dd1ee
[2026-01-21T21:31:44.673Z] [INFO] Prompt length: 267 chars
[2026-01-21T21:31:44.673Z] [INFO] System prompt length: 11865 chars
[2026-01-21T21:31:44.673Z] [INFO] Feedback info included: Yes (1 lines)
[2026-01-21T21:31:44.726Z] [INFO] πŸ“ˆ System resources before execution:
[2026-01-21T21:31:44.727Z] [INFO] Memory: MemFree: 10946576 kB
[2026-01-21T21:31:44.727Z] [INFO] Load: 0.08 0.04 0.08 1/214 36208
[2026-01-21T21:31:44.728Z] [INFO]
πŸ“ Raw command:
[2026-01-21T21:31:44.728Z] [INFO] (cd "/tmp/gh-issue-solver-1769031083044" && claude --output-format stream-json --verbose --dangerously-skip-permissions --model claude-opus-4-5-20251101 -p "Issue to solve: https://github.com/link-assistant/agent/issues/127
Your prepared branch: issue-127-8d957d9dd1ee
Your prepared working directory: /tmp/gh-issue-solver-1769031083044
Your prepared Pull Request: https://github.com/link-assistant/agent/pull/128
Proceed.
" --append-system-prompt "You are an AI issue solver. You prefer to find the root cause of each and every issue. When you talk, you prefer to speak with facts which you have double-checked yourself or cite sources that provide evidence, like quote actual code or give references to documents or pages found on the internet. You are polite and patient, and prefer to assume good intent, trying your best to be helpful. If you are unsure or have assumptions, you prefer to test them yourself or ask questions to clarify requirements.
General guidelines.
- When you execute commands, always save their logs to files for easier reading if the output becomes large.
- When running commands, do not set a timeout yourself β€” let them run as long as needed (default timeout - 2 minutes is more than enough), and once they finish, review the logs in the file.
- When running sudo commands (especially package installations like apt-get, yum, npm install, etc.), always run them in the background to avoid timeout issues and permission errors when the process needs to be killed. Use the run_in_background parameter or append & to the command.
- When CI is failing or user reports failures, consider adding a detailed investigation protocol to your todo list with these steps:
Step 1: List recent runs with timestamps using: gh run list --repo link-assistant/agent --branch issue-127-8d957d9dd1ee --limit 5 --json databaseId,conclusion,createdAt,headSha
Step 2: Verify runs are after the latest commit by checking timestamps and SHA
Step 3: For each non-passing run, download logs to preserve them: gh run view {run-id} --repo link-assistant/agent --log > ci-logs/{workflow}-{run-id}.log
Step 4: Read each downloaded log file using Read tool to understand the actual failures
Step 5: Report findings with specific errors and line numbers from logs
This detailed investigation is especially helpful when user mentions CI failures, asks to investigate logs, you see non-passing status, or when finalizing a PR.
Note: If user says \"failing\" but tools show \"passing\", this might indicate stale data - consider downloading fresh logs and checking timestamps to resolve the discrepancy.
- When a code or log file has more than 1500 lines, read it in chunks of 1500 lines.
- When facing a complex problem, do as much tracing as possible and turn on all verbose modes.
- When you create debug, test, or example/experiment scripts for fixing, always keep them in an examples and/or experiments folders so you can reuse them later.
- When testing your assumptions, use the experiment scripts, and add it to experiments folder.
- When your experiments can show real world use case of the software, add it to examples folder.
- When you face something extremely hard, use divide and conquer β€” it always helps.
Initial research.
- When you start, make sure you create detailed plan for yourself and follow your todo list step by step, make sure that as many points from these guidelines are added to your todo list to keep track of everything that can help you solve the issue with highest possible quality.
- When user mentions CI failures or asks to investigate logs, consider adding these todos to track the investigation: (1) List recent CI runs with timestamps, (2) Download logs from failed runs to ci-logs/ directory, (3) Analyze error messages and identify root cause, (4) Implement fix, (5) Verify fix resolves the specific errors found in logs.
- When you read issue, read all details and comments thoroughly.
- When you see screenshots or images in issue descriptions, pull request descriptions, comments, or discussions, use WebFetch tool (or fetch tool) to download the image first, then use Read tool to view and analyze it. IMPORTANT: Before reading downloaded images with the Read tool, verify the file is a valid image (not HTML). Use a CLI tool like 'file' command to check the actual file format. Reading corrupted or non-image files (like GitHub's HTML 404 pages saved as .png) can cause \"Could not process image\" errors and may crash the AI solver process. If the file command shows \"HTML\" or \"text\", the download failed and you should retry or skip the image.
- When you need issue details, use gh issue view https://github.com/link-assistant/agent/issues/127.
- When you need related code, use gh search code --owner link-assistant [keywords].
- When you need repo context, read files in your working directory.
- When you study related work, study the most recent related pull requests.
- When issue is not defined enough, write a comment to ask clarifying questions.
- When accessing GitHub Gists (especially private ones), use gh gist view command instead of direct URL fetching to ensure proper authentication.
- When you are fixing a bug, please make sure you first find the actual root cause, do as many experiments as needed.
- When you are fixing a bug and code does not have enough tracing/logs, add them and make sure they stay in the code, but are switched off by default.
- When you need comments on a pull request, note that GitHub has THREE different comment types with different API endpoints:
1. PR review comments (inline code comments): gh api repos/link-assistant/agent/pulls/128/comments --paginate
2. PR conversation comments (general discussion): gh api repos/link-assistant/agent/issues/128/comments --paginate
3. PR reviews (approve/request changes): gh api repos/link-assistant/agent/pulls/128/reviews --paginate
IMPORTANT: The command \"gh pr view --json comments\" ONLY returns conversation comments and misses review comments!
- When you need latest comments on issue, use gh api repos/link-assistant/agent/issues/127/comments --paginate.
Solution development and testing.
- When issue is solvable, implement code with tests.
- When implementing features, search for similar existing implementations in the codebase and use them as examples instead of implementing everything from scratch.
- When coding, each atomic step that can be useful by itself should be commited to the pull request's branch, meaning if work will be interrupted by any reason parts of solution will still be kept intact and safe in pull request.
- When you test:
start from testing of small functions using separate scripts;
write unit tests with mocks for easy and quick start.
- When you test integrations, use existing framework.
- When you test solution draft, include automated checks in pr.
- When issue is unclear, write comment on issue asking questions.
- When you encounter any problems that you unable to solve yourself (any human feedback or help), write a comment to the pull request asking for help.
- When you need human help, use gh pr comment 128 --body \"your message\" to comment on existing PR.
Preparing pull request.
- When you code, follow contributing guidelines.
- When you commit, write clear message.
- When you need examples of style, use gh pr list --repo link-assistant/agent --state merged --search [keywords].
- When you open pr, describe solution draft and include tests.
- When there is a package with version and GitHub Actions workflows for automatic release, update the version (or other necessary release trigger) in your pull request to prepare for next release.
- When you update existing pr 128, use gh pr edit to modify title and description.
- When you are about to commit or push code, ALWAYS run local CI checks first if they are available in contributing guidelines (like ruff check, mypy, eslint, etc.) to catch errors before pushing.
- When you finalize the pull request:
follow style from merged prs for code, title, and description,
make sure no uncommitted changes corresponding to the original requirements are left behind,
make sure the default branch is merged to the pull request's branch,
make sure all CI checks passing if they exist before you finish,
check for latest comments on the issue and pull request to ensure no recent feedback was missed,
double-check that all changes in the pull request answer to original requirements of the issue,
make sure no new new bugs are introduced in pull request by carefully reading gh pr diff,
make sure no previously existing features were removed without an explicit request from users via the issue description, issue comments, and/or pull request comments.
- When you finish implementation, use gh pr ready 128.
Workflow and collaboration.
- When you check branch, verify with git branch --show-current.
- When you push, push only to branch issue-127-8d957d9dd1ee.
- When you finish, create a pull request from branch issue-127-8d957d9dd1ee. (Note: PR 128 already exists, update it instead)
- When you organize workflow, use pull requests instead of direct merges to default branch (main or master).
- When you manage commits, preserve commit history for later analysis.
- When you contribute, keep repository history forward-moving with regular commits, pushes, and reverts if needed.
- When you face conflict that you cannot resolve yourself, ask for help.
- When you collaborate, respect branch protections by working only on issue-127-8d957d9dd1ee.
- When you mention result, include pull request url or comment url.
- When you need to create pr, remember pr 128 already exists for this branch.
Self review.
- When you check your solution draft, run all tests locally.
- When you check your solution draft, verify git status shows a clean working tree with no uncommitted changes.
- When you compare with repo style, use gh pr diff [number].
- When you finalize, confirm code, tests, and description are consistent.
GitHub CLI command patterns.
- IMPORTANT: Always use --paginate flag when fetching lists from GitHub API to ensure all results are returned (GitHub returns max 30 per page by default).
- When listing PR review comments (inline code comments), use gh api repos/OWNER/REPO/pulls/NUMBER/comments --paginate.
- When listing PR conversation comments, use gh api repos/OWNER/REPO/issues/NUMBER/comments --paginate.
- When listing PR reviews, use gh api repos/OWNER/REPO/pulls/NUMBER/reviews --paginate.
- When listing issue comments, use gh api repos/OWNER/REPO/issues/NUMBER/comments --paginate.
- When adding PR comment, use gh pr comment NUMBER --body \"text\" --repo OWNER/REPO.
- When adding issue comment, use gh issue comment NUMBER --body \"text\" --repo OWNER/REPO.
- When viewing PR details, use gh pr view NUMBER --repo OWNER/REPO.
- When filtering with jq, use gh api repos/\${owner}/\${repo}/pulls/\${prNumber}/comments --paginate --jq 'reverse | .[0:5]'.
Playwright MCP usage (browser automation via mcp__playwright__* tools).
- When you develop frontend web applications (HTML, CSS, JavaScript, React, Vue, Angular, etc.), use Playwright MCP tools to test the UI in a real browser.
- When WebFetch tool fails to retrieve expected content (e.g., returns empty content, JavaScript-rendered pages, or login-protected pages), use Playwright MCP tools (browser_navigate, browser_snapshot) as a fallback for web browsing.
- When you need to interact with dynamic web pages that require JavaScript execution, use Playwright MCP tools.
- When you need to visually verify how a web page looks or take screenshots, use browser_take_screenshot from Playwright MCP.
- When you need to fill forms, click buttons, or perform user interactions on web pages, use Playwright MCP tools (browser_click, browser_type, browser_fill_form).
- When you need to test responsive design or different viewport sizes, use browser_resize from Playwright MCP.
- When you finish using the browser, always close it with browser_close to free resources." | jq -c .)
[2026-01-21T21:31:44.728Z] [INFO]
[2026-01-21T21:31:44.729Z] [INFO] πŸ“‹ User prompt:
[2026-01-21T21:31:44.729Z] [INFO] ---BEGIN USER PROMPT---
[2026-01-21T21:31:44.729Z] [INFO] Issue to solve: https://github.com/link-assistant/agent/issues/127
Your prepared branch: issue-127-8d957d9dd1ee
Your prepared working directory: /tmp/gh-issue-solver-1769031083044
Your prepared Pull Request: https://github.com/link-assistant/agent/pull/128
Proceed.
[2026-01-21T21:31:44.729Z] [INFO] ---END USER PROMPT---
[2026-01-21T21:31:44.730Z] [INFO]
[2026-01-21T21:31:44.730Z] [INFO] πŸ“‹ System prompt:
[2026-01-21T21:31:44.730Z] [INFO] ---BEGIN SYSTEM PROMPT---
[2026-01-21T21:31:44.730Z] [INFO] You are an AI issue solver. You prefer to find the root cause of each and every issue. When you talk, you prefer to speak with facts which you have double-checked yourself or cite sources that provide evidence, like quote actual code or give references to documents or pages found on the internet. You are polite and patient, and prefer to assume good intent, trying your best to be helpful. If you are unsure or have assumptions, you prefer to test them yourself or ask questions to clarify requirements.
General guidelines.
- When you execute commands, always save their logs to files for easier reading if the output becomes large.
- When running commands, do not set a timeout yourself β€” let them run as long as needed (default timeout - 2 minutes is more than enough), and once they finish, review the logs in the file.
- When running sudo commands (especially package installations like apt-get, yum, npm install, etc.), always run them in the background to avoid timeout issues and permission errors when the process needs to be killed. Use the run_in_background parameter or append & to the command.
- When CI is failing or user reports failures, consider adding a detailed investigation protocol to your todo list with these steps:
Step 1: List recent runs with timestamps using: gh run list --repo link-assistant/agent --branch issue-127-8d957d9dd1ee --limit 5 --json databaseId,conclusion,createdAt,headSha
Step 2: Verify runs are after the latest commit by checking timestamps and SHA
Step 3: For each non-passing run, download logs to preserve them: gh run view {run-id} --repo link-assistant/agent --log > ci-logs/{workflow}-{run-id}.log
Step 4: Read each downloaded log file using Read tool to understand the actual failures
Step 5: Report findings with specific errors and line numbers from logs
This detailed investigation is especially helpful when user mentions CI failures, asks to investigate logs, you see non-passing status, or when finalizing a PR.
Note: If user says "failing" but tools show "passing", this might indicate stale data - consider downloading fresh logs and checking timestamps to resolve the discrepancy.
- When a code or log file has more than 1500 lines, read it in chunks of 1500 lines.
- When facing a complex problem, do as much tracing as possible and turn on all verbose modes.
- When you create debug, test, or example/experiment scripts for fixing, always keep them in an examples and/or experiments folders so you can reuse them later.
- When testing your assumptions, use the experiment scripts, and add it to experiments folder.
- When your experiments can show real world use case of the software, add it to examples folder.
- When you face something extremely hard, use divide and conquer β€” it always helps.
Initial research.
- When you start, make sure you create detailed plan for yourself and follow your todo list step by step, make sure that as many points from these guidelines are added to your todo list to keep track of everything that can help you solve the issue with highest possible quality.
- When user mentions CI failures or asks to investigate logs, consider adding these todos to track the investigation: (1) List recent CI runs with timestamps, (2) Download logs from failed runs to ci-logs/ directory, (3) Analyze error messages and identify root cause, (4) Implement fix, (5) Verify fix resolves the specific errors found in logs.
- When you read issue, read all details and comments thoroughly.
- When you see screenshots or images in issue descriptions, pull request descriptions, comments, or discussions, use WebFetch tool (or fetch tool) to download the image first, then use Read tool to view and analyze it. IMPORTANT: Before reading downloaded images with the Read tool, verify the file is a valid image (not HTML). Use a CLI tool like 'file' command to check the actual file format. Reading corrupted or non-image files (like GitHub's HTML 404 pages saved as .png) can cause "Could not process image" errors and may crash the AI solver process. If the file command shows "HTML" or "text", the download failed and you should retry or skip the image.
- When you need issue details, use gh issue view https://github.com/link-assistant/agent/issues/127.
- When you need related code, use gh search code --owner link-assistant [keywords].
- When you need repo context, read files in your working directory.
- When you study related work, study the most recent related pull requests.
- When issue is not defined enough, write a comment to ask clarifying questions.
- When accessing GitHub Gists (especially private ones), use gh gist view command instead of direct URL fetching to ensure proper authentication.
- When you are fixing a bug, please make sure you first find the actual root cause, do as many experiments as needed.
- When you are fixing a bug and code does not have enough tracing/logs, add them and make sure they stay in the code, but are switched off by default.
- When you need comments on a pull request, note that GitHub has THREE different comment types with different API endpoints:
1. PR review comments (inline code comments): gh api repos/link-assistant/agent/pulls/128/comments --paginate
2. PR conversation comments (general discussion): gh api repos/link-assistant/agent/issues/128/comments --paginate
3. PR reviews (approve/request changes): gh api repos/link-assistant/agent/pulls/128/reviews --paginate
IMPORTANT: The command "gh pr view --json comments" ONLY returns conversation comments and misses review comments!
- When you need latest comments on issue, use gh api repos/link-assistant/agent/issues/127/comments --paginate.
Solution development and testing.
- When issue is solvable, implement code with tests.
- When implementing features, search for similar existing implementations in the codebase and use them as examples instead of implementing everything from scratch.
- When coding, each atomic step that can be useful by itself should be commited to the pull request's branch, meaning if work will be interrupted by any reason parts of solution will still be kept intact and safe in pull request.
- When you test:
start from testing of small functions using separate scripts;
write unit tests with mocks for easy and quick start.
- When you test integrations, use existing framework.
- When you test solution draft, include automated checks in pr.
- When issue is unclear, write comment on issue asking questions.
- When you encounter any problems that you unable to solve yourself (any human feedback or help), write a comment to the pull request asking for help.
- When you need human help, use gh pr comment 128 --body "your message" to comment on existing PR.
Preparing pull request.
- When you code, follow contributing guidelines.
- When you commit, write clear message.
- When you need examples of style, use gh pr list --repo link-assistant/agent --state merged --search [keywords].
- When you open pr, describe solution draft and include tests.
- When there is a package with version and GitHub Actions workflows for automatic release, update the version (or other necessary release trigger) in your pull request to prepare for next release.
- When you update existing pr 128, use gh pr edit to modify title and description.
- When you are about to commit or push code, ALWAYS run local CI checks first if they are available in contributing guidelines (like ruff check, mypy, eslint, etc.) to catch errors before pushing.
- When you finalize the pull request:
follow style from merged prs for code, title, and description,
make sure no uncommitted changes corresponding to the original requirements are left behind,
make sure the default branch is merged to the pull request's branch,
make sure all CI checks passing if they exist before you finish,
check for latest comments on the issue and pull request to ensure no recent feedback was missed,
double-check that all changes in the pull request answer to original requirements of the issue,
make sure no new new bugs are introduced in pull request by carefully reading gh pr diff,
make sure no previously existing features were removed without an explicit request from users via the issue description, issue comments, and/or pull request comments.
- When you finish implementation, use gh pr ready 128.
Workflow and collaboration.
- When you check branch, verify with git branch --show-current.
- When you push, push only to branch issue-127-8d957d9dd1ee.
- When you finish, create a pull request from branch issue-127-8d957d9dd1ee. (Note: PR 128 already exists, update it instead)
- When you organize workflow, use pull requests instead of direct merges to default branch (main or master).
- When you manage commits, preserve commit history for later analysis.
- When you contribute, keep repository history forward-moving with regular commits, pushes, and reverts if needed.
- When you face conflict that you cannot resolve yourself, ask for help.
- When you collaborate, respect branch protections by working only on issue-127-8d957d9dd1ee.
- When you mention result, include pull request url or comment url.
- When you need to create pr, remember pr 128 already exists for this branch.
Self review.
- When you check your solution draft, run all tests locally.
- When you check your solution draft, verify git status shows a clean working tree with no uncommitted changes.
- When you compare with repo style, use gh pr diff [number].
- When you finalize, confirm code, tests, and description are consistent.
GitHub CLI command patterns.
- IMPORTANT: Always use --paginate flag when fetching lists from GitHub API to ensure all results are returned (GitHub returns max 30 per page by default).
- When listing PR review comments (inline code comments), use gh api repos/OWNER/REPO/pulls/NUMBER/comments --paginate.
- When listing PR conversation comments, use gh api repos/OWNER/REPO/issues/NUMBER/comments --paginate.
- When listing PR reviews, use gh api repos/OWNER/REPO/pulls/NUMBER/reviews --paginate.
- When listing issue comments, use gh api repos/OWNER/REPO/issues/NUMBER/comments --paginate.
- When adding PR comment, use gh pr comment NUMBER --body "text" --repo OWNER/REPO.
- When adding issue comment, use gh issue comment NUMBER --body "text" --repo OWNER/REPO.
- When viewing PR details, use gh pr view NUMBER --repo OWNER/REPO.
- When filtering with jq, use gh api repos/${owner}/${repo}/pulls/${prNumber}/comments --paginate --jq 'reverse | .[0:5]'.
Playwright MCP usage (browser automation via mcp__playwright__* tools).
- When you develop frontend web applications (HTML, CSS, JavaScript, React, Vue, Angular, etc.), use Playwright MCP tools to test the UI in a real browser.
- When WebFetch tool fails to retrieve expected content (e.g., returns empty content, JavaScript-rendered pages, or login-protected pages), use Playwright MCP tools (browser_navigate, browser_snapshot) as a fallback for web browsing.
- When you need to interact with dynamic web pages that require JavaScript execution, use Playwright MCP tools.
- When you need to visually verify how a web page looks or take screenshots, use browser_take_screenshot from Playwright MCP.
- When you need to fill forms, click buttons, or perform user interactions on web pages, use Playwright MCP tools (browser_click, browser_type, browser_fill_form).
- When you need to test responsive design or different viewport sizes, use browser_resize from Playwright MCP.
- When you finish using the browser, always close it with browser_close to free resources.
[2026-01-21T21:31:44.731Z] [INFO] ---END SYSTEM PROMPT---
[2026-01-21T21:31:44.731Z] [INFO]
[2026-01-21T21:31:44.732Z] [INFO] πŸ“Š CLAUDE_CODE_MAX_OUTPUT_TOKENS: 64000
[2026-01-21T21:31:44.733Z] [INFO] πŸ“‹ Command details:
[2026-01-21T21:31:44.734Z] [INFO] πŸ“‚ Working directory: /tmp/gh-issue-solver-1769031083044
[2026-01-21T21:31:44.734Z] [INFO] 🌿 Branch: issue-127-8d957d9dd1ee
[2026-01-21T21:31:44.734Z] [INFO] πŸ€– Model: Claude OPUS
[2026-01-21T21:31:44.734Z] [INFO]
▢️ Streaming output:
[2026-01-21T21:31:47.214Z] [INFO] {
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"tools": [
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"mcp__playwright__browser_file_upload",
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"mcp__playwright__browser_install",
"mcp__playwright__browser_press_key",
"mcp__playwright__browser_type",
"mcp__playwright__browser_navigate",
"mcp__playwright__browser_navigate_back",
"mcp__playwright__browser_network_requests",
"mcp__playwright__browser_run_code",
"mcp__playwright__browser_take_screenshot",
"mcp__playwright__browser_snapshot",
"mcp__playwright__browser_click",
"mcp__playwright__browser_drag",
"mcp__playwright__browser_hover",
"mcp__playwright__browser_select_option",
"mcp__playwright__browser_tabs",
"mcp__playwright__browser_wait_for"
],
"mcp_servers": [
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[2026-01-21T21:31:47.215Z] [INFO] πŸ“Œ Session ID: 550af937-3a6e-4e2d-b006-ae2e73646e47
[2026-01-21T21:31:47.216Z] [INFO] πŸ“ Log renamed to: /home/hive/550af937-3a6e-4e2d-b006-ae2e73646e47.log
[2026-01-21T21:31:50.212Z] [INFO] {
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[2026-01-21T21:31:50.950Z] [INFO] {
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[2026-01-21T21:32:01.036Z] [INFO] ⚠️ [BashTool] Pre-flight check is taking longer than expected. Run with ANTHROPIC_LOG=debug to check for failed or slow API requests.
[2026-01-21T21:32:26.305Z] [INFO] {"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01RrFz3VGerjCVrpg4UcYMrq","type":"tool_result","content":"<persisted-output>\nOutput too large (40.5KB). 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instance\"}}\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.501Z\",\"service\":\"state\",\"key\":\"/tmp/gh-issue-solver-1769000822352\",\"message\":\"waiting for state disposal to complete\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.501Z\",\"service\":\"state\",\"key\":\"/tmp/gh-issue-solver-1769000822352\",\"message\":\"state disposal completed\"}}\n\nhive@vmi2955137:~$ \n```\n\nPlease download all logs and data related about the issue to this repository, make sure we compile that data to `./docs/case-studies/issue-{id}` folder, and use it to do deep case study analysis (also make sure to search online for additional facts and data), in which we will reconstruct timeline/sequence of events, find root causes of the problem, and propose possible solutions.","stderr":"","interrupted":false,"isImage":false}}
[2026-01-21T21:32:28.937Z] [INFO] {
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[2026-01-21T21:32:30.102Z] [INFO] {"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01HxxDsUbxfG2E4eepdKVYqD","type":"tool_result","content":" 1β†’title:\tCannot convert undefined to number: toNumber error - returning NaN\n 2β†’state:\tOPEN\n 3β†’author:\tkonard\n 4β†’labels:\tbug\n 5β†’comments:\t0\n 6β†’assignees:\t\n 7β†’projects:\t\n 8β†’milestone:\t\n 9β†’number:\t127\n 10β†’--\n 11β†’```\n 12β†’hive@vmi2955137:~$ bun install -g @link-assistant/agent\n 13β†’bun add v1.3.6 (d530ed99)\n 14β†’\n 15β†’installed @link-assistant/[email protected] with binaries:\n 16β†’ - agent\n 17β†’\n 18β†’14 packages installed [1.73s]\n 19β†’\n 20β†’hive@vmi2955137:~$ (cd \"/tmp/gh-issue-solver-1769000822352\" && cat \"/tmp/agent_prompt_1769000865749_678166.txt\" | agent --model opencode/grok-code --verbose)\n 21β†’{\n 22β†’ \"type\": \"status\",\n 23β†’ \"mode\": \"stdin-stream\",\n 24β†’ \"message\": \"Agent CLI in continuous listening mode. 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579β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.496Z\",\"service\":\"session.prompt\",\"sessionID\":\"ses_41e1226edffeaFh6ulUwBeXUvk\",\"message\":\"exiting loop\"}}\n 580β†’\n 581β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.496Z\",\"service\":\"session.compaction\",\"message\":\"pruning\"}}\n 582β†’\n 583β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.497Z\",\"service\":\"bus\",\"type\":\"session.updated\",\"message\":\"publishing\"}}\n 584β†’\n 585β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.497Z\",\"service\":\"bus\",\"type\":\"session.diff\",\"message\":\"publishing\"}}\n 586β†’\n 587β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.498Z\",\"service\":\"session.prompt\",\"sessionID\":\"ses_41e1226edffeaFh6ulUwBeXUvk\",\"message\":\"cancel\"}}\n 588β†’\n 589β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.498Z\",\"service\":\"bus\",\"type\":\"session.status\",\"message\":\"publishing\"}}\n 590β†’\n 591β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.498Z\",\"service\":\"bus\",\"type\":\"session.idle\",\"message\":\"publishing\"}}\n 592β†’\n 593β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.498Z\",\"service\":\"bus\",\"type\":\"*\",\"message\":\"unsubscribing\"}}\n 594β†’\n 595β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.501Z\",\"service\":\"bus\",\"type\":\"*\",\"message\":\"unsubscribing\"}}\n 596β†’\n 597β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.501Z\",\"service\":\"default\",\"directory\":\"/tmp/gh-issue-solver-1769000822352\",\"message\":\"disposing instance\"}}\n 598β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.501Z\",\"service\":\"state\",\"key\":\"/tmp/gh-issue-solver-1769000822352\",\"message\":\"waiting for state disposal to complete\"}}\n 599β†’\n 600β†’{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.501Z\",\"service\":\"state\",\"key\":\"/tmp/gh-issue-solver-1769000822352\",\"message\":\"state disposal completed\"}}\n 601β†’\n 602β†’hive@vmi2955137:~$ \n 603β†’```\n 604β†’\n 605β†’Please download all logs and data related about the issue to this repository, make sure we compile that data to `./docs/case-studies/issue-{id}` folder, and use it to do deep case study analysis (also make sure to search online for additional facts and data), in which we will reconstruct timeline/sequence of events, find root causes of the problem, and propose possible solutions.\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"parent_tool_use_id":null,"session_id":"550af937-3a6e-4e2d-b006-ae2e73646e47","uuid":"c65f5569-8b14-4e9b-8754-ecf2907958bf","tool_use_result":{"type":"text","file":{"filePath":"/home/hive/.claude/projects/-tmp-gh-issue-solver-1769031083044/550af937-3a6e-4e2d-b006-ae2e73646e47/tool-results/toolu_01RrFz3VGerjCVrpg4UcYMrq.txt","content":"title:\tCannot convert undefined to number: toNumber error - returning NaN\nstate:\tOPEN\nauthor:\tkonard\nlabels:\tbug\ncomments:\t0\nassignees:\t\nprojects:\t\nmilestone:\t\nnumber:\t127\n--\n```\nhive@vmi2955137:~$ bun install -g @link-assistant/agent\nbun add v1.3.6 (d530ed99)\n\ninstalled @link-assistant/[email protected] with binaries:\n - agent\n\n14 packages installed [1.73s]\n\nhive@vmi2955137:~$ (cd \"/tmp/gh-issue-solver-1769000822352\" && cat \"/tmp/agent_prompt_1769000865749_678166.txt\" | agent --model opencode/grok-code --verbose)\n{\n \"type\": \"status\",\n \"mode\": \"stdin-stream\",\n \"message\": \"Agent CLI in continuous listening mode. Accepts JSON and plain text input.\",\n \"hint\": \"Press CTRL+C to exit. 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input\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.420Z\",\"service\":\"session\",\"context\":\"costInfo.cache_read\",\"result\":\"0\",\"message\":\"toDecimal success\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.420Z\",\"service\":\"session\",\"context\":\"tokens.cache.write\",\"valueType\":\"number\",\"value\":\"0\",\"message\":\"toDecimal input\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.420Z\",\"service\":\"session\",\"context\":\"tokens.cache.write\",\"result\":\"0\",\"message\":\"toDecimal success\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.420Z\",\"service\":\"session\",\"context\":\"costInfo.cache_write\",\"valueType\":\"number\",\"value\":\"0\",\"message\":\"toDecimal input\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.420Z\",\"service\":\"session\",\"context\":\"costInfo.cache_write\",\"result\":\"0\",\"message\":\"toDecimal success\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.420Z\",\"service\":\"session\",\"context\":\"tokens.reasoning\",\"valueType\":\"number\",\"value\":\"0\",\"message\":\"toDecimal input\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.420Z\",\"service\":\"session\",\"context\":\"tokens.reasoning\",\"result\":\"0\",\"message\":\"toDecimal success\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.420Z\",\"service\":\"session\",\"context\":\"costInfo.output_for_reasoning\",\"valueType\":\"number\",\"value\":\"0\",\"message\":\"toDecimal input\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.420Z\",\"service\":\"session\",\"context\":\"costInfo.output_for_reasoning\",\"result\":\"0\",\"message\":\"toDecimal success\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.421Z\",\"service\":\"session\",\"valueType\":\"object\",\"value\":\"{\\\"unified\\\":\\\"tool-calls\\\",\\\"raw\\\":\\\"tool_calls\\\"}\",\"message\":\"toFinishReason input\"}}\n\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.421Z\",\"service\":\"session\",\"result\":\"{\\\"unified\\\":\\\"tool-calls\\\",\\\"raw\\\":\\\"tool_calls\\\"}\",\"message\":\"toFinishReason could not extract string, using JSON\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.444Z\",\"service\":\"snapshot\",\"hash\":\"fb2c2307055334dc86395a7464836f4a3eacd4f4\\n\",\"cwd\":\"/tmp/gh-issue-solver-1769000822352\",\"git\":\"/home/hive/.local/share/link-assistant-agent/snapshot/99069199f5cfc92d94d098b85a12f240a4410ff2\",\"message\":\"tracking\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.446Z\",\"service\":\"bus\",\"type\":\"message.part.updated\",\"message\":\"publishing\"}}\n\n{\n \"type\": \"step_finish\",\n \"timestamp\": 1769022031446,\n \"sessionID\": \"ses_41e1226edffeaFh6ulUwBeXUvk\",\n \"part\": {\n \"id\": \"prt_be1ee063d001DyjkNWRmRJj6d9\",\n \"sessionID\": \"ses_41e1226edffeaFh6ulUwBeXUvk\",\n \"messageID\": \"msg_be1edd9bc001XZt2BuF85btbsp\",\n \"type\": \"step-finish\",\n \"reason\": \"{\\\"unified\\\":\\\"tool-calls\\\",\\\"raw\\\":\\\"tool_calls\\\"}\",\n \"snapshot\": \"fb2c2307055334dc86395a7464836f4a3eacd4f4\",\n \"cost\": 0,\n \"tokens\": {\n \"input\": 12703,\n \"output\": 562,\n \"reasoning\": 0,\n \"cache\": {\n \"read\": 0,\n \"write\": 0\n }\n }\n }\n}\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.447Z\",\"service\":\"bus\",\"type\":\"message.updated\",\"message\":\"publishing\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.482Z\",\"service\":\"bus\",\"type\":\"message.updated\",\"message\":\"publishing\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.483Z\",\"service\":\"bus\",\"type\":\"message.updated\",\"message\":\"publishing\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.484Z\",\"service\":\"session.prompt\",\"step\":1,\"sessionID\":\"ses_41e1226edffeaFh6ulUwBeXUvk\",\"message\":\"loop\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.493Z\",\"service\":\"bus\",\"type\":\"message.updated\",\"message\":\"publishing\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.496Z\",\"service\":\"session.prompt\",\"sessionID\":\"ses_41e1226edffeaFh6ulUwBeXUvk\",\"message\":\"exiting loop\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.496Z\",\"service\":\"session.compaction\",\"message\":\"pruning\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.497Z\",\"service\":\"bus\",\"type\":\"session.updated\",\"message\":\"publishing\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.497Z\",\"service\":\"bus\",\"type\":\"session.diff\",\"message\":\"publishing\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.498Z\",\"service\":\"session.prompt\",\"sessionID\":\"ses_41e1226edffeaFh6ulUwBeXUvk\",\"message\":\"cancel\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.498Z\",\"service\":\"bus\",\"type\":\"session.status\",\"message\":\"publishing\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.498Z\",\"service\":\"bus\",\"type\":\"session.idle\",\"message\":\"publishing\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.498Z\",\"service\":\"bus\",\"type\":\"*\",\"message\":\"unsubscribing\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.501Z\",\"service\":\"bus\",\"type\":\"*\",\"message\":\"unsubscribing\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.501Z\",\"service\":\"default\",\"directory\":\"/tmp/gh-issue-solver-1769000822352\",\"message\":\"disposing instance\"}}\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.501Z\",\"service\":\"state\",\"key\":\"/tmp/gh-issue-solver-1769000822352\",\"message\":\"waiting for state disposal to complete\"}}\n\n{\"log\":{\"level\":\"info\",\"timestamp\":\"2026-01-21T19:00:31.501Z\",\"service\":\"state\",\"key\":\"/tmp/gh-issue-solver-1769000822352\",\"message\":\"state disposal completed\"}}\n\nhive@vmi2955137:~$ \n```\n\nPlease download all logs and data related about the issue to this repository, make sure we compile that data to `./docs/case-studies/issue-{id}` folder, and use it to do deep case study analysis (also make sure to search online for additional facts and data), in which we will reconstruct timeline/sequence of events, find root causes of the problem, and propose possible solutions.","numLines":605,"startLine":1,"totalLines":605}}}
[2026-01-21T21:32:35.057Z] [INFO] {
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"text": "Now I understand the issue. The bug is about a `toNumber` function that returns `NaN` when it receives `undefined` values for certain token fields like `cachedInputTokens`, `cacheWriteTokens`, and `reasoningTokens`. Looking at the logs:\n\n```\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.419Z\",\"service\":\"session\",\"context\":\"cachedInputTokens\",\"valueType\":\"undefined\",\"value\":\"undefined\",\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"}}\n```\n\nLet me explore the codebase to understand the structure and find the `toNumber` function."
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[2026-01-21T21:32:38.409Z] [INFO] {
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[2026-01-21T21:32:42.029Z] [INFO] {
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[2026-01-21T21:32:42.153Z] [INFO] {
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"stderr": "",
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[2026-01-21T21:32:42.177Z] [INFO] {
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[2026-01-21T21:32:44.653Z] [INFO] {
"type": "assistant",
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"id": "msg_01LhsUwfdY6HvvYDJBgiNhyu",
"type": "message",
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"content": [
{
"type": "text",
"text": "I'm on the correct branch. Now let me search for the `toNumber` function to find its location:"
}
],
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[2026-01-21T21:32:45.373Z] [INFO] {
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{
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"content": "js/tests/session-usage.test.ts:6: * Unit tests for Session.toDecimal(), Session.toNumber(), and Session.getUsage()\njs/tests/session-usage.test.ts:16: expect(result.toNumber()).toBe(42);\njs/tests/session-usage.test.ts:22: expect(result.toNumber()).toBe(-100);\njs/tests/session-usage.test.ts:28: expect(result.toNumber()).toBe(0);\njs/tests/session-usage.test.ts:34: expect(result.toNumber()).toBeCloseTo(3.14159, 5);\njs/tests/session-usage.test.ts:67: expect(result.toNumber()).toBe(42);\njs/tests/session-usage.test.ts:95: expect(result1.toNumber()).toBe(42);\njs/tests/session-usage.test.ts:103: expect(result.toNumber()).toBe(300);\njs/tests/session-usage.test.ts:114:describe('Session.toNumber() - safe number conversion', () => {\njs/tests/session-usage.test.ts:116: const result = Session.toNumber(42);\njs/tests/session-usage.test.ts:122: const result = Session.toNumber(-100);\njs/tests/session-usage.test.ts:128: const result = Session.toNumber(0);\njs/tests/session-usage.test.ts:134: const result = Session.toNumber(3.14159);\njs/tests/session-usage.test.ts:140: const result = Session.toNumber(NaN);\njs/tests/session-usage.test.ts:145: const result = Session.toNumber(Infinity);\njs/tests/session-usage.test.ts:151: const result = Session.toNumber(-Infinity);\njs/tests/session-usage.test.ts:157: const result = Session.toNumber({ count: 100 } as unknown);\njs/tests/session-usage.test.ts:162: const result = Session.toNumber('42' as unknown);\njs/tests/session-usage.test.ts:168: const result = Session.toNumber('abc' as unknown);\njs/tests/session-usage.test.ts:173: const result = Session.toNumber(undefined);\njs/tests/session-usage.test.ts:178: const result = Session.toNumber(null);\njs/tests/session-usage.test.ts:183: const result = Session.toNumber([1, 2, 3] as unknown);\njs/tests/session-usage.test.ts:189: const result = Session.toNumber([1] as unknown);\njs/tests/session-usage.test.ts:195: const result1 = Session.toNumber(42, 'inputTokens');\njs/tests/session-usage.test.ts:196: const result2 = Session.toNumber(NaN, 'outputTokens');\njs/tests/session-usage.test.ts:202: const a = Session.toNumber(100);\njs/tests/session-usage.test.ts:203: const b = Session.toNumber(50);\njs/tests/session-usage.test.ts:209: const valid = Session.toNumber(100);\njs/tests/session-usage.test.ts:210: const invalid = Session.toNumber(NaN);\njs/tests/session-usage.test.ts:216: const result = Session.toNumber('' as unknown);\njs/tests/session-usage.test.ts:224: const result = Session.toNumber(' ' as unknown);\njs/tests/session-usage.test.ts:496: * Unit tests for Session.toNumber() - extended tests for issue #125\njs/tests/session-usage.test.ts:501:describe('Session.toNumber() - object with total field (issue #125)', () => {\njs/tests/session-usage.test.ts:503: const result = Session.toNumber({\njs/tests/session-usage.test.ts:513: const result = Session.toNumber({ total: 100 } as unknown);\njs/tests/session-usage.test.ts:518: const result = Session.toNumber({\njs/tests/session-usage.test.ts:527: const result = Session.toNumber({ count: 100, value: 200 } as unknown);\njs/tests/session-usage.test.ts:532: const result = Session.toNumber({ total: 'not a number' } as unknown);\njs/tests/session-usage.test.ts:537: const result = Session.toNumber({ total: 0, other: 100 } as unknown);\njs/tests/session-usage.test.ts:543: const result = Session.toNumber({ total: -50 } as unknown);\nexperiments/issue-119-decimal-error/reproduce-error.ts:50: .toNumber();\nexperiments/issue-119-decimal-error/reproduce-error.ts:185: const cost = costDecimal.isNaN() ? 0 : costDecimal.toNumber();\njs/src/session/index.ts:398: export const toNumber = (value: unknown, context?: string): number => {\njs/src/session/index.ts:402: message: 'toNumber input',\njs/src/session/index.ts:428: message: 'toNumber extracted total from object',\njs/src/session/index.ts:448: message: 'toNumber success',\njs/src/session/index.ts:459: message: 'toNumber error - returning NaN',\njs/src/session/index.ts:571: // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\njs/src/session/index.ts:576: toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\njs/src/session/index.ts:583: toNumber(input.usage.inputTokens, 'inputTokens')\njs/src/session/index.ts:590: toNumber(\njs/src/session/index.ts:600: output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\njs/src/session/index.ts:602: toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\njs/src/session/index.ts:652: : costDecimal.toNumber();\njs/CHANGELOG.md:8: - Enhanced `toNumber()` to extract `total` from objects with that field\ndocs/case-studies/issue-125/README.md:74:1. **`src/session/index.ts` - `toNumber()` function**: The function used `Number(value)` which returns `NaN` for objects, causing token counts to be incorrectly set to 0.\ndocs/case-studies/issue-125/README.md:85:### Fix 1: Enhanced `toNumber()` Function\ndocs/case-studies/issue-125/README.md:136:1. Tests for `toNumber()` with objects containing `total` field\ndocs/case-studies/issue-125/README.md:159:- `js/src/session/index.ts` - Enhanced `toNumber()`, added `toFinishReason()`\ndocs/case-studies/issue-119/README.md:54: cost: safe(new Decimal(0).add(...).toNumber()),\ndocs/case-studies/issue-119/README.md:69: cost: new Decimal(0).add(new Decimal(tokens.input)...).toNumber(), // CRASH!\ndocs/case-studies/issue-119/README.md:146: cost = new Decimal(0).add(...).toNumber();\ndocs/case-studies/issue-125/data/issue-125.json:1:[Omitted long matching line]"
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"content": "js/tests/session-usage.test.ts:6: * Unit tests for Session.toDecimal(), Session.toNumber(), and Session.getUsage()\njs/tests/session-usage.test.ts:16: expect(result.toNumber()).toBe(42);\njs/tests/session-usage.test.ts:22: expect(result.toNumber()).toBe(-100);\njs/tests/session-usage.test.ts:28: expect(result.toNumber()).toBe(0);\njs/tests/session-usage.test.ts:34: expect(result.toNumber()).toBeCloseTo(3.14159, 5);\njs/tests/session-usage.test.ts:67: expect(result.toNumber()).toBe(42);\njs/tests/session-usage.test.ts:95: expect(result1.toNumber()).toBe(42);\njs/tests/session-usage.test.ts:103: expect(result.toNumber()).toBe(300);\njs/tests/session-usage.test.ts:114:describe('Session.toNumber() - safe number conversion', () => {\njs/tests/session-usage.test.ts:116: const result = Session.toNumber(42);\njs/tests/session-usage.test.ts:122: const result = Session.toNumber(-100);\njs/tests/session-usage.test.ts:128: const result = Session.toNumber(0);\njs/tests/session-usage.test.ts:134: const result = Session.toNumber(3.14159);\njs/tests/session-usage.test.ts:140: const result = Session.toNumber(NaN);\njs/tests/session-usage.test.ts:145: const result = Session.toNumber(Infinity);\njs/tests/session-usage.test.ts:151: const result = Session.toNumber(-Infinity);\njs/tests/session-usage.test.ts:157: const result = Session.toNumber({ count: 100 } as unknown);\njs/tests/session-usage.test.ts:162: const result = Session.toNumber('42' as unknown);\njs/tests/session-usage.test.ts:168: const result = Session.toNumber('abc' as unknown);\njs/tests/session-usage.test.ts:173: const result = Session.toNumber(undefined);\njs/tests/session-usage.test.ts:178: const result = Session.toNumber(null);\njs/tests/session-usage.test.ts:183: const result = Session.toNumber([1, 2, 3] as unknown);\njs/tests/session-usage.test.ts:189: const result = Session.toNumber([1] as unknown);\njs/tests/session-usage.test.ts:195: const result1 = Session.toNumber(42, 'inputTokens');\njs/tests/session-usage.test.ts:196: const result2 = Session.toNumber(NaN, 'outputTokens');\njs/tests/session-usage.test.ts:202: const a = Session.toNumber(100);\njs/tests/session-usage.test.ts:203: const b = Session.toNumber(50);\njs/tests/session-usage.test.ts:209: const valid = Session.toNumber(100);\njs/tests/session-usage.test.ts:210: const invalid = Session.toNumber(NaN);\njs/tests/session-usage.test.ts:216: const result = Session.toNumber('' as unknown);\njs/tests/session-usage.test.ts:224: const result = Session.toNumber(' ' as unknown);\njs/tests/session-usage.test.ts:496: * Unit tests for Session.toNumber() - extended tests for issue #125\njs/tests/session-usage.test.ts:501:describe('Session.toNumber() - object with total field (issue #125)', () => {\njs/tests/session-usage.test.ts:503: const result = Session.toNumber({\njs/tests/session-usage.test.ts:513: const result = Session.toNumber({ total: 100 } as unknown);\njs/tests/session-usage.test.ts:518: const result = Session.toNumber({\njs/tests/session-usage.test.ts:527: const result = Session.toNumber({ count: 100, value: 200 } as unknown);\njs/tests/session-usage.test.ts:532: const result = Session.toNumber({ total: 'not a number' } as unknown);\njs/tests/session-usage.test.ts:537: const result = Session.toNumber({ total: 0, other: 100 } as unknown);\njs/tests/session-usage.test.ts:543: const result = Session.toNumber({ total: -50 } as unknown);\nexperiments/issue-119-decimal-error/reproduce-error.ts:50: .toNumber();\nexperiments/issue-119-decimal-error/reproduce-error.ts:185: const cost = costDecimal.isNaN() ? 0 : costDecimal.toNumber();\njs/src/session/index.ts:398: export const toNumber = (value: unknown, context?: string): number => {\njs/src/session/index.ts:402: message: 'toNumber input',\njs/src/session/index.ts:428: message: 'toNumber extracted total from object',\njs/src/session/index.ts:448: message: 'toNumber success',\njs/src/session/index.ts:459: message: 'toNumber error - returning NaN',\njs/src/session/index.ts:571: // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\njs/src/session/index.ts:576: toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\njs/src/session/index.ts:583: toNumber(input.usage.inputTokens, 'inputTokens')\njs/src/session/index.ts:590: toNumber(\njs/src/session/index.ts:600: output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\njs/src/session/index.ts:602: toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\njs/src/session/index.ts:652: : costDecimal.toNumber();\njs/CHANGELOG.md:8: - Enhanced `toNumber()` to extract `total` from objects with that field\ndocs/case-studies/issue-125/README.md:74:1. **`src/session/index.ts` - `toNumber()` function**: The function used `Number(value)` which returns `NaN` for objects, causing token counts to be incorrectly set to 0.\ndocs/case-studies/issue-125/README.md:85:### Fix 1: Enhanced `toNumber()` Function\ndocs/case-studies/issue-125/README.md:136:1. Tests for `toNumber()` with objects containing `total` field\ndocs/case-studies/issue-125/README.md:159:- `js/src/session/index.ts` - Enhanced `toNumber()`, added `toFinishReason()`\ndocs/case-studies/issue-119/README.md:54: cost: safe(new Decimal(0).add(...).toNumber()),\ndocs/case-studies/issue-119/README.md:69: cost: new Decimal(0).add(new Decimal(tokens.input)...).toNumber(), // CRASH!\ndocs/case-studies/issue-119/README.md:146: cost = new Decimal(0).add(...).toNumber();\ndocs/case-studies/issue-125/data/issue-125.json:1:[Omitted long matching line]",
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"text": "I found the `toNumber` function in `js/src/session/index.ts`. Let me read that file to understand the current implementation:"
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[2026-01-21T21:32:49.297Z] [INFO] {
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{
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"content": " 390β†’ * This is necessary because AI providers may return unexpected token usage data\n 391β†’ * that would cause issues if not handled properly.\n 392β†’ *\n 393β†’ * @param value - The value to convert to number (number, string, etc.)\n 394β†’ * @param context - Optional context string for debugging (e.g., \"inputTokens\")\n 395β†’ * @returns A number, or NaN if conversion fails\n 396β†’ * @see https://github.com/link-assistant/agent/issues/119\n 397β†’ */\n 398β†’ export const toNumber = (value: unknown, context?: string): number => {\n 399β†’ // Log input data in verbose mode to help identify issues\n 400β†’ if (Flag.OPENCODE_VERBOSE) {\n 401β†’ log.debug(() => ({\n 402β†’ message: 'toNumber input',\n 403β†’ context,\n 404β†’ valueType: typeof value,\n 405β†’ value:\n 406β†’ typeof value === 'object' ? JSON.stringify(value) : String(value),\n 407β†’ }));\n 408β†’ }\n 409β†’\n 410β†’ try {\n 411β†’ // Handle undefined/null explicitly - Number() would convert these to 0 or NaN\n 412β†’ if (value === undefined || value === null) {\n 413β†’ throw new Error(`Cannot convert ${value} to number`);\n 414β†’ }\n 415β†’\n 416β†’ // Handle objects with a 'total' field (e.g., { total: 8707, noCache: 6339, cacheRead: 2368 })\n 417β†’ // Some AI providers return token counts as objects instead of plain numbers\n 418β†’ // See: https://github.com/link-assistant/agent/issues/125\n 419β†’ if (\n 420β†’ typeof value === 'object' &&\n 421β†’ value !== null &&\n 422β†’ 'total' in value &&\n 423β†’ typeof (value as { total: unknown }).total === 'number'\n 424β†’ ) {\n 425β†’ const result = (value as { total: number }).total;\n 426β†’ if (Flag.OPENCODE_VERBOSE) {\n 427β†’ log.debug(() => ({\n 428β†’ message: 'toNumber extracted total from object',\n 429β†’ context,\n 430β†’ result,\n 431β†’ }));\n 432β†’ }\n 433β†’ return result;\n 434β†’ }\n 435β†’\n 436β†’ // Try to convert to number\n 437β†’ const result = Number(value);\n 438β†’\n 439β†’ // Check if conversion produced a valid result\n 440β†’ // Note: Number({}) returns NaN, Number([1]) returns 1, Number([1,2]) returns NaN\n 441β†’ if (Number.isNaN(result)) {\n 442β†’ throw new Error(`Conversion to number resulted in NaN`);\n 443β†’ }\n 444β†’\n 445β†’ // Log successful conversion in verbose mode\n 446β†’ if (Flag.OPENCODE_VERBOSE) {\n 447β†’ log.debug(() => ({\n 448β†’ message: 'toNumber success',\n 449β†’ context,\n 450β†’ result,\n 451β†’ }));\n 452β†’ }\n 453β†’\n 454β†’ return result;\n 455β†’ } catch (error) {\n 456β†’ // Log the error and return NaN\n 457β†’ if (Flag.OPENCODE_VERBOSE) {\n 458β†’ log.debug(() => ({\n 459β†’ message: 'toNumber error - returning NaN',\n 460β†’ context,\n 461β†’ valueType: typeof value,\n 462β†’ value:\n 463β†’ typeof value === 'object' ? JSON.stringify(value) : String(value),\n 464β†’ error: error instanceof Error ? error.message : String(error),\n 465β†’ }));\n 466β†’ }\n 467β†’ return NaN;\n 468β†’ }\n 469β†’ };\n 470β†’\n 471β†’ /**\n 472β†’ * Safely converts a finishReason value to a string.\n 473β†’ * Some AI providers return finishReason as an object instead of a string.\n 474β†’ *\n 475β†’ * For example, OpenCode provider on certain Bun versions may return:\n 476β†’ * - { type: \"stop\" } instead of \"stop\"\n 477β†’ * - { finishReason: \"tool-calls\" } instead of \"tool-calls\"\n 478β†’ *\n 479β†’ * This function handles these cases gracefully.\n 480β†’ *\n 481β†’ * @param value - The finishReason value (string, object, or undefined)\n 482β†’ * @returns A string representing the finish reason, or 'unknown' if conversion fails\n 483β†’ * @see https://github.com/link-assistant/agent/issues/125\n 484β†’ */\n 485β†’ export const toFinishReason = (value: unknown): string => {\n 486β†’ // Log input data in verbose mode to help identify issues\n 487β†’ if (Flag.OPENCODE_VERBOSE) {\n 488β†’ log.debug(() => ({\n 489β†’ message: 'toFinishReason input',\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
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"content": " * This is necessary because AI providers may return unexpected token usage data\n * that would cause issues if not handled properly.\n *\n * @param value - The value to convert to number (number, string, etc.)\n * @param context - Optional context string for debugging (e.g., \"inputTokens\")\n * @returns A number, or NaN if conversion fails\n * @see https://github.com/link-assistant/agent/issues/119\n */\n export const toNumber = (value: unknown, context?: string): number => {\n // Log input data in verbose mode to help identify issues\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber input',\n context,\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n }));\n }\n\n try {\n // Handle undefined/null explicitly - Number() would convert these to 0 or NaN\n if (value === undefined || value === null) {\n throw new Error(`Cannot convert ${value} to number`);\n }\n\n // Handle objects with a 'total' field (e.g., { total: 8707, noCache: 6339, cacheRead: 2368 })\n // Some AI providers return token counts as objects instead of plain numbers\n // See: https://github.com/link-assistant/agent/issues/125\n if (\n typeof value === 'object' &&\n value !== null &&\n 'total' in value &&\n typeof (value as { total: unknown }).total === 'number'\n ) {\n const result = (value as { total: number }).total;\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber extracted total from object',\n context,\n result,\n }));\n }\n return result;\n }\n\n // Try to convert to number\n const result = Number(value);\n\n // Check if conversion produced a valid result\n // Note: Number({}) returns NaN, Number([1]) returns 1, Number([1,2]) returns NaN\n if (Number.isNaN(result)) {\n throw new Error(`Conversion to number resulted in NaN`);\n }\n\n // Log successful conversion in verbose mode\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber success',\n context,\n result,\n }));\n }\n\n return result;\n } catch (error) {\n // Log the error and return NaN\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber error - returning NaN',\n context,\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n error: error instanceof Error ? error.message : String(error),\n }));\n }\n return NaN;\n }\n };\n\n /**\n * Safely converts a finishReason value to a string.\n * Some AI providers return finishReason as an object instead of a string.\n *\n * For example, OpenCode provider on certain Bun versions may return:\n * - { type: \"stop\" } instead of \"stop\"\n * - { finishReason: \"tool-calls\" } instead of \"tool-calls\"\n *\n * This function handles these cases gracefully.\n *\n * @param value - The finishReason value (string, object, or undefined)\n * @returns A string representing the finish reason, or 'unknown' if conversion fails\n * @see https://github.com/link-assistant/agent/issues/125\n */\n export const toFinishReason = (value: unknown): string => {\n // Log input data in verbose mode to help identify issues\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason input',",
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"text": "Now let me read the `getUsage` function to see how `toNumber` is used:"
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[2026-01-21T21:32:52.350Z] [INFO] {
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"content": " 560β†’ }),\n 561β†’ (input) => {\n 562β†’ // Log raw usage data in verbose mode for debugging\n 563β†’ if (Flag.OPENCODE_VERBOSE) {\n 564β†’ log.debug(() => ({\n 565β†’ message: 'getUsage called with raw data',\n 566β†’ rawUsage: JSON.stringify(input.usage),\n 567β†’ rawMetadata: input.metadata ? JSON.stringify(input.metadata) : 'none',\n 568β†’ }));\n 569β†’ }\n 570β†’\n 571β†’ // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n 572β†’ const safeNum = (n: number): number =>\n 573β†’ Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n 574β†’\n 575β†’ const cachedInputTokens = safeNum(\n 576β†’ toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n 577β†’ );\n 578β†’ const excludesCachedTokens = !!(\n 579β†’ input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n 580β†’ );\n 581β†’\n 582β†’ const rawInputTokens = safeNum(\n 583β†’ toNumber(input.usage.inputTokens, 'inputTokens')\n 584β†’ );\n 585β†’ const adjustedInputTokens = excludesCachedTokens\n 586β†’ ? rawInputTokens\n 587β†’ : rawInputTokens - cachedInputTokens;\n 588β†’\n 589β†’ const cacheWriteTokens = safeNum(\n 590β†’ toNumber(\n 591β†’ input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n 592β†’ // @ts-expect-error - bedrock metadata structure may vary\n 593β†’ input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 594β†’ 'cacheWriteTokens'\n 595β†’ )\n 596β†’ );\n 597β†’\n 598β†’ const tokens = {\n 599β†’ input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n 600β†’ output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n 601β†’ reasoning: safeNum(\n 602β†’ toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n 603β†’ ),\n 604β†’ cache: {\n 605β†’ write: cacheWriteTokens,\n 606β†’ read: cachedInputTokens,\n 607β†’ },\n 608β†’ };\n 609β†’\n 610β†’ const costInfo =\n 611β†’ input.model.cost?.context_over_200k &&\n 612β†’ tokens.input + tokens.cache.read > 200_000\n 613β†’ ? input.model.cost.context_over_200k\n 614β†’ : input.model.cost;\n 615β†’\n 616β†’ // Calculate cost using toDecimal for safe Decimal construction\n 617β†’ const costDecimal = toDecimal(0, 'cost_base')\n 618β†’ .add(\n 619β†’ toDecimal(tokens.input, 'tokens.input')\n 620β†’ .mul(toDecimal(costInfo?.input ?? 0, 'costInfo.input'))\n 621β†’ .div(1_000_000)\n 622β†’ )\n 623β†’ .add(\n 624β†’ toDecimal(tokens.output, 'tokens.output')\n 625β†’ .mul(toDecimal(costInfo?.output ?? 0, 'costInfo.output'))\n 626β†’ .div(1_000_000)\n 627β†’ )\n 628β†’ .add(\n 629β†’ toDecimal(tokens.cache.read, 'tokens.cache.read')\n 630β†’ .mul(toDecimal(costInfo?.cache_read ?? 0, 'costInfo.cache_read'))\n 631β†’ .div(1_000_000)\n 632β†’ )\n 633β†’ .add(\n 634β†’ toDecimal(tokens.cache.write, 'tokens.cache.write')\n 635β†’ .mul(toDecimal(costInfo?.cache_write ?? 0, 'costInfo.cache_write'))\n 636β†’ .div(1_000_000)\n 637β†’ )\n 638β†’ // TODO: update models.dev to have better pricing model, for now:\n 639β†’ // charge reasoning tokens at the same rate as output tokens\n 640β†’ .add(\n 641β†’ toDecimal(tokens.reasoning, 'tokens.reasoning')\n 642β†’ .mul(\n 643β†’ toDecimal(costInfo?.output ?? 0, 'costInfo.output_for_reasoning')\n 644β†’ )\n 645β†’ .div(1_000_000)\n 646β†’ );\n 647β†’\n 648β†’ // Convert to number, defaulting to 0 if result is NaN or not finite\n 649β†’ const cost =\n 650β†’ costDecimal.isNaN() || !costDecimal.isFinite()\n 651β†’ ? 0\n 652β†’ : costDecimal.toNumber();\n 653β†’\n 654β†’ return {\n 655β†’ cost,\n 656β†’ tokens,\n 657β†’ };\n 658β†’ }\n 659β†’ );\n 660β†’\n 661β†’ export class BusyError extends Error {\n 662β†’ constructor(public readonly sessionID: string) {\n 663β†’ super(`Session ${sessionID} is busy`);\n 664β†’ }\n 665β†’ }\n 666β†’\n 667β†’ export const initialize = fn(\n 668β†’ z.object({\n 669β†’ sessionID: Identifier.schema('session'),\n 670β†’ modelID: z.string(),\n 671β†’ providerID: z.string(),\n 672β†’ messageID: Identifier.schema('message'),\n 673β†’ }),\n 674β†’ async (input) => {\n 675β†’ await SessionPrompt.command({\n 676β†’ sessionID: input.sessionID,\n 677β†’ messageID: input.messageID,\n 678β†’ model: input.providerID + '/' + input.modelID,\n 679β†’ command: Command.Default.INIT,\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
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"content": " }),\n (input) => {\n // Log raw usage data in verbose mode for debugging\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'getUsage called with raw data',\n rawUsage: JSON.stringify(input.usage),\n rawMetadata: input.metadata ? JSON.stringify(input.metadata) : 'none',\n }));\n }\n\n // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n const safeNum = (n: number): number =>\n Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n\n const cachedInputTokens = safeNum(\n toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n );\n const excludesCachedTokens = !!(\n input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n );\n\n const rawInputTokens = safeNum(\n toNumber(input.usage.inputTokens, 'inputTokens')\n );\n const adjustedInputTokens = excludesCachedTokens\n ? rawInputTokens\n : rawInputTokens - cachedInputTokens;\n\n const cacheWriteTokens = safeNum(\n toNumber(\n input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n // @ts-expect-error - bedrock metadata structure may vary\n input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 'cacheWriteTokens'\n )\n );\n\n const tokens = {\n input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n reasoning: safeNum(\n toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n ),\n cache: {\n write: cacheWriteTokens,\n read: cachedInputTokens,\n },\n };\n\n const costInfo =\n input.model.cost?.context_over_200k &&\n tokens.input + tokens.cache.read > 200_000\n ? input.model.cost.context_over_200k\n : input.model.cost;\n\n // Calculate cost using toDecimal for safe Decimal construction\n const costDecimal = toDecimal(0, 'cost_base')\n .add(\n toDecimal(tokens.input, 'tokens.input')\n .mul(toDecimal(costInfo?.input ?? 0, 'costInfo.input'))\n .div(1_000_000)\n )\n .add(\n toDecimal(tokens.output, 'tokens.output')\n .mul(toDecimal(costInfo?.output ?? 0, 'costInfo.output'))\n .div(1_000_000)\n )\n .add(\n toDecimal(tokens.cache.read, 'tokens.cache.read')\n .mul(toDecimal(costInfo?.cache_read ?? 0, 'costInfo.cache_read'))\n .div(1_000_000)\n )\n .add(\n toDecimal(tokens.cache.write, 'tokens.cache.write')\n .mul(toDecimal(costInfo?.cache_write ?? 0, 'costInfo.cache_write'))\n .div(1_000_000)\n )\n // TODO: update models.dev to have better pricing model, for now:\n // charge reasoning tokens at the same rate as output tokens\n .add(\n toDecimal(tokens.reasoning, 'tokens.reasoning')\n .mul(\n toDecimal(costInfo?.output ?? 0, 'costInfo.output_for_reasoning')\n )\n .div(1_000_000)\n );\n\n // Convert to number, defaulting to 0 if result is NaN or not finite\n const cost =\n costDecimal.isNaN() || !costDecimal.isFinite()\n ? 0\n : costDecimal.toNumber();\n\n return {\n cost,\n tokens,\n };\n }\n );\n\n export class BusyError extends Error {\n constructor(public readonly sessionID: string) {\n super(`Session ${sessionID} is busy`);\n }\n }\n\n export const initialize = fn(\n z.object({\n sessionID: Identifier.schema('session'),\n modelID: z.string(),\n providerID: z.string(),\n messageID: Identifier.schema('message'),\n }),\n async (input) => {\n await SessionPrompt.command({\n sessionID: input.sessionID,\n messageID: input.messageID,\n model: input.providerID + '/' + input.modelID,\n command: Command.Default.INIT,",
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[2026-01-21T21:32:58.938Z] [INFO] {
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{
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"text": "Now I understand the issue completely. Looking at the logs from the issue:\n\n```json\n{\"log\":{\"level\":\"debug\",\"timestamp\":\"2026-01-21T19:00:31.419Z\",\"service\":\"session\",\"context\":\"cachedInputTokens\",\"valueType\":\"undefined\",\"value\":\"undefined\",\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"}}\n```\n\nThe `toNumber` function correctly handles `undefined` by throwing an error and logging it, then returns `NaN`. The `safeNum` helper then converts this `NaN` to `0`.\n\nHowever, the issue title says \"Cannot convert undefined to number: toNumber error - returning NaN\" which is just a debug log message, not an actual bug that causes crashes. The current code is working as designed - it's handling the undefined gracefully by returning NaN which gets converted to 0.\n\nLet me check the existing tests and understand if there's a different expectation:"
}
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[2026-01-21T21:32:59.665Z] [INFO] {
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{
"tool_use_id": "toolu_011xzx2j2TRrE2nDYNqNinYr",
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"content": " 170β†’ });\n 171β†’\n 172β†’ test('returns NaN for undefined input', () => {\n 173β†’ const result = Session.toNumber(undefined);\n 174β†’ expect(Number.isNaN(result)).toBe(true);\n 175β†’ });\n 176β†’\n 177β†’ test('returns NaN for null input', () => {\n 178β†’ const result = Session.toNumber(null);\n 179β†’ expect(Number.isNaN(result)).toBe(true);\n 180β†’ });\n 181β†’\n 182β†’ test('returns NaN for array input with multiple elements', () => {\n 183β†’ const result = Session.toNumber([1, 2, 3] as unknown);\n 184β†’ expect(Number.isNaN(result)).toBe(true);\n 185β†’ });\n 186β†’\n 187β†’ test('returns number for single-element array (Number coercion)', () => {\n 188β†’ // Number([1]) returns 1 in JavaScript\n 189β†’ const result = Session.toNumber([1] as unknown);\n 190β†’ expect(result).toBe(1);\n 191β†’ });\n 192β†’\n 193β†’ test('accepts optional context parameter for debugging', () => {\n 194β†’ // Context parameter should not affect behavior, just for logging\n 195β†’ const result1 = Session.toNumber(42, 'inputTokens');\n 196β†’ const result2 = Session.toNumber(NaN, 'outputTokens');\n 197β†’ expect(result1).toBe(42);\n 198β†’ expect(Number.isNaN(result2)).toBe(true);\n 199β†’ });\n 200β†’\n 201β†’ test('can be used in arithmetic operations', () => {\n 202β†’ const a = Session.toNumber(100);\n 203β†’ const b = Session.toNumber(50);\n 204β†’ const result = (a + b) * 2;\n 205β†’ expect(result).toBe(300);\n 206β†’ });\n 207β†’\n 208β†’ test('NaN propagates through arithmetic', () => {\n 209β†’ const valid = Session.toNumber(100);\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
}
]
},
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"content": " });\n\n test('returns NaN for undefined input', () => {\n const result = Session.toNumber(undefined);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for null input', () => {\n const result = Session.toNumber(null);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for array input with multiple elements', () => {\n const result = Session.toNumber([1, 2, 3] as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns number for single-element array (Number coercion)', () => {\n // Number([1]) returns 1 in JavaScript\n const result = Session.toNumber([1] as unknown);\n expect(result).toBe(1);\n });\n\n test('accepts optional context parameter for debugging', () => {\n // Context parameter should not affect behavior, just for logging\n const result1 = Session.toNumber(42, 'inputTokens');\n const result2 = Session.toNumber(NaN, 'outputTokens');\n expect(result1).toBe(42);\n expect(Number.isNaN(result2)).toBe(true);\n });\n\n test('can be used in arithmetic operations', () => {\n const a = Session.toNumber(100);\n const b = Session.toNumber(50);\n const result = (a + b) * 2;\n expect(result).toBe(300);\n });\n\n test('NaN propagates through arithmetic', () => {\n const valid = Session.toNumber(100);",
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[2026-01-21T21:33:05.531Z] [INFO] {
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"text": "Now I see that the current behavior is expected - the test confirms that `toNumber(undefined)` should return `NaN`. But looking at the issue more carefully, the problem is that the debug log says \"toNumber error - returning NaN\" which makes it look like an error, when in fact it's just handling a missing optional field.\n\nLet me re-read the issue to understand the user's actual request:\n\nBased on the issue description, the user wants to:\n1. Download all logs and data related to the issue\n2. Create a case study in `./docs/case-studies/issue-127` folder\n3. Reconstruct timeline/sequence of events\n4. Find root causes\n5. Propose possible solutions\n\nLet me update my todo list and start working on this:"
}
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[2026-01-21T21:33:09.553Z] [INFO] {
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[2026-01-21T21:33:09.579Z] [INFO] {
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{
"tool_use_id": "toolu_01KDx5WEF4th1g1FoLd8AWPw",
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"content": "Todos have been modified successfully. Ensure that you continue to use the todo list to track your progress. Please proceed with the current tasks if applicable"
}
]
},
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[2026-01-21T21:33:12.650Z] [INFO] {
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"content": " 1β†’# Case Study: Issue #125 - Invalid input: expected string, received object\n 2β†’\n 3β†’## Summary\n 4β†’\n 5β†’This case study documents the investigation and resolution of a platform-specific bug where the agent CLI would crash with a Zod validation error on Ubuntu servers but work correctly on macOS.\n 6β†’\n 7β†’## Issue Details\n 8β†’\n 9β†’- **Issue**: [#125](https://github.com/link-assistant/agent/issues/125)\n 10β†’- **Title**: Invalid input: expected string, received object\n 11β†’- **Labels**: bug\n 12β†’- **Version**: 0.8.5\n 13β†’\n 14β†’## Environment Comparison\n 15β†’\n 16β†’| Factor | macOS (Working) | Ubuntu (Failing) |\n 17β†’|--------|-----------------|------------------|\n 18β†’| Bun version | 1.2.20 | 1.3.6 |\n 19β†’| Platform | darwin | linux |\n 20β†’| AI SDK version | 6.0.0-beta.99 | 6.0.0-beta.99 |\n 21β†’\n 22β†’## Symptoms\n 23β†’\n 24β†’### Error Message\n 25β†’\n 26β†’```\n 27β†’ZodError: [\n 28β†’ {\n 29β†’ \"expected\": \"string\",\n 30β†’ \"code\": \"invalid_type\",\n 31β†’ \"path\": [\"finish\"],\n 32β†’ \"message\": \"Invalid input: expected string, received object\"\n 33β†’ }\n 34β†’]\n 35β†’```\n 36β†’\n 37β†’### Verbose Logging Shows\n 38β†’\n 39β†’On Ubuntu (Bun 1.3.6):\n 40β†’```json\n 41β†’{\n 42β†’ \"context\": \"inputTokens\",\n 43β†’ \"valueType\": \"object\",\n 44β†’ \"value\": \"{\\\"total\\\":8707,\\\"noCache\\\":6339,\\\"cacheRead\\\":2368}\",\n 45β†’ \"error\": \"Conversion to number resulted in NaN\"\n 46β†’}\n 47β†’```\n 48β†’\n 49β†’On macOS (Bun 1.2.20):\n 50β†’```json\n 51β†’{\n 52β†’ \"context\": \"inputTokens\",\n 53β†’ \"valueType\": \"number\",\n 54β†’ \"value\": \"8707\"\n 55β†’}\n 56β†’```\n 57β†’\n 58β†’## Root Cause Analysis\n 59β†’\n 60β†’### Primary Issues\n 61β†’\n 62β†’1. **Token Count Format Difference**: Different Bun versions (or underlying platform differences) cause the AI SDK to return token counts in different formats:\n 63β†’ - macOS: Plain numbers (`inputTokens: 8707`)\n 64β†’ - Ubuntu: Objects with nested structure (`inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 }`)\n 65β†’\n 66β†’2. **finishReason Format Difference**: The `finishReason` field was similarly affected:\n 67β†’ - macOS: Plain string (`\"stop\"`)\n 68β†’ - Ubuntu: Object (`{ unified: \"tool-calls\", raw: \"tool_calls\" }`)\n 69β†’\n 70β†’### Technical Details\n 71β†’\n 72β†’The issue occurred in two places:\n 73β†’\n 74β†’1. **`src/session/index.ts` - `toNumber()` function**: The function used `Number(value)` which returns `NaN` for objects, causing token counts to be incorrectly set to 0.\n 75β†’\n 76β†’2. **`src/session/processor.ts` - finish-step handling**: The code directly assigned `value.finishReason` to schema fields expecting strings, causing Zod validation to fail when it received an object.\n 77β†’\n 78β†’### Related Issues\n 79β†’\n 80β†’- AI SDK Issue [#10291](https://github.com/vercel/ai/issues/10291): Type validation error on finish event in v6.0.0-beta.99\n 81β†’- This is a known schema mismatch between server and client in the AI SDK beta\n 82β†’\n 83β†’## Solution\n 84β†’\n 85β†’### Fix 1: Enhanced `toNumber()` Function\n 86β†’\n 87β†’Added logic to extract the `total` field from objects:\n 88β†’\n 89β†’```typescript\n 90β†’// Handle objects with a 'total' field\n 91β†’if (\n 92β†’ typeof value === 'object' &&\n 93β†’ value !== null &&\n 94β†’ 'total' in value &&\n 95β†’ typeof (value as { total: unknown }).total === 'number'\n 96β†’) {\n 97β†’ const result = (value as { total: number }).total;\n 98β†’ return result;\n 99β†’}\n 100β†’```\n 101β†’\n 102β†’### Fix 2: New `toFinishReason()` Function\n 103β†’\n 104β†’Added a helper function to safely convert `finishReason` to a string:\n 105β†’\n 106β†’```typescript\n 107β†’export const toFinishReason = (value: unknown): string => {\n 108β†’ if (typeof value === 'string') return value;\n 109β†’ if (value === undefined || value === null) return 'unknown';\n 110β†’\n 111β†’ if (typeof value === 'object') {\n 112β†’ const obj = value as Record<string, unknown>;\n 113β†’ if (typeof obj.type === 'string') return obj.type;\n 114β†’ if (typeof obj.finishReason === 'string') return obj.finishReason;\n 115β†’ if (typeof obj.reason === 'string') return obj.reason;\n 116β†’ return JSON.stringify(value);\n 117β†’ }\n 118β†’\n 119β†’ return String(value);\n 120β†’};\n 121β†’```\n 122β†’\n 123β†’### Fix 3: Updated `processor.ts`\n 124β†’\n 125β†’Used the new `toFinishReason()` function in the finish-step handler:\n 126β†’\n 127β†’```typescript\n 128β†’const finishReason = Session.toFinishReason(value.finishReason);\n 129β†’input.assistantMessage.finish = finishReason;\n 130β†’```\n 131β†’\n 132β†’## Testing\n 133β†’\n 134β†’Added comprehensive tests in `tests/session-usage.test.ts`:\n 135β†’\n 136β†’1. Tests for `toNumber()` with objects containing `total` field\n 137β†’2. Tests for `toFinishReason()` with various input types (string, object, null, undefined)\n 138β†’3. Integration tests for `getUsage()` with object token formats\n 139β†’\n 140β†’All 69 tests pass.\n 141β†’\n 142β†’## Timeline\n 143β†’\n 144β†’1. User reports issue with Ubuntu server (Bun 1.3.6) while macOS (Bun 1.2.20) works\n 145β†’2. Investigation reveals AI SDK returns different data structures across platforms\n 146β†’3. Root cause identified: missing handling for object-formatted token counts and finish reasons\n 147β†’4. Fix implemented with backward-compatible handling of both formats\n 148β†’5. Tests added to prevent regression\n 149β†’\n 150β†’## Lessons Learned\n 151β†’\n 152β†’1. **Cross-platform testing**: Different runtimes/versions can cause subtle data structure differences\n 153β†’2. **Defensive parsing**: When consuming external API data, always handle unexpected formats gracefully\n 154β†’3. **Verbose logging**: The existing verbose logging infrastructure made debugging straightforward\n 155β†’4. **AI SDK beta instability**: Beta versions of AI SDK may have schema inconsistencies\n 156β†’\n 157β†’## Files Modified\n 158β†’\n 159β†’- `js/src/session/index.ts` - Enhanced `toNumber()`, added `toFinishReason()`\n 160β†’- `js/src/session/processor.ts` - Updated finish-step handling\n 161β†’- `js/tests/session-usage.test.ts` - Added new test cases\n 162β†’\n 163β†’## References\n 164β†’\n 165β†’- [AI SDK 6.0 Migration Guide](https://ai-sdk.dev/docs/migration-guides/migration-guide-6-0)\n 166β†’- [Vercel AI SDK Issue #10291](https://github.com/vercel/ai/issues/10291)\n 167β†’- [Previous related fix for issue #119](https://github.com/link-assistant/agent/issues/119)\n 168β†’\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
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"content": "# Case Study: Issue #125 - Invalid input: expected string, received object\n\n## Summary\n\nThis case study documents the investigation and resolution of a platform-specific bug where the agent CLI would crash with a Zod validation error on Ubuntu servers but work correctly on macOS.\n\n## Issue Details\n\n- **Issue**: [#125](https://github.com/link-assistant/agent/issues/125)\n- **Title**: Invalid input: expected string, received object\n- **Labels**: bug\n- **Version**: 0.8.5\n\n## Environment Comparison\n\n| Factor | macOS (Working) | Ubuntu (Failing) |\n|--------|-----------------|------------------|\n| Bun version | 1.2.20 | 1.3.6 |\n| Platform | darwin | linux |\n| AI SDK version | 6.0.0-beta.99 | 6.0.0-beta.99 |\n\n## Symptoms\n\n### Error Message\n\n```\nZodError: [\n {\n \"expected\": \"string\",\n \"code\": \"invalid_type\",\n \"path\": [\"finish\"],\n \"message\": \"Invalid input: expected string, received object\"\n }\n]\n```\n\n### Verbose Logging Shows\n\nOn Ubuntu (Bun 1.3.6):\n```json\n{\n \"context\": \"inputTokens\",\n \"valueType\": \"object\",\n \"value\": \"{\\\"total\\\":8707,\\\"noCache\\\":6339,\\\"cacheRead\\\":2368}\",\n \"error\": \"Conversion to number resulted in NaN\"\n}\n```\n\nOn macOS (Bun 1.2.20):\n```json\n{\n \"context\": \"inputTokens\",\n \"valueType\": \"number\",\n \"value\": \"8707\"\n}\n```\n\n## Root Cause Analysis\n\n### Primary Issues\n\n1. **Token Count Format Difference**: Different Bun versions (or underlying platform differences) cause the AI SDK to return token counts in different formats:\n - macOS: Plain numbers (`inputTokens: 8707`)\n - Ubuntu: Objects with nested structure (`inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 }`)\n\n2. **finishReason Format Difference**: The `finishReason` field was similarly affected:\n - macOS: Plain string (`\"stop\"`)\n - Ubuntu: Object (`{ unified: \"tool-calls\", raw: \"tool_calls\" }`)\n\n### Technical Details\n\nThe issue occurred in two places:\n\n1. **`src/session/index.ts` - `toNumber()` function**: The function used `Number(value)` which returns `NaN` for objects, causing token counts to be incorrectly set to 0.\n\n2. **`src/session/processor.ts` - finish-step handling**: The code directly assigned `value.finishReason` to schema fields expecting strings, causing Zod validation to fail when it received an object.\n\n### Related Issues\n\n- AI SDK Issue [#10291](https://github.com/vercel/ai/issues/10291): Type validation error on finish event in v6.0.0-beta.99\n- This is a known schema mismatch between server and client in the AI SDK beta\n\n## Solution\n\n### Fix 1: Enhanced `toNumber()` Function\n\nAdded logic to extract the `total` field from objects:\n\n```typescript\n// Handle objects with a 'total' field\nif (\n typeof value === 'object' &&\n value !== null &&\n 'total' in value &&\n typeof (value as { total: unknown }).total === 'number'\n) {\n const result = (value as { total: number }).total;\n return result;\n}\n```\n\n### Fix 2: New `toFinishReason()` Function\n\nAdded a helper function to safely convert `finishReason` to a string:\n\n```typescript\nexport const toFinishReason = (value: unknown): string => {\n if (typeof value === 'string') return value;\n if (value === undefined || value === null) return 'unknown';\n\n if (typeof value === 'object') {\n const obj = value as Record<string, unknown>;\n if (typeof obj.type === 'string') return obj.type;\n if (typeof obj.finishReason === 'string') return obj.finishReason;\n if (typeof obj.reason === 'string') return obj.reason;\n return JSON.stringify(value);\n }\n\n return String(value);\n};\n```\n\n### Fix 3: Updated `processor.ts`\n\nUsed the new `toFinishReason()` function in the finish-step handler:\n\n```typescript\nconst finishReason = Session.toFinishReason(value.finishReason);\ninput.assistantMessage.finish = finishReason;\n```\n\n## Testing\n\nAdded comprehensive tests in `tests/session-usage.test.ts`:\n\n1. Tests for `toNumber()` with objects containing `total` field\n2. Tests for `toFinishReason()` with various input types (string, object, null, undefined)\n3. Integration tests for `getUsage()` with object token formats\n\nAll 69 tests pass.\n\n## Timeline\n\n1. User reports issue with Ubuntu server (Bun 1.3.6) while macOS (Bun 1.2.20) works\n2. Investigation reveals AI SDK returns different data structures across platforms\n3. Root cause identified: missing handling for object-formatted token counts and finish reasons\n4. Fix implemented with backward-compatible handling of both formats\n5. Tests added to prevent regression\n\n## Lessons Learned\n\n1. **Cross-platform testing**: Different runtimes/versions can cause subtle data structure differences\n2. **Defensive parsing**: When consuming external API data, always handle unexpected formats gracefully\n3. **Verbose logging**: The existing verbose logging infrastructure made debugging straightforward\n4. **AI SDK beta instability**: Beta versions of AI SDK may have schema inconsistencies\n\n## Files Modified\n\n- `js/src/session/index.ts` - Enhanced `toNumber()`, added `toFinishReason()`\n- `js/src/session/processor.ts` - Updated finish-step handling\n- `js/tests/session-usage.test.ts` - Added new test cases\n\n## References\n\n- [AI SDK 6.0 Migration Guide](https://ai-sdk.dev/docs/migration-guides/migration-guide-6-0)\n- [Vercel AI SDK Issue #10291](https://github.com/vercel/ai/issues/10291)\n- [Previous related fix for issue #119](https://github.com/link-assistant/agent/issues/119)\n",
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"content": " 1β†’# Case Study: Issue #119 - DecimalError Invalid Argument in getUsage()\n 2β†’\n 3β†’## Summary\n 4β†’\n 5β†’The `Session.getUsage()` function crashes with a `[DecimalError] Invalid argument: [object Object]` error when token usage data from certain AI providers (e.g., `opencode/grok-code`) contains unexpected values like objects, `NaN`, or `Infinity` instead of numeric values. The `decimal.js` library throws this error when passed non-numeric values.\n 6β†’\n 7β†’## Timeline of Events\n 8β†’\n 9β†’### Discovery and Analysis\n 10β†’\n 11β†’| Date | Event |\n 12β†’|------|-------|\n 13β†’| Dec 25, 2025 | Upstream sst/opencode#6161 reported similar DecimalError issue in v0.3.58 |\n 14β†’| Jan 11, 2026 | Issue #119 reported in link-assistant/agent with `opencode/grok-code` model |\n 15β†’| Jan 11, 2026 | Root cause identified: missing `safe()` wrapper function from upstream OpenCode |\n 16β†’\n 17β†’### Error Manifestation\n 18β†’\n 19β†’The error appears during `step_finish` events in `processor.ts:222-226` when calculating token costs:\n 20β†’\n 21β†’```typescript\n 22β†’case 'finish-step':\n 23β†’ const usage = Session.getUsage({\n 24β†’ model: input.model,\n 25β†’ usage: value.usage, // <-- May contain objects or non-finite numbers\n 26β†’ metadata: value.providerMetadata,\n 27β†’ });\n 28β†’```\n 29β†’\n 30β†’## Root Cause Analysis\n 31β†’\n 32β†’### Primary Root Cause: Missing safe() wrapper function\n 33β†’\n 34β†’The upstream OpenCode repository has a `safe()` wrapper function that sanitizes numeric inputs before passing them to `Decimal.js`:\n 35β†’\n 36β†’**Upstream OpenCode (current implementation):**\n 37β†’```typescript\n 38β†’const safe = (value: number) => {\n 39β†’ if (!Number.isFinite(value)) return 0\n 40β†’ return value\n 41β†’}\n 42β†’\n 43β†’const tokens = {\n 44β†’ input: safe(adjustedInputTokens),\n 45β†’ output: safe(input.usage.outputTokens ?? 0),\n 46β†’ reasoning: safe(input.usage?.reasoningTokens ?? 0),\n 47β†’ cache: {\n 48β†’ write: safe(/* cache write tokens */),\n 49β†’ read: safe(cachedInputTokens),\n 50β†’ },\n 51β†’};\n 52β†’\n 53β†’return {\n 54β†’ cost: safe(new Decimal(0).add(...).toNumber()),\n 55β†’ tokens,\n 56β†’};\n 57β†’```\n 58β†’\n 59β†’**Current agent implementation (vulnerable):**\n 60β†’```typescript\n 61β†’// No safe() wrapper - values passed directly to Decimal\n 62β†’const tokens = {\n 63β†’ input: adjustedInputTokens, // Could be NaN, Infinity, or object\n 64β†’ output: input.usage.outputTokens ?? 0,\n 65β†’ ...\n 66β†’};\n 67β†’\n 68β†’return {\n 69β†’ cost: new Decimal(0).add(new Decimal(tokens.input)...).toNumber(), // CRASH!\n 70β†’ tokens,\n 71β†’};\n 72β†’```\n 73β†’\n 74β†’### Why Objects Appear in Token Data\n 75β†’\n 76β†’Some AI providers return usage data with unexpected structures:\n 77β†’\n 78β†’1. **Malformed API responses**: Some providers return objects like `{ count: 100 }` instead of raw numbers\n 79β†’2. **NaN from arithmetic**: Operations like `0/0` or `undefined - number` produce NaN\n 80β†’3. **Infinity**: Very large token counts or division edge cases\n 81β†’4. **Null coalescing gaps**: The `??` operator doesn't catch `NaN` or `Infinity` (only `null`/`undefined`)\n 82β†’\n 83β†’### Error Chain Diagram\n 84β†’\n 85β†’```\n 86β†’β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\n 87β†’β”‚ AI Provider Returns Usage Data β”‚\n 88β†’β”‚ (May contain objects, NaN, or Infinity in token fields) β”‚\n 89β†’β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n 90β†’ β”‚\n 91β†’ β–Ό\n 92β†’β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\n 93β†’β”‚ processor.ts 'finish-step' event β”‚\n 94β†’β”‚ calls Session.getUsage() with raw usage data β”‚\n 95β†’β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n 96β†’ β”‚\n 97β†’ β–Ό\n 98β†’β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\n 99β†’β”‚ getUsage() builds tokens object β”‚\n 100β†’β”‚ adjustedInputTokens = (usage.inputTokens ?? 0) - cached β”‚\n 101β†’β”‚ (NaN if inputTokens is NaN, Infinity, or object) β”‚\n 102β†’β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n 103β†’ β”‚\n 104β†’ β–Ό\n 105β†’β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\n 106β†’β”‚ Decimal.js constructor receives non-numeric value β”‚\n 107β†’β”‚ new Decimal([object Object]) throws error β”‚\n 108β†’β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n 109β†’ β”‚\n 110β†’ β–Ό\n 111β†’β”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\n 112β†’β”‚ [DecimalError] Invalid argument: [object Object] β”‚\n 113β†’β”‚ Uncaught exception crashes the session β”‚\n 114β†’β””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n 115β†’```\n 116β†’\n 117β†’## Impact\n 118β†’\n 119β†’1. **Session crashes**: Users lose their conversation context when the error occurs\n 120β†’2. **Model output truncation**: Error may appear mid-response, cutting off content\n 121β†’3. **Provider incompatibility**: Certain models (e.g., `opencode/grok-code`) become unusable\n 122β†’4. **No graceful degradation**: Cost tracking failure should not crash the entire session\n 123β†’\n 124β†’## Solutions\n 125β†’\n 126β†’### Implemented Fix 1: Add safe() wrapper function\n 127β†’\n 128β†’Add the `safe()` helper function to sanitize all numeric inputs:\n 129β†’\n 130β†’```typescript\n 131β†’const safe = (value: number) => {\n 132β†’ if (!Number.isFinite(value)) return 0;\n 133β†’ return value;\n 134β†’};\n 135β†’```\n 136β†’\n 137β†’Apply it to all token values and the final cost calculation result.\n 138β†’\n 139β†’### Implemented Fix 2: Try-catch wrapper for cost calculation\n 140β†’\n 141β†’Add defensive error handling around the Decimal calculations:\n 142β†’\n 143β†’```typescript\n 144β†’try {\n 145β†’ // Decimal calculations\n 146β†’ cost = new Decimal(0).add(...).toNumber();\n 147β†’} catch (error) {\n 148β†’ log.warn('Failed to calculate cost', { error, tokens });\n 149β†’ cost = 0;\n 150β†’}\n 151β†’```\n 152β†’\n 153β†’This ensures that even if an unexpected value slips through `safe()`, the session won't crash.\n 154β†’\n 155β†’## Verification\n 156β†’\n 157β†’### Unit Tests Added\n 158β†’\n 159β†’1. `safe() returns 0 for NaN`\n 160β†’2. `safe() returns 0 for Infinity`\n 161β†’3. `safe() returns 0 for -Infinity`\n 162β†’4. `safe() returns original value for finite numbers`\n 163β†’5. `safe() handles edge case: 0`\n 164β†’6. `getUsage() handles NaN in inputTokens`\n 165β†’7. `getUsage() handles object-like values gracefully`\n 166β†’8. `getUsage() handles Infinity in outputTokens`\n 167β†’9. `getUsage() calculates correctly with valid data`\n 168β†’\n 169β†’### Experiment Script\n 170β†’\n 171β†’An experiment script (`experiments/issue-119-decimal-error/`) demonstrates the error reproduction and fix verification.\n 172β†’\n 173β†’## Related Issues\n 174β†’\n 175β†’- **Upstream**: [sst/opencode#6161](https://github.com/sst/opencode/issues/6161) - Similar DecimalError bug, resolved in newer versions\n 176β†’- **Cross-reference**: [link-assistant/hive-mind#1112](https://github.com/link-assistant/hive-mind/issues/1112) - Related report\n 177β†’\n 178β†’## Files Affected\n 179β†’\n 180β†’| File | Issue | Fix Required |\n 181β†’|------|-------|--------------|\n 182β†’| `js/src/session/index.ts` | Missing safe() wrapper for token values | Add safe() function and apply to all numeric inputs |\n 183β†’| `js/tests/session-usage.test.ts` | No unit tests for getUsage edge cases | Add comprehensive unit tests |\n 184β†’\n 185β†’## Lessons Learned\n 186β†’\n 187β†’1. **Validate external data**: AI provider responses should be treated as untrusted input\n 188β†’2. **Use defensive wrappers**: The `safe()` pattern prevents cascading failures from bad data\n 189β†’3. **Don't let secondary features crash primary flow**: Cost calculation failure should not terminate sessions\n 190β†’4. **Keep forks updated**: The upstream fix existed; maintaining sync prevents such regressions\n 191β†’5. **Test edge cases**: Unit tests for NaN, Infinity, and object inputs would have caught this earlier\n 192β†’\n 193β†’## References\n 194β†’\n 195β†’- [GitHub Issue #119](https://github.com/link-assistant/agent/issues/119)\n 196β†’- [Upstream sst/opencode#6161](https://github.com/sst/opencode/issues/6161)\n 197β†’- [Upstream fix in session/index.ts](https://github.com/sst/opencode/blob/dev/packages/opencode/src/session/index.ts)\n 198β†’- [decimal.js documentation](https://mikemcl.github.io/decimal.js/)\n 199β†’- [Number.isFinite() MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isFinite)\n 200β†’\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
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"content": "# Case Study: Issue #119 - DecimalError Invalid Argument in getUsage()\n\n## Summary\n\nThe `Session.getUsage()` function crashes with a `[DecimalError] Invalid argument: [object Object]` error when token usage data from certain AI providers (e.g., `opencode/grok-code`) contains unexpected values like objects, `NaN`, or `Infinity` instead of numeric values. The `decimal.js` library throws this error when passed non-numeric values.\n\n## Timeline of Events\n\n### Discovery and Analysis\n\n| Date | Event |\n|------|-------|\n| Dec 25, 2025 | Upstream sst/opencode#6161 reported similar DecimalError issue in v0.3.58 |\n| Jan 11, 2026 | Issue #119 reported in link-assistant/agent with `opencode/grok-code` model |\n| Jan 11, 2026 | Root cause identified: missing `safe()` wrapper function from upstream OpenCode |\n\n### Error Manifestation\n\nThe error appears during `step_finish` events in `processor.ts:222-226` when calculating token costs:\n\n```typescript\ncase 'finish-step':\n const usage = Session.getUsage({\n model: input.model,\n usage: value.usage, // <-- May contain objects or non-finite numbers\n metadata: value.providerMetadata,\n });\n```\n\n## Root Cause Analysis\n\n### Primary Root Cause: Missing safe() wrapper function\n\nThe upstream OpenCode repository has a `safe()` wrapper function that sanitizes numeric inputs before passing them to `Decimal.js`:\n\n**Upstream OpenCode (current implementation):**\n```typescript\nconst safe = (value: number) => {\n if (!Number.isFinite(value)) return 0\n return value\n}\n\nconst tokens = {\n input: safe(adjustedInputTokens),\n output: safe(input.usage.outputTokens ?? 0),\n reasoning: safe(input.usage?.reasoningTokens ?? 0),\n cache: {\n write: safe(/* cache write tokens */),\n read: safe(cachedInputTokens),\n },\n};\n\nreturn {\n cost: safe(new Decimal(0).add(...).toNumber()),\n tokens,\n};\n```\n\n**Current agent implementation (vulnerable):**\n```typescript\n// No safe() wrapper - values passed directly to Decimal\nconst tokens = {\n input: adjustedInputTokens, // Could be NaN, Infinity, or object\n output: input.usage.outputTokens ?? 0,\n ...\n};\n\nreturn {\n cost: new Decimal(0).add(new Decimal(tokens.input)...).toNumber(), // CRASH!\n tokens,\n};\n```\n\n### Why Objects Appear in Token Data\n\nSome AI providers return usage data with unexpected structures:\n\n1. **Malformed API responses**: Some providers return objects like `{ count: 100 }` instead of raw numbers\n2. **NaN from arithmetic**: Operations like `0/0` or `undefined - number` produce NaN\n3. **Infinity**: Very large token counts or division edge cases\n4. **Null coalescing gaps**: The `??` operator doesn't catch `NaN` or `Infinity` (only `null`/`undefined`)\n\n### Error Chain Diagram\n\n```\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ AI Provider Returns Usage Data β”‚\nβ”‚ (May contain objects, NaN, or Infinity in token fields) β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n β”‚\n β–Ό\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ processor.ts 'finish-step' event β”‚\nβ”‚ calls Session.getUsage() with raw usage data β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n β”‚\n β–Ό\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ getUsage() builds tokens object β”‚\nβ”‚ adjustedInputTokens = (usage.inputTokens ?? 0) - cached β”‚\nβ”‚ (NaN if inputTokens is NaN, Infinity, or object) β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n β”‚\n β–Ό\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ Decimal.js constructor receives non-numeric value β”‚\nβ”‚ new Decimal([object Object]) throws error β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n β”‚\n β–Ό\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ [DecimalError] Invalid argument: [object Object] β”‚\nβ”‚ Uncaught exception crashes the session β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n```\n\n## Impact\n\n1. **Session crashes**: Users lose their conversation context when the error occurs\n2. **Model output truncation**: Error may appear mid-response, cutting off content\n3. **Provider incompatibility**: Certain models (e.g., `opencode/grok-code`) become unusable\n4. **No graceful degradation**: Cost tracking failure should not crash the entire session\n\n## Solutions\n\n### Implemented Fix 1: Add safe() wrapper function\n\nAdd the `safe()` helper function to sanitize all numeric inputs:\n\n```typescript\nconst safe = (value: number) => {\n if (!Number.isFinite(value)) return 0;\n return value;\n};\n```\n\nApply it to all token values and the final cost calculation result.\n\n### Implemented Fix 2: Try-catch wrapper for cost calculation\n\nAdd defensive error handling around the Decimal calculations:\n\n```typescript\ntry {\n // Decimal calculations\n cost = new Decimal(0).add(...).toNumber();\n} catch (error) {\n log.warn('Failed to calculate cost', { error, tokens });\n cost = 0;\n}\n```\n\nThis ensures that even if an unexpected value slips through `safe()`, the session won't crash.\n\n## Verification\n\n### Unit Tests Added\n\n1. `safe() returns 0 for NaN`\n2. `safe() returns 0 for Infinity`\n3. `safe() returns 0 for -Infinity`\n4. `safe() returns original value for finite numbers`\n5. `safe() handles edge case: 0`\n6. `getUsage() handles NaN in inputTokens`\n7. `getUsage() handles object-like values gracefully`\n8. `getUsage() handles Infinity in outputTokens`\n9. `getUsage() calculates correctly with valid data`\n\n### Experiment Script\n\nAn experiment script (`experiments/issue-119-decimal-error/`) demonstrates the error reproduction and fix verification.\n\n## Related Issues\n\n- **Upstream**: [sst/opencode#6161](https://github.com/sst/opencode/issues/6161) - Similar DecimalError bug, resolved in newer versions\n- **Cross-reference**: [link-assistant/hive-mind#1112](https://github.com/link-assistant/hive-mind/issues/1112) - Related report\n\n## Files Affected\n\n| File | Issue | Fix Required |\n|------|-------|--------------|\n| `js/src/session/index.ts` | Missing safe() wrapper for token values | Add safe() function and apply to all numeric inputs |\n| `js/tests/session-usage.test.ts` | No unit tests for getUsage edge cases | Add comprehensive unit tests |\n\n## Lessons Learned\n\n1. **Validate external data**: AI provider responses should be treated as untrusted input\n2. **Use defensive wrappers**: The `safe()` pattern prevents cascading failures from bad data\n3. **Don't let secondary features crash primary flow**: Cost calculation failure should not terminate sessions\n4. **Keep forks updated**: The upstream fix existed; maintaining sync prevents such regressions\n5. **Test edge cases**: Unit tests for NaN, Infinity, and object inputs would have caught this earlier\n\n## References\n\n- [GitHub Issue #119](https://github.com/link-assistant/agent/issues/119)\n- [Upstream sst/opencode#6161](https://github.com/sst/opencode/issues/6161)\n- [Upstream fix in session/index.ts](https://github.com/sst/opencode/blob/dev/packages/opencode/src/session/index.ts)\n- [decimal.js documentation](https://mikemcl.github.io/decimal.js/)\n- [Number.isFinite() MDN](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/isFinite)\n",
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"text": "I can see the pattern now. Let me analyze the current issue more deeply.\n\nLooking at the issue logs, I see these error messages:\n1. `\"context\":\"cachedInputTokens\",...,\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"`\n2. `\"context\":\"cacheWriteTokens\",...,\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"`\n3. `\"context\":\"reasoningTokens\",...,\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"`\n\nThese are not actual errors - they're debug logs showing that the function is handling undefined values and returning NaN. The `safeNum` helper then converts NaN to 0. However, the issue is that:\n\n1. The debug log says \"toNumber error - returning NaN\" which looks alarming\n2. The user sees this as a bug because of the verbose logging\n3. The current behavior works but could be cleaner - `undefined` should simply return `0` instead of going through the error path\n\nLet me check if there's actually a problem or if this is just about improving the debug logging:"
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\\\"pending\\\",\\n \\\"priority\\\": \\\"medium\\\",\\n \\\"id\\\": \\\"remove_magic_numbers\\\"\\n },\\n {\\n \\\"content\\\": \\\"Ensure functions are <=30 lines, use early exits, avoid deep nesting\\\",\\n \\\"status\\\": \\\"pending\\\",\\n \\\"priority\\\": \\\"medium\\\",\\n \\\"id\\\": \\\"function_length_nesting\\\"\\n },\\n {\\n \\\"content\\\": \\\"Separate UI, Logic, Data layers; remove business logic from UI\\\",\\n \\\"status\\\": \\\"pending\\\",\\n \\\"priority\\\": \\\"high\\\",\\n \\\"id\\\": \\\"separate_concerns\\\"\\n },\\n {\\n \\\"content\\\": \\\"Add input validation and error protection to functions\\\",\\n \\\"status\\\": \\\"pending\\\",\\n \\\"priority\\\": \\\"medium\\\",\\n \\\"id\\\": \\\"add_error_handling\\\"\\n },\\n {\\n \\\"content\\\": \\\"Test refactored code functionality\\\",\\n \\\"status\\\": \\\"pending\\\",\\n \\\"priority\\\": \\\"high\\\",\\n \\\"id\\\": \\\"test_refactored_code\\\"\\n },\\n {\\n \\\"content\\\": \\\"Commit changes in atomic steps to PR branch\\\",\\n \\\"status\\\": \\\"pending\\\",\\n \\\"priority\\\": \\\"medium\\\",\\n \\\"id\\\": \\\"commit_changes\\\"\\n },\\n {\\n \\\"content\\\": \\\"Update PR description and ensure all requirements met\\\",\\n \\\"status\\\": \\\"pending\\\",\\n \\\"priority\\\": \\\"low\\\",\\n \\\"id\\\": \\\"update_pr\\\"\\n }\\n ]\\n },\\n \\\"time\\\": {\\n \\\"start\\\": 1769022031407,\\n \\\"end\\\": 1769022031409\\n }\\n }\\n 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\\\"timestamp\\\": 1769022031446,\\n \\\"sessionID\\\": \\\"ses_41e1226edffeaFh6ulUwBeXUvk\\\",\\n \\\"part\\\": {\\n \\\"id\\\": \\\"prt_be1ee063d001DyjkNWRmRJj6d9\\\",\\n \\\"sessionID\\\": \\\"ses_41e1226edffeaFh6ulUwBeXUvk\\\",\\n \\\"messageID\\\": \\\"msg_be1edd9bc001XZt2BuF85btbsp\\\",\\n \\\"type\\\": \\\"step-finish\\\",\\n \\\"reason\\\": \\\"{\\\\\\\"unified\\\\\\\":\\\\\\\"tool-calls\\\\\\\",\\\\\\\"raw\\\\\\\":\\\\\\\"tool_calls\\\\\\\"}\\\",\\n \\\"snapshot\\\": \\\"fb2c2307055334dc86395a7464836f4a3eacd4f4\\\",\\n \\\"cost\\\": 0,\\n \\\"tokens\\\": {\\n \\\"input\\\": 12703,\\n \\\"output\\\": 562,\\n \\\"reasoning\\\": 0,\\n \\\"cache\\\": {\\n \\\"read\\\": 0,\\n \\\"write\\\": 0\\n }\\n }\\n }\\n}\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.447Z\\\",\\\"service\\\":\\\"bus\\\",\\\"type\\\":\\\"message.updated\\\",\\\"message\\\":\\\"publishing\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.482Z\\\",\\\"service\\\":\\\"bus\\\",\\\"type\\\":\\\"message.updated\\\",\\\"message\\\":\\\"publishing\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.483Z\\\",\\\"service\\\":\\\"bus\\\",\\\"type\\\":\\\"message.updated\\\",\\\"message\\\":\\\"publishing\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.484Z\\\",\\\"service\\\":\\\"session.prompt\\\",\\\"step\\\":1,\\\"sessionID\\\":\\\"ses_41e1226edffeaFh6ulUwBeXUvk\\\",\\\"message\\\":\\\"loop\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.493Z\\\",\\\"service\\\":\\\"bus\\\",\\\"type\\\":\\\"message.updated\\\",\\\"message\\\":\\\"publishing\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.496Z\\\",\\\"service\\\":\\\"session.prompt\\\",\\\"sessionID\\\":\\\"ses_41e1226edffeaFh6ulUwBeXUvk\\\",\\\"message\\\":\\\"exiting loop\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.496Z\\\",\\\"service\\\":\\\"session.compaction\\\",\\\"message\\\":\\\"pruning\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.497Z\\\",\\\"service\\\":\\\"bus\\\",\\\"type\\\":\\\"session.updated\\\",\\\"message\\\":\\\"publishing\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.497Z\\\",\\\"service\\\":\\\"bus\\\",\\\"type\\\":\\\"session.diff\\\",\\\"message\\\":\\\"publishing\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.498Z\\\",\\\"service\\\":\\\"session.prompt\\\",\\\"sessionID\\\":\\\"ses_41e1226edffeaFh6ulUwBeXUvk\\\",\\\"message\\\":\\\"cancel\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.498Z\\\",\\\"service\\\":\\\"bus\\\",\\\"type\\\":\\\"session.status\\\",\\\"message\\\":\\\"publishing\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.498Z\\\",\\\"service\\\":\\\"bus\\\",\\\"type\\\":\\\"session.idle\\\",\\\"message\\\":\\\"publishing\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.498Z\\\",\\\"service\\\":\\\"bus\\\",\\\"type\\\":\\\"*\\\",\\\"message\\\":\\\"unsubscribing\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.501Z\\\",\\\"service\\\":\\\"bus\\\",\\\"type\\\":\\\"*\\\",\\\"message\\\":\\\"unsubscribing\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.501Z\\\",\\\"service\\\":\\\"default\\\",\\\"directory\\\":\\\"/tmp/gh-issue-solver-1769000822352\\\",\\\"message\\\":\\\"disposing instance\\\"}}\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.501Z\\\",\\\"service\\\":\\\"state\\\",\\\"key\\\":\\\"/tmp/gh-issue-solver-1769000822352\\\",\\\"message\\\":\\\"waiting for state disposal to complete\\\"}}\\n\\n{\\\"log\\\":{\\\"level\\\":\\\"info\\\",\\\"timestamp\\\":\\\"2026-01-21T19:00:31.501Z\\\",\\\"service\\\":\\\"state\\\",\\\"key\\\":\\\"/tmp/gh-issue-solver-1769000822352\\\",\\\"message\\\":\\\"state disposal completed\\\"}}\\n\\nhive@vmi2955137:~$ \\n```\\n\\nPlease download all logs and data related about the issue to this repository, make sure we compile that data to `./docs/case-studies/issue-{id}` folder, and use it to do deep case study analysis (also make sure to search online for additional facts and data), in which we will reconstruct timeline/sequence of events, find root causes of the problem, and propose possible solutions.\",\"comments\":[],\"createdAt\":\"2026-01-21T19:03:14Z\",\"labels\":[{\"id\":\"LA_kwDOQYTy3M8AAAACQHoi-w\",\"name\":\"bug\",\"description\":\"Something isn't working\",\"color\":\"d73a4a\"}],\"number\":127,\"title\":\"Cannot convert undefined to number: toNumber error - returning NaN\"}\n 2β†’\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"}]},"parent_tool_use_id":null,"session_id":"550af937-3a6e-4e2d-b006-ae2e73646e47","uuid":"8f8ebf8b-62fe-4483-af5e-6880259647cb","tool_use_result":{"type":"text","file":{"filePath":"/tmp/gh-issue-solver-1769031083044/docs/case-studies/issue-127/data/issue-127.json","content":"{\"author\":{\"id\":\"MDQ6VXNlcjE0MzE5MDQ=\",\"is_bot\":false,\"login\":\"konard\",\"name\":\"Konstantin Diachenko\"},\"body\":\"```\\nhive@vmi2955137:~$ bun install -g @link-assistant/agent\\nbun add v1.3.6 (d530ed99)\\n\\ninstalled @link-assistant/[email protected] with binaries:\\n - agent\\n\\n14 packages installed [1.73s]\\n\\nhive@vmi2955137:~$ (cd \\\"/tmp/gh-issue-solver-1769000822352\\\" && cat \\\"/tmp/agent_prompt_1769000865749_678166.txt\\\" | agent --model opencode/grok-code --verbose)\\n{\\n \\\"type\\\": \\\"status\\\",\\n \\\"mode\\\": \\\"stdin-stream\\\",\\n \\\"message\\\": \\\"Agent CLI in continuous listening mode. Accepts JSON and plain text input.\\\",\\n \\\"hint\\\": \\\"Press CTRL+C to exit. 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"text": "Now let me analyze the issue deeply. The key insight is:\n\n1. The issue is that `toNumber` logs `\"toNumber error - returning NaN\"` when receiving `undefined`\n2. Looking at the raw usage data in the logs: `\"inputTokens\":{\"total\":12703,\"noCache\":12511,\"cacheRead\":192}`\n3. The provider returns `cachedInputTokens` as `undefined`, but the actual cache data is inside `inputTokens.cacheRead`\n4. Similarly, `reasoningTokens` is `undefined` even though the data shows `\"reasoning\":1367` inside `outputTokens`\n\nThe real issue is that the code is checking for `usage.cachedInputTokens` but the Grok-Code provider puts cached tokens inside `usage.inputTokens.cacheRead`. Let me look more closely at this:"
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"content": " 560β†’ }),\n 561β†’ (input) => {\n 562β†’ // Log raw usage data in verbose mode for debugging\n 563β†’ if (Flag.OPENCODE_VERBOSE) {\n 564β†’ log.debug(() => ({\n 565β†’ message: 'getUsage called with raw data',\n 566β†’ rawUsage: JSON.stringify(input.usage),\n 567β†’ rawMetadata: input.metadata ? JSON.stringify(input.metadata) : 'none',\n 568β†’ }));\n 569β†’ }\n 570β†’\n 571β†’ // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n 572β†’ const safeNum = (n: number): number =>\n 573β†’ Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n 574β†’\n 575β†’ const cachedInputTokens = safeNum(\n 576β†’ toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n 577β†’ );\n 578β†’ const excludesCachedTokens = !!(\n 579β†’ input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n 580β†’ );\n 581β†’\n 582β†’ const rawInputTokens = safeNum(\n 583β†’ toNumber(input.usage.inputTokens, 'inputTokens')\n 584β†’ );\n 585β†’ const adjustedInputTokens = excludesCachedTokens\n 586β†’ ? rawInputTokens\n 587β†’ : rawInputTokens - cachedInputTokens;\n 588β†’\n 589β†’ const cacheWriteTokens = safeNum(\n 590β†’ toNumber(\n 591β†’ input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n 592β†’ // @ts-expect-error - bedrock metadata structure may vary\n 593β†’ input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 594β†’ 'cacheWriteTokens'\n 595β†’ )\n 596β†’ );\n 597β†’\n 598β†’ const tokens = {\n 599β†’ input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n 600β†’ output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n 601β†’ reasoning: safeNum(\n 602β†’ toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n 603β†’ ),\n 604β†’ cache: {\n 605β†’ write: cacheWriteTokens,\n 606β†’ read: cachedInputTokens,\n 607β†’ },\n 608β†’ };\n 609β†’\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
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"content": " }),\n (input) => {\n // Log raw usage data in verbose mode for debugging\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'getUsage called with raw data',\n rawUsage: JSON.stringify(input.usage),\n rawMetadata: input.metadata ? JSON.stringify(input.metadata) : 'none',\n }));\n }\n\n // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n const safeNum = (n: number): number =>\n Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n\n const cachedInputTokens = safeNum(\n toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n );\n const excludesCachedTokens = !!(\n input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n );\n\n const rawInputTokens = safeNum(\n toNumber(input.usage.inputTokens, 'inputTokens')\n );\n const adjustedInputTokens = excludesCachedTokens\n ? rawInputTokens\n : rawInputTokens - cachedInputTokens;\n\n const cacheWriteTokens = safeNum(\n toNumber(\n input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n // @ts-expect-error - bedrock metadata structure may vary\n input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 'cacheWriteTokens'\n )\n );\n\n const tokens = {\n input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n reasoning: safeNum(\n toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n ),\n cache: {\n write: cacheWriteTokens,\n read: cachedInputTokens,\n },\n };\n",
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"text": "Now I understand the issue thoroughly. Let me update my todos and start implementing the fix:"
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[2026-01-21T21:34:05.620Z] [INFO] {
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"status": "completed",
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[2026-01-21T21:34:08.317Z] [INFO] {
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[2026-01-21T21:34:42.193Z] [INFO] {
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"content": "# Case Study: Issue #127 - Cannot convert undefined to number: toNumber error - returning NaN\n\n## Summary\n\nThis case study documents the investigation and resolution of a debug log message that appears when using the `opencode/grok-code` model. While not a crash, the verbose debug logs show \"Cannot convert undefined to number\" errors for optional token fields (`cachedInputTokens`, `cacheWriteTokens`, `reasoningTokens`) that are not provided by some AI providers.\n\n## Issue Details\n\n- **Issue**: [#127](https://github.com/link-assistant/agent/issues/127)\n- **Title**: Cannot convert undefined to number: toNumber error - returning NaN\n- **Labels**: bug\n- **Version**: 0.8.6\n- **Related Issues**: [#119](https://github.com/link-assistant/agent/issues/119), [#125](https://github.com/link-assistant/agent/issues/125)\n\n## Environment\n\n| Factor | Value |\n|--------|-------|\n| Bun version | 1.3.6 |\n| Platform | linux (Ubuntu) |\n| Agent version | 0.8.6 |\n| AI Model | opencode/grok-code |\n\n## Symptoms\n\n### Debug Log Messages\n\nWhen running with `--verbose` flag, the following debug messages appear:\n\n```json\n{\"context\":\"cachedInputTokens\",\"valueType\":\"undefined\",\"value\":\"undefined\",\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"}\n{\"context\":\"cacheWriteTokens\",\"valueType\":\"undefined\",\"value\":\"undefined\",\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"}\n{\"context\":\"reasoningTokens\",\"valueType\":\"undefined\",\"value\":\"undefined\",\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"}\n```\n\n### Raw Usage Data from Provider\n\nThe provider returns token usage in a different format:\n\n```json\n{\n \"inputTokens\": {\"total\": 12703, \"noCache\": 12511, \"cacheRead\": 192},\n \"outputTokens\": {\"total\": 562, \"text\": -805, \"reasoning\": 1367}\n}\n```\n\nNote that:\n- `cachedInputTokens` is `undefined` (not provided at top level)\n- Cache read tokens are nested inside `inputTokens.cacheRead`\n- `reasoningTokens` is `undefined` (not provided at top level)\n- Reasoning tokens are nested inside `outputTokens.reasoning`\n\n## Root Cause Analysis\n\n### Primary Issue\n\nThe `toNumber()` function treats `undefined` as an error case, throwing an exception and returning `NaN`. While the `safeNum()` helper then converts this `NaN` to `0`, the verbose logging makes this appear as an error when it's actually expected behavior for optional fields.\n\n### Technical Details\n\n1. **Current `toNumber()` behavior** (lines 411-414 in `src/session/index.ts`):\n ```typescript\n if (value === undefined || value === null) {\n throw new Error(`Cannot convert ${value} to number`);\n }\n ```\n\n2. **Why this is problematic**:\n - Many AI providers don't include optional fields like `cachedInputTokens`\n - The `toNumber()` function logs these as \"errors\" even though `undefined` is a valid/expected input\n - The log message \"toNumber error - returning NaN\" suggests something went wrong when everything is working correctly\n\n3. **Missing data extraction**:\n - The `opencode/grok-code` provider includes `cacheRead` inside the `inputTokens` object\n - The `reasoningTokens` data exists inside `outputTokens.reasoning`\n - Currently, `getUsage()` doesn't extract these nested values\n\n### Error Flow Diagram\n\n```\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ AI Provider Returns Usage Data β”‚\nβ”‚ { inputTokens: { total: 12703, cacheRead: 192 }, β”‚\nβ”‚ outputTokens: { total: 562, reasoning: 1367 } } β”‚\nβ”‚ (cachedInputTokens field is undefined/missing) β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n β”‚\n β–Ό\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ getUsage() calls toNumber(undefined, 'cachedInputTokens')β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n β”‚\n β–Ό\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ toNumber() throws error for undefined β”‚\nβ”‚ Logs \"toNumber error - returning NaN\" β”‚\nβ”‚ Returns NaN β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n β”‚\n β–Ό\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ safeNum() converts NaN to 0 β”‚\nβ”‚ (correct final result, but alarming logs) β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n```\n\n## Solution\n\n### Fix 1: Handle undefined/null gracefully in `toNumber()`\n\nInstead of treating `undefined`/`null` as errors, return `0` directly with an informational log:\n\n```typescript\nif (value === undefined || value === null) {\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber received undefined/null, returning 0',\n context,\n valueType: typeof value,\n }));\n }\n return 0;\n}\n```\n\n### Fix 2: Extract nested cache/reasoning tokens in `getUsage()`\n\nAdd logic to extract `cacheRead` from `inputTokens` object and `reasoning` from `outputTokens` object when available:\n\n```typescript\n// Extract cacheRead from inputTokens if available (some providers nest it there)\nconst inputTokensObj = input.usage.inputTokens;\nconst nestedCacheRead = typeof inputTokensObj === 'object' && inputTokensObj !== null\n ? safeNum(toNumber((inputTokensObj as { cacheRead?: unknown }).cacheRead, 'inputTokens.cacheRead'))\n : 0;\n\n// Use top-level cachedInputTokens if available, otherwise fall back to nested\nconst cachedInputTokens = safeNum(toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')) || nestedCacheRead;\n\n// Similarly for reasoning tokens from outputTokens\nconst outputTokensObj = input.usage.outputTokens;\nconst nestedReasoning = typeof outputTokensObj === 'object' && outputTokensObj !== null\n ? safeNum(toNumber((outputTokensObj as { reasoning?: unknown }).reasoning, 'outputTokens.reasoning'))\n : 0;\n\nconst reasoning = safeNum(toNumber(input.usage?.reasoningTokens, 'reasoningTokens')) || nestedReasoning;\n```\n\n## Testing\n\n### Unit Tests to Update\n\n1. `toNumber(undefined)` should return `0` instead of `NaN`\n2. `toNumber(null)` should return `0` instead of `NaN`\n3. Add tests for nested token extraction from `inputTokens.cacheRead`\n4. Add tests for nested token extraction from `outputTokens.reasoning`\n\n## Timeline\n\n| Timestamp | Event |\n|-----------|-------|\n| 2026-01-21T19:00:19.814Z | Agent started with opencode/grok-code model |\n| 2026-01-21T19:00:31.418Z | getUsage called with raw token data |\n| 2026-01-21T19:00:31.419Z | toNumber logs \"error\" for cachedInputTokens (undefined) |\n| 2026-01-21T19:00:31.419Z | toNumber logs \"error\" for cacheWriteTokens (undefined) |\n| 2026-01-21T19:00:31.419Z | toNumber logs \"error\" for reasoningTokens (undefined) |\n| 2026-01-21T19:00:31.446Z | step_finish shows tokens with cache.read: 0 (should be 192) |\n| 2026-01-21T19:03:14Z | Issue #127 filed |\n\n## Lessons Learned\n\n1. **Optional fields should not log as errors**: When a field is expected to be optional (like `cachedInputTokens`), its absence should be handled gracefully without error-like log messages\n2. **Provider data varies widely**: Different AI providers structure their token usage data differently - some nest cache/reasoning data, others provide it at the top level\n3. **Debug logs affect user perception**: Even though the code works correctly (NaN is converted to 0), error-like log messages can make users think something is wrong\n4. **Extract all available data**: When providers include useful data in nested structures, the code should extract it to provide accurate metrics\n\n## Files Modified\n\n- `js/src/session/index.ts` - Updated `toNumber()` and `getUsage()` functions\n- `js/tests/session-usage.test.ts` - Updated test expectations\n\n## References\n\n- [GitHub Issue #127](https://github.com/link-assistant/agent/issues/127)\n- [Previous fix for issue #119 (DecimalError)](./docs/case-studies/issue-119/README.md)\n- [Previous fix for issue #125 (object token formats)](./docs/case-studies/issue-125/README.md)\n- [AI SDK documentation on usage tracking](https://ai-sdk.dev/docs/usage)\n"
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"content": "# Case Study: Issue #127 - Cannot convert undefined to number: toNumber error - returning NaN\n\n## Summary\n\nThis case study documents the investigation and resolution of a debug log message that appears when using the `opencode/grok-code` model. While not a crash, the verbose debug logs show \"Cannot convert undefined to number\" errors for optional token fields (`cachedInputTokens`, `cacheWriteTokens`, `reasoningTokens`) that are not provided by some AI providers.\n\n## Issue Details\n\n- **Issue**: [#127](https://github.com/link-assistant/agent/issues/127)\n- **Title**: Cannot convert undefined to number: toNumber error - returning NaN\n- **Labels**: bug\n- **Version**: 0.8.6\n- **Related Issues**: [#119](https://github.com/link-assistant/agent/issues/119), [#125](https://github.com/link-assistant/agent/issues/125)\n\n## Environment\n\n| Factor | Value |\n|--------|-------|\n| Bun version | 1.3.6 |\n| Platform | linux (Ubuntu) |\n| Agent version | 0.8.6 |\n| AI Model | opencode/grok-code |\n\n## Symptoms\n\n### Debug Log Messages\n\nWhen running with `--verbose` flag, the following debug messages appear:\n\n```json\n{\"context\":\"cachedInputTokens\",\"valueType\":\"undefined\",\"value\":\"undefined\",\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"}\n{\"context\":\"cacheWriteTokens\",\"valueType\":\"undefined\",\"value\":\"undefined\",\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"}\n{\"context\":\"reasoningTokens\",\"valueType\":\"undefined\",\"value\":\"undefined\",\"error\":\"Cannot convert undefined to number\",\"message\":\"toNumber error - returning NaN\"}\n```\n\n### Raw Usage Data from Provider\n\nThe provider returns token usage in a different format:\n\n```json\n{\n \"inputTokens\": {\"total\": 12703, \"noCache\": 12511, \"cacheRead\": 192},\n \"outputTokens\": {\"total\": 562, \"text\": -805, \"reasoning\": 1367}\n}\n```\n\nNote that:\n- `cachedInputTokens` is `undefined` (not provided at top level)\n- Cache read tokens are nested inside `inputTokens.cacheRead`\n- `reasoningTokens` is `undefined` (not provided at top level)\n- Reasoning tokens are nested inside `outputTokens.reasoning`\n\n## Root Cause Analysis\n\n### Primary Issue\n\nThe `toNumber()` function treats `undefined` as an error case, throwing an exception and returning `NaN`. While the `safeNum()` helper then converts this `NaN` to `0`, the verbose logging makes this appear as an error when it's actually expected behavior for optional fields.\n\n### Technical Details\n\n1. **Current `toNumber()` behavior** (lines 411-414 in `src/session/index.ts`):\n ```typescript\n if (value === undefined || value === null) {\n throw new Error(`Cannot convert ${value} to number`);\n }\n ```\n\n2. **Why this is problematic**:\n - Many AI providers don't include optional fields like `cachedInputTokens`\n - The `toNumber()` function logs these as \"errors\" even though `undefined` is a valid/expected input\n - The log message \"toNumber error - returning NaN\" suggests something went wrong when everything is working correctly\n\n3. **Missing data extraction**:\n - The `opencode/grok-code` provider includes `cacheRead` inside the `inputTokens` object\n - The `reasoningTokens` data exists inside `outputTokens.reasoning`\n - Currently, `getUsage()` doesn't extract these nested values\n\n### Error Flow Diagram\n\n```\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ AI Provider Returns Usage Data β”‚\nβ”‚ { inputTokens: { total: 12703, cacheRead: 192 }, β”‚\nβ”‚ outputTokens: { total: 562, reasoning: 1367 } } β”‚\nβ”‚ (cachedInputTokens field is undefined/missing) β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n β”‚\n β–Ό\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ getUsage() calls toNumber(undefined, 'cachedInputTokens')β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n β”‚\n β–Ό\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ toNumber() throws error for undefined β”‚\nβ”‚ Logs \"toNumber error - returning NaN\" β”‚\nβ”‚ Returns NaN β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”¬β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n β”‚\n β–Ό\nβ”Œβ”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”\nβ”‚ safeNum() converts NaN to 0 β”‚\nβ”‚ (correct final result, but alarming logs) β”‚\nβ””β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”€β”˜\n```\n\n## Solution\n\n### Fix 1: Handle undefined/null gracefully in `toNumber()`\n\nInstead of treating `undefined`/`null` as errors, return `0` directly with an informational log:\n\n```typescript\nif (value === undefined || value === null) {\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber received undefined/null, returning 0',\n context,\n valueType: typeof value,\n }));\n }\n return 0;\n}\n```\n\n### Fix 2: Extract nested cache/reasoning tokens in `getUsage()`\n\nAdd logic to extract `cacheRead` from `inputTokens` object and `reasoning` from `outputTokens` object when available:\n\n```typescript\n// Extract cacheRead from inputTokens if available (some providers nest it there)\nconst inputTokensObj = input.usage.inputTokens;\nconst nestedCacheRead = typeof inputTokensObj === 'object' && inputTokensObj !== null\n ? safeNum(toNumber((inputTokensObj as { cacheRead?: unknown }).cacheRead, 'inputTokens.cacheRead'))\n : 0;\n\n// Use top-level cachedInputTokens if available, otherwise fall back to nested\nconst cachedInputTokens = safeNum(toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')) || nestedCacheRead;\n\n// Similarly for reasoning tokens from outputTokens\nconst outputTokensObj = input.usage.outputTokens;\nconst nestedReasoning = typeof outputTokensObj === 'object' && outputTokensObj !== null\n ? safeNum(toNumber((outputTokensObj as { reasoning?: unknown }).reasoning, 'outputTokens.reasoning'))\n : 0;\n\nconst reasoning = safeNum(toNumber(input.usage?.reasoningTokens, 'reasoningTokens')) || nestedReasoning;\n```\n\n## Testing\n\n### Unit Tests to Update\n\n1. `toNumber(undefined)` should return `0` instead of `NaN`\n2. `toNumber(null)` should return `0` instead of `NaN`\n3. Add tests for nested token extraction from `inputTokens.cacheRead`\n4. Add tests for nested token extraction from `outputTokens.reasoning`\n\n## Timeline\n\n| Timestamp | Event |\n|-----------|-------|\n| 2026-01-21T19:00:19.814Z | Agent started with opencode/grok-code model |\n| 2026-01-21T19:00:31.418Z | getUsage called with raw token data |\n| 2026-01-21T19:00:31.419Z | toNumber logs \"error\" for cachedInputTokens (undefined) |\n| 2026-01-21T19:00:31.419Z | toNumber logs \"error\" for cacheWriteTokens (undefined) |\n| 2026-01-21T19:00:31.419Z | toNumber logs \"error\" for reasoningTokens (undefined) |\n| 2026-01-21T19:00:31.446Z | step_finish shows tokens with cache.read: 0 (should be 192) |\n| 2026-01-21T19:03:14Z | Issue #127 filed |\n\n## Lessons Learned\n\n1. **Optional fields should not log as errors**: When a field is expected to be optional (like `cachedInputTokens`), its absence should be handled gracefully without error-like log messages\n2. **Provider data varies widely**: Different AI providers structure their token usage data differently - some nest cache/reasoning data, others provide it at the top level\n3. **Debug logs affect user perception**: Even though the code works correctly (NaN is converted to 0), error-like log messages can make users think something is wrong\n4. **Extract all available data**: When providers include useful data in nested structures, the code should extract it to provide accurate metrics\n\n## Files Modified\n\n- `js/src/session/index.ts` - Updated `toNumber()` and `getUsage()` functions\n- `js/tests/session-usage.test.ts` - Updated test expectations\n\n## References\n\n- [GitHub Issue #127](https://github.com/link-assistant/agent/issues/127)\n- [Previous fix for issue #119 (DecimalError)](./docs/case-studies/issue-119/README.md)\n- [Previous fix for issue #125 (object token formats)](./docs/case-studies/issue-125/README.md)\n- [AI SDK documentation on usage tracking](https://ai-sdk.dev/docs/usage)\n",
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"originalFile": "import { Decimal } from 'decimal.js';\nimport z from 'zod';\nimport { type LanguageModelUsage, type ProviderMetadata } from 'ai';\nimport { Bus } from '../bus';\nimport { Config } from '../config/config';\nimport { Flag } from '../flag/flag';\nimport { Identifier } from '../id/id';\nimport type { ModelsDev } from '../provider/models';\nimport { Storage } from '../storage/storage';\nimport { Log } from '../util/log';\nimport { MessageV2 } from './message-v2';\nimport { Instance } from '../project/instance';\nimport { SessionPrompt } from './prompt';\nimport { fn } from '../util/fn';\nimport { Command } from '../command';\nimport { Snapshot } from '../snapshot';\n\nexport namespace Session {\n const log = Log.create({ service: 'session' });\n\n /**\n * Safely converts a value to a Decimal instance.\n * Attempts to create a Decimal from the input value (supports numbers, strings, etc.)\n * and returns Decimal(NaN) only if the Decimal constructor throws an error.\n *\n * Logs input data in verbose mode at all stages to help identify data issues.\n *\n * This is necessary because AI providers may return unexpected token usage data\n * that would crash the Decimal.js constructor with \"[DecimalError] Invalid argument\".\n *\n * @param value - The value to convert to Decimal (number, string, etc.)\n * @param context - Optional context string for debugging (e.g., \"inputTokens\")\n * @returns A Decimal instance, or Decimal(NaN) if the Decimal constructor fails\n * @see https://github.com/link-assistant/agent/issues/119\n */\n export const toDecimal = (value: unknown, context?: string): Decimal => {\n // Log input data in verbose mode to help identify issues\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toDecimal input',\n context,\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n }));\n }\n\n try {\n // Let Decimal handle the conversion - it supports numbers, strings, and more\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const result = new Decimal(value as any);\n\n // Log successful conversion in verbose mode\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toDecimal success',\n context,\n result: result.toString(),\n }));\n }\n\n return result;\n } catch (error) {\n // Log the error and return Decimal(NaN)\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toDecimal error - returning Decimal(NaN)',\n context,\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n error: error instanceof Error ? error.message : String(error),\n }));\n }\n return new Decimal(NaN);\n }\n };\n\n const parentTitlePrefix = 'New session - ';\n const childTitlePrefix = 'Child session - ';\n\n function createDefaultTitle(isChild = false) {\n return (\n (isChild ? childTitlePrefix : parentTitlePrefix) +\n new Date().toISOString()\n );\n }\n\n export function isDefaultTitle(title: string) {\n return new RegExp(\n `^(${parentTitlePrefix}|${childTitlePrefix})\\\\d{4}-\\\\d{2}-\\\\d{2}T\\\\d{2}:\\\\d{2}:\\\\d{2}\\\\.\\\\d{3}Z$`\n ).test(title);\n }\n\n export const Info = z\n .object({\n id: Identifier.schema('session'),\n projectID: z.string(),\n directory: z.string(),\n parentID: Identifier.schema('session').optional(),\n summary: z\n .object({\n additions: z.number(),\n deletions: z.number(),\n files: z.number(),\n diffs: Snapshot.FileDiff.array().optional(),\n })\n .optional(),\n // share field removed - no sharing support\n title: z.string(),\n version: z.string(),\n time: z.object({\n created: z.number(),\n updated: z.number(),\n compacting: z.number().optional(),\n }),\n revert: z\n .object({\n messageID: z.string(),\n partID: z.string().optional(),\n snapshot: z.string().optional(),\n diff: z.string().optional(),\n })\n .optional(),\n })\n .meta({\n ref: 'Session',\n });\n export type Info = z.output<typeof Info>;\n\n // ShareInfo removed - share not supported\n\n export const Event = {\n Created: Bus.event(\n 'session.created',\n z.object({\n info: Info,\n })\n ),\n Updated: Bus.event(\n 'session.updated',\n z.object({\n info: Info,\n })\n ),\n Deleted: Bus.event(\n 'session.deleted',\n z.object({\n info: Info,\n })\n ),\n Diff: Bus.event(\n 'session.diff',\n z.object({\n sessionID: z.string(),\n diff: Snapshot.FileDiff.array(),\n })\n ),\n Error: Bus.event(\n 'session.error',\n z.object({\n sessionID: z.string().optional(),\n error: MessageV2.Assistant.shape.error,\n })\n ),\n };\n\n export const create = fn(\n z\n .object({\n parentID: Identifier.schema('session').optional(),\n title: z.string().optional(),\n })\n .optional(),\n async (input) => {\n return createNext({\n parentID: input?.parentID,\n directory: Instance.directory,\n title: input?.title,\n });\n }\n );\n\n export const fork = fn(\n z.object({\n sessionID: Identifier.schema('session'),\n messageID: Identifier.schema('message').optional(),\n }),\n async (input) => {\n const session = await createNext({\n directory: Instance.directory,\n });\n const msgs = await messages({ sessionID: input.sessionID });\n for (const msg of msgs) {\n if (input.messageID && msg.info.id >= input.messageID) break;\n const cloned = await updateMessage({\n ...msg.info,\n sessionID: session.id,\n id: Identifier.ascending('message'),\n });\n\n for (const part of msg.parts) {\n await updatePart({\n ...part,\n id: Identifier.ascending('part'),\n messageID: cloned.id,\n sessionID: session.id,\n });\n }\n }\n return session;\n }\n );\n\n export const touch = fn(Identifier.schema('session'), async (sessionID) => {\n await update(sessionID, (draft) => {\n draft.time.updated = Date.now();\n });\n });\n\n export async function createNext(input: {\n id?: string;\n title?: string;\n parentID?: string;\n directory: string;\n }) {\n const result: Info = {\n id: Identifier.descending('session', input.id),\n version: 'agent-cli-1.0.0',\n projectID: Instance.project.id,\n directory: input.directory,\n parentID: input.parentID,\n title: input.title ?? createDefaultTitle(!!input.parentID),\n time: {\n created: Date.now(),\n updated: Date.now(),\n },\n };\n log.info(() => ({ message: 'created', ...result }));\n await Storage.write(['session', Instance.project.id, result.id], result);\n Bus.publish(Event.Created, {\n info: result,\n });\n // Share not supported - removed auto-sharing\n Bus.publish(Event.Updated, {\n info: result,\n });\n return result;\n }\n\n export const get = fn(Identifier.schema('session'), async (id) => {\n const read = await Storage.read<Info>(['session', Instance.project.id, id]);\n return read as Info;\n });\n\n // getShare, share, unshare removed - share not supported\n\n export async function update(id: string, editor: (session: Info) => void) {\n const project = Instance.project;\n const result = await Storage.update<Info>(\n ['session', project.id, id],\n (draft) => {\n editor(draft);\n draft.time.updated = Date.now();\n }\n );\n Bus.publish(Event.Updated, {\n info: result,\n });\n return result;\n }\n\n export const diff = fn(Identifier.schema('session'), async (sessionID) => {\n const diffs = await Storage.read<Snapshot.FileDiff[]>([\n 'session_diff',\n sessionID,\n ]);\n return diffs ?? [];\n });\n\n export const messages = fn(\n z.object({\n sessionID: Identifier.schema('session'),\n limit: z.number().optional(),\n }),\n async (input) => {\n const result = [] as MessageV2.WithParts[];\n for await (const msg of MessageV2.stream(input.sessionID)) {\n if (input.limit && result.length >= input.limit) break;\n result.push(msg);\n }\n result.reverse();\n return result;\n }\n );\n\n export async function* list() {\n const project = Instance.project;\n for (const item of await Storage.list(['session', project.id])) {\n yield Storage.read<Info>(item);\n }\n }\n\n export const children = fn(Identifier.schema('session'), async (parentID) => {\n const project = Instance.project;\n const result = [] as Session.Info[];\n for (const item of await Storage.list(['session', project.id])) {\n const session = await Storage.read<Info>(item);\n if (session.parentID !== parentID) continue;\n result.push(session);\n }\n return result;\n });\n\n export const remove = fn(Identifier.schema('session'), async (sessionID) => {\n const project = Instance.project;\n try {\n const session = await get(sessionID);\n for (const child of await children(sessionID)) {\n await remove(child.id);\n }\n // unshare removed - share not supported\n for (const msg of await Storage.list(['message', sessionID])) {\n for (const part of await Storage.list(['part', msg.at(-1)!])) {\n await Storage.remove(part);\n }\n await Storage.remove(msg);\n }\n await Storage.remove(['session', project.id, sessionID]);\n Bus.publish(Event.Deleted, {\n info: session,\n });\n } catch (e) {\n log.error(() => ({ error: e }));\n }\n });\n\n export const updateMessage = fn(MessageV2.Info, async (msg) => {\n await Storage.write(['message', msg.sessionID, msg.id], msg);\n Bus.publish(MessageV2.Event.Updated, {\n info: msg,\n });\n return msg;\n });\n\n export const removeMessage = fn(\n z.object({\n sessionID: Identifier.schema('session'),\n messageID: Identifier.schema('message'),\n }),\n async (input) => {\n await Storage.remove(['message', input.sessionID, input.messageID]);\n Bus.publish(MessageV2.Event.Removed, {\n sessionID: input.sessionID,\n messageID: input.messageID,\n });\n return input.messageID;\n }\n );\n\n const UpdatePartInput = z.union([\n MessageV2.Part,\n z.object({\n part: MessageV2.TextPart,\n delta: z.string(),\n }),\n z.object({\n part: MessageV2.ReasoningPart,\n delta: z.string(),\n }),\n ]);\n\n export const updatePart = fn(UpdatePartInput, async (input) => {\n const part = 'delta' in input ? input.part : input;\n const delta = 'delta' in input ? input.delta : undefined;\n await Storage.write(['part', part.messageID, part.id], part);\n Bus.publish(MessageV2.Event.PartUpdated, {\n part,\n delta,\n });\n return part;\n });\n\n /**\n * Safely converts a value to a number.\n * Attempts to parse/convert the input value and returns NaN if conversion fails.\n *\n * Logs input data in verbose mode at all stages to help identify data issues.\n *\n * This is necessary because AI providers may return unexpected token usage data\n * that would cause issues if not handled properly.\n *\n * @param value - The value to convert to number (number, string, etc.)\n * @param context - Optional context string for debugging (e.g., \"inputTokens\")\n * @returns A number, or NaN if conversion fails\n * @see https://github.com/link-assistant/agent/issues/119\n */\n export const toNumber = (value: unknown, context?: string): number => {\n // Log input data in verbose mode to help identify issues\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber input',\n context,\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n }));\n }\n\n try {\n // Handle undefined/null explicitly - Number() would convert these to 0 or NaN\n if (value === undefined || value === null) {\n throw new Error(`Cannot convert ${value} to number`);\n }\n\n // Handle objects with a 'total' field (e.g., { total: 8707, noCache: 6339, cacheRead: 2368 })\n // Some AI providers return token counts as objects instead of plain numbers\n // See: https://github.com/link-assistant/agent/issues/125\n if (\n typeof value === 'object' &&\n value !== null &&\n 'total' in value &&\n typeof (value as { total: unknown }).total === 'number'\n ) {\n const result = (value as { total: number }).total;\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber extracted total from object',\n context,\n result,\n }));\n }\n return result;\n }\n\n // Try to convert to number\n const result = Number(value);\n\n // Check if conversion produced a valid result\n // Note: Number({}) returns NaN, Number([1]) returns 1, Number([1,2]) returns NaN\n if (Number.isNaN(result)) {\n throw new Error(`Conversion to number resulted in NaN`);\n }\n\n // Log successful conversion in verbose mode\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber success',\n context,\n result,\n }));\n }\n\n return result;\n } catch (error) {\n // Log the error and return NaN\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber error - returning NaN',\n context,\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n error: error instanceof Error ? error.message : String(error),\n }));\n }\n return NaN;\n }\n };\n\n /**\n * Safely converts a finishReason value to a string.\n * Some AI providers return finishReason as an object instead of a string.\n *\n * For example, OpenCode provider on certain Bun versions may return:\n * - { type: \"stop\" } instead of \"stop\"\n * - { finishReason: \"tool-calls\" } instead of \"tool-calls\"\n *\n * This function handles these cases gracefully.\n *\n * @param value - The finishReason value (string, object, or undefined)\n * @returns A string representing the finish reason, or 'unknown' if conversion fails\n * @see https://github.com/link-assistant/agent/issues/125\n */\n export const toFinishReason = (value: unknown): string => {\n // Log input data in verbose mode to help identify issues\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason input',\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n }));\n }\n\n // If it's already a string, return it\n if (typeof value === 'string') {\n return value;\n }\n\n // If it's undefined or null, return 'unknown'\n if (value === undefined || value === null) {\n return 'unknown';\n }\n\n // If it's an object, try to extract a meaningful string\n if (typeof value === 'object') {\n const obj = value as Record<string, unknown>;\n\n // Try common field names that might contain the reason\n if (typeof obj.type === 'string') {\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason extracted type from object',\n result: obj.type,\n }));\n }\n return obj.type;\n }\n\n if (typeof obj.finishReason === 'string') {\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason extracted finishReason from object',\n result: obj.finishReason,\n }));\n }\n return obj.finishReason;\n }\n\n if (typeof obj.reason === 'string') {\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason extracted reason from object',\n result: obj.reason,\n }));\n }\n return obj.reason;\n }\n\n // If we can't extract a specific field, return JSON representation\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason could not extract string, using JSON',\n result: JSON.stringify(value),\n }));\n }\n return JSON.stringify(value);\n }\n\n // For any other type, convert to string\n return String(value);\n };\n\n export const getUsage = fn(\n z.object({\n model: z.custom<ModelsDev.Model>(),\n usage: z.custom<LanguageModelUsage>(),\n metadata: z.custom<ProviderMetadata>().optional(),\n }),\n (input) => {\n // Log raw usage data in verbose mode for debugging\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'getUsage called with raw data',\n rawUsage: JSON.stringify(input.usage),\n rawMetadata: input.metadata ? JSON.stringify(input.metadata) : 'none',\n }));\n }\n\n // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n const safeNum = (n: number): number =>\n Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n\n const cachedInputTokens = safeNum(\n toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n );\n const excludesCachedTokens = !!(\n input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n );\n\n const rawInputTokens = safeNum(\n toNumber(input.usage.inputTokens, 'inputTokens')\n );\n const adjustedInputTokens = excludesCachedTokens\n ? rawInputTokens\n : rawInputTokens - cachedInputTokens;\n\n const cacheWriteTokens = safeNum(\n toNumber(\n input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n // @ts-expect-error - bedrock metadata structure may vary\n input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 'cacheWriteTokens'\n )\n );\n\n const tokens = {\n input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n reasoning: safeNum(\n toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n ),\n cache: {\n write: cacheWriteTokens,\n read: cachedInputTokens,\n },\n };\n\n const costInfo =\n input.model.cost?.context_over_200k &&\n tokens.input + tokens.cache.read > 200_000\n ? input.model.cost.context_over_200k\n : input.model.cost;\n\n // Calculate cost using toDecimal for safe Decimal construction\n const costDecimal = toDecimal(0, 'cost_base')\n .add(\n toDecimal(tokens.input, 'tokens.input')\n .mul(toDecimal(costInfo?.input ?? 0, 'costInfo.input'))\n .div(1_000_000)\n )\n .add(\n toDecimal(tokens.output, 'tokens.output')\n .mul(toDecimal(costInfo?.output ?? 0, 'costInfo.output'))\n .div(1_000_000)\n )\n .add(\n toDecimal(tokens.cache.read, 'tokens.cache.read')\n .mul(toDecimal(costInfo?.cache_read ?? 0, 'costInfo.cache_read'))\n .div(1_000_000)\n )\n .add(\n toDecimal(tokens.cache.write, 'tokens.cache.write')\n .mul(toDecimal(costInfo?.cache_write ?? 0, 'costInfo.cache_write'))\n .div(1_000_000)\n )\n // TODO: update models.dev to have better pricing model, for now:\n // charge reasoning tokens at the same rate as output tokens\n .add(\n toDecimal(tokens.reasoning, 'tokens.reasoning')\n .mul(\n toDecimal(costInfo?.output ?? 0, 'costInfo.output_for_reasoning')\n )\n .div(1_000_000)\n );\n\n // Convert to number, defaulting to 0 if result is NaN or not finite\n const cost =\n costDecimal.isNaN() || !costDecimal.isFinite()\n ? 0\n : costDecimal.toNumber();\n\n return {\n cost,\n tokens,\n };\n }\n );\n\n export class BusyError extends Error {\n constructor(public readonly sessionID: string) {\n super(`Session ${sessionID} is busy`);\n }\n }\n\n export const initialize = fn(\n z.object({\n sessionID: Identifier.schema('session'),\n modelID: z.string(),\n providerID: z.string(),\n messageID: Identifier.schema('message'),\n }),\n async (input) => {\n await SessionPrompt.command({\n sessionID: input.sessionID,\n messageID: input.messageID,\n model: input.providerID + '/' + input.modelID,\n command: Command.Default.INIT,\n arguments: '',\n });\n }\n );\n}\n",
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" }",
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"- // Handle undefined/null explicitly - Number() would convert these to 0 or NaN",
"+ // Handle undefined/null gracefully by returning 0",
"+ // These are expected for optional fields like cachedInputTokens, reasoningTokens",
"+ // See: https://github.com/link-assistant/agent/issues/127",
" if (value === undefined || value === null) {",
"- throw new Error(`Cannot convert ${value} to number`);",
"+ if (Flag.OPENCODE_VERBOSE) {",
"+ log.debug(() => ({",
"+ message: 'toNumber received undefined/null, returning 0',",
"+ context,",
"+ valueType: typeof value,",
"+ }));",
"+ }",
"+ return 0;",
" }",
" ",
" // Handle objects with a 'total' field (e.g., { total: 8707, noCache: 6339, cacheRead: 2368 })"
]
}
],
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[2026-01-21T21:35:02.031Z] [INFO] {
"type": "assistant",
"message": {
"model": "claude-opus-4-5-20251101",
"id": "msg_015poSBNT4NcrPRQPbMB1am9",
"type": "message",
"role": "assistant",
"content": [
{
"type": "text",
"text": "Now let me update the `getUsage` function to extract nested cache/reasoning tokens. First, let me read the current implementation again:"
}
],
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"stop_sequence": null,
"usage": {
"input_tokens": 0,
"cache_creation_input_tokens": 376,
"cache_read_input_tokens": 84685,
"cache_creation": {
"ephemeral_5m_input_tokens": 376,
"ephemeral_1h_input_tokens": 0
},
"output_tokens": 8,
"service_tier": "standard"
},
"context_management": null
},
"parent_tool_use_id": null,
"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
"uuid": "f883ccdc-ab1f-457b-89b9-19391ebce089"
}
[2026-01-21T21:35:02.614Z] [INFO] {
"type": "assistant",
"message": {
"model": "claude-opus-4-5-20251101",
"id": "msg_015poSBNT4NcrPRQPbMB1am9",
"type": "message",
"role": "assistant",
"content": [
{
"type": "tool_use",
"id": "toolu_016dfHPxL65gNTFfoUXdE3GS",
"name": "Read",
"input": {
"file_path": "/tmp/gh-issue-solver-1769031083044/js/src/session/index.ts",
"offset": 565,
"limit": 55
}
}
],
"stop_reason": null,
"stop_sequence": null,
"usage": {
"input_tokens": 0,
"cache_creation_input_tokens": 376,
"cache_read_input_tokens": 84685,
"cache_creation": {
"ephemeral_5m_input_tokens": 376,
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},
"output_tokens": 8,
"service_tier": "standard"
},
"context_management": null
},
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"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
"uuid": "9cdfc54e-622c-4a00-800a-2c91e19f356a"
}
[2026-01-21T21:35:02.642Z] [INFO] {
"type": "user",
"message": {
"role": "user",
"content": [
{
"tool_use_id": "toolu_016dfHPxL65gNTFfoUXdE3GS",
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"content": " 565β†’ z.object({\n 566β†’ model: z.custom<ModelsDev.Model>(),\n 567β†’ usage: z.custom<LanguageModelUsage>(),\n 568β†’ metadata: z.custom<ProviderMetadata>().optional(),\n 569β†’ }),\n 570β†’ (input) => {\n 571β†’ // Log raw usage data in verbose mode for debugging\n 572β†’ if (Flag.OPENCODE_VERBOSE) {\n 573β†’ log.debug(() => ({\n 574β†’ message: 'getUsage called with raw data',\n 575β†’ rawUsage: JSON.stringify(input.usage),\n 576β†’ rawMetadata: input.metadata ? JSON.stringify(input.metadata) : 'none',\n 577β†’ }));\n 578β†’ }\n 579β†’\n 580β†’ // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n 581β†’ const safeNum = (n: number): number =>\n 582β†’ Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n 583β†’\n 584β†’ const cachedInputTokens = safeNum(\n 585β†’ toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n 586β†’ );\n 587β†’ const excludesCachedTokens = !!(\n 588β†’ input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n 589β†’ );\n 590β†’\n 591β†’ const rawInputTokens = safeNum(\n 592β†’ toNumber(input.usage.inputTokens, 'inputTokens')\n 593β†’ );\n 594β†’ const adjustedInputTokens = excludesCachedTokens\n 595β†’ ? rawInputTokens\n 596β†’ : rawInputTokens - cachedInputTokens;\n 597β†’\n 598β†’ const cacheWriteTokens = safeNum(\n 599β†’ toNumber(\n 600β†’ input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n 601β†’ // @ts-expect-error - bedrock metadata structure may vary\n 602β†’ input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 603β†’ 'cacheWriteTokens'\n 604β†’ )\n 605β†’ );\n 606β†’\n 607β†’ const tokens = {\n 608β†’ input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n 609β†’ output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n 610β†’ reasoning: safeNum(\n 611β†’ toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n 612β†’ ),\n 613β†’ cache: {\n 614β†’ write: cacheWriteTokens,\n 615β†’ read: cachedInputTokens,\n 616β†’ },\n 617β†’ };\n 618β†’\n 619β†’ const costInfo =\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
}
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"uuid": "16732bc6-771a-4efb-b83d-5372f736a00b",
"tool_use_result": {
"type": "text",
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"filePath": "/tmp/gh-issue-solver-1769031083044/js/src/session/index.ts",
"content": " z.object({\n model: z.custom<ModelsDev.Model>(),\n usage: z.custom<LanguageModelUsage>(),\n metadata: z.custom<ProviderMetadata>().optional(),\n }),\n (input) => {\n // Log raw usage data in verbose mode for debugging\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'getUsage called with raw data',\n rawUsage: JSON.stringify(input.usage),\n rawMetadata: input.metadata ? JSON.stringify(input.metadata) : 'none',\n }));\n }\n\n // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n const safeNum = (n: number): number =>\n Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n\n const cachedInputTokens = safeNum(\n toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n );\n const excludesCachedTokens = !!(\n input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n );\n\n const rawInputTokens = safeNum(\n toNumber(input.usage.inputTokens, 'inputTokens')\n );\n const adjustedInputTokens = excludesCachedTokens\n ? rawInputTokens\n : rawInputTokens - cachedInputTokens;\n\n const cacheWriteTokens = safeNum(\n toNumber(\n input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n // @ts-expect-error - bedrock metadata structure may vary\n input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 'cacheWriteTokens'\n )\n );\n\n const tokens = {\n input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n reasoning: safeNum(\n toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n ),\n cache: {\n write: cacheWriteTokens,\n read: cachedInputTokens,\n },\n };\n\n const costInfo =",
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}
[2026-01-21T21:35:05.007Z] [INFO] {
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"id": "msg_015iotSTdbN36szqfV5jkhmo",
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{
"type": "text",
"text": "Now I'll update the `getUsage` function to extract nested cache/reasoning tokens:"
}
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"service_tier": "standard"
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"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
"uuid": "26c65ada-1f68-4bb6-a391-db2f04556e85"
}
[2026-01-21T21:35:15.918Z] [INFO] {
"type": "assistant",
"message": {
"model": "claude-opus-4-5-20251101",
"id": "msg_015iotSTdbN36szqfV5jkhmo",
"type": "message",
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"content": [
{
"type": "tool_use",
"id": "toolu_01AsDb6BZGWpz89BiLsewxXA",
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"file_path": "/tmp/gh-issue-solver-1769031083044/js/src/session/index.ts",
"old_string": " // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n const safeNum = (n: number): number =>\n Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n\n const cachedInputTokens = safeNum(\n toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n );\n const excludesCachedTokens = !!(\n input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n );\n\n const rawInputTokens = safeNum(\n toNumber(input.usage.inputTokens, 'inputTokens')\n );\n const adjustedInputTokens = excludesCachedTokens\n ? rawInputTokens\n : rawInputTokens - cachedInputTokens;\n\n const cacheWriteTokens = safeNum(\n toNumber(\n input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n // @ts-expect-error - bedrock metadata structure may vary\n input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 'cacheWriteTokens'\n )\n );\n\n const tokens = {\n input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n reasoning: safeNum(\n toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n ),\n cache: {\n write: cacheWriteTokens,\n read: cachedInputTokens,\n },\n };",
"new_string": " // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n const safeNum = (n: number): number =>\n Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n\n // Extract top-level cachedInputTokens\n const topLevelCachedInputTokens = safeNum(\n toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n );\n\n // Some providers (e.g., opencode/grok-code) nest cacheRead inside inputTokens object\n // e.g., inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 }\n // See: https://github.com/link-assistant/agent/issues/127\n const inputTokensObj = input.usage.inputTokens;\n const nestedCacheRead =\n typeof inputTokensObj === 'object' && inputTokensObj !== null\n ? safeNum(\n toNumber(\n (inputTokensObj as { cacheRead?: unknown }).cacheRead,\n 'inputTokens.cacheRead'\n )\n )\n : 0;\n\n // Use top-level if available, otherwise fall back to nested\n const cachedInputTokens = topLevelCachedInputTokens || nestedCacheRead;\n\n const excludesCachedTokens = !!(\n input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n );\n\n const rawInputTokens = safeNum(\n toNumber(input.usage.inputTokens, 'inputTokens')\n );\n const adjustedInputTokens = excludesCachedTokens\n ? rawInputTokens\n : rawInputTokens - cachedInputTokens;\n\n const cacheWriteTokens = safeNum(\n toNumber(\n input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n // @ts-expect-error - bedrock metadata structure may vary\n input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 'cacheWriteTokens'\n )\n );\n\n // Extract reasoning tokens - some providers nest it inside outputTokens\n // e.g., outputTokens: { total: 562, text: -805, reasoning: 1367 }\n // See: https://github.com/link-assistant/agent/issues/127\n const topLevelReasoningTokens = safeNum(\n toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n );\n const outputTokensObj = input.usage.outputTokens;\n const nestedReasoning =\n typeof outputTokensObj === 'object' && outputTokensObj !== null\n ? safeNum(\n toNumber(\n (outputTokensObj as { reasoning?: unknown }).reasoning,\n 'outputTokens.reasoning'\n )\n )\n : 0;\n const reasoningTokens = topLevelReasoningTokens || nestedReasoning;\n\n const tokens = {\n input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n reasoning: reasoningTokens,\n cache: {\n write: cacheWriteTokens,\n read: cachedInputTokens,\n },\n };"
}
}
],
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"cache_creation_input_tokens": 989,
"cache_read_input_tokens": 85061,
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},
"output_tokens": 1,
"service_tier": "standard"
},
"context_management": null
},
"parent_tool_use_id": null,
"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
"uuid": "a99f0063-b08e-444a-a901-52369f09b6e1"
}
[2026-01-21T21:35:15.948Z] [INFO] {"type":"user","message":{"role":"user","content":[{"tool_use_id":"toolu_01AsDb6BZGWpz89BiLsewxXA","type":"tool_result","content":"The file /tmp/gh-issue-solver-1769031083044/js/src/session/index.ts has been updated successfully."}]},"parent_tool_use_id":null,"session_id":"550af937-3a6e-4e2d-b006-ae2e73646e47","uuid":"3871b0f1-0a7b-45d7-8168-8b5601d121ed","tool_use_result":{"filePath":"/tmp/gh-issue-solver-1769031083044/js/src/session/index.ts","oldString":" // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n const safeNum = (n: number): number =>\n Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n\n const cachedInputTokens = safeNum(\n toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n );\n const excludesCachedTokens = !!(\n input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n );\n\n const rawInputTokens = safeNum(\n toNumber(input.usage.inputTokens, 'inputTokens')\n );\n const adjustedInputTokens = excludesCachedTokens\n ? rawInputTokens\n : rawInputTokens - cachedInputTokens;\n\n const cacheWriteTokens = safeNum(\n toNumber(\n input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n // @ts-expect-error - bedrock metadata structure may vary\n input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 'cacheWriteTokens'\n )\n );\n\n const tokens = {\n input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n reasoning: safeNum(\n toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n ),\n cache: {\n write: cacheWriteTokens,\n read: cachedInputTokens,\n },\n };","newString":" // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n const safeNum = (n: number): number =>\n Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n\n // Extract top-level cachedInputTokens\n const topLevelCachedInputTokens = safeNum(\n toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n );\n\n // Some providers (e.g., opencode/grok-code) nest cacheRead inside inputTokens object\n // e.g., inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 }\n // See: https://github.com/link-assistant/agent/issues/127\n const inputTokensObj = input.usage.inputTokens;\n const nestedCacheRead =\n typeof inputTokensObj === 'object' && inputTokensObj !== null\n ? safeNum(\n toNumber(\n (inputTokensObj as { cacheRead?: unknown }).cacheRead,\n 'inputTokens.cacheRead'\n )\n )\n : 0;\n\n // Use top-level if available, otherwise fall back to nested\n const cachedInputTokens = topLevelCachedInputTokens || nestedCacheRead;\n\n const excludesCachedTokens = !!(\n input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n );\n\n const rawInputTokens = safeNum(\n toNumber(input.usage.inputTokens, 'inputTokens')\n );\n const adjustedInputTokens = excludesCachedTokens\n ? rawInputTokens\n : rawInputTokens - cachedInputTokens;\n\n const cacheWriteTokens = safeNum(\n toNumber(\n input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n // @ts-expect-error - bedrock metadata structure may vary\n input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 'cacheWriteTokens'\n )\n );\n\n // Extract reasoning tokens - some providers nest it inside outputTokens\n // e.g., outputTokens: { total: 562, text: -805, reasoning: 1367 }\n // See: https://github.com/link-assistant/agent/issues/127\n const topLevelReasoningTokens = safeNum(\n toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n );\n const outputTokensObj = input.usage.outputTokens;\n const nestedReasoning =\n typeof outputTokensObj === 'object' && outputTokensObj !== null\n ? safeNum(\n toNumber(\n (outputTokensObj as { reasoning?: unknown }).reasoning,\n 'outputTokens.reasoning'\n )\n )\n : 0;\n const reasoningTokens = topLevelReasoningTokens || nestedReasoning;\n\n const tokens = {\n input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n reasoning: reasoningTokens,\n cache: {\n write: cacheWriteTokens,\n read: cachedInputTokens,\n },\n };","originalFile":"import { Decimal } from 'decimal.js';\nimport z from 'zod';\nimport { type LanguageModelUsage, type ProviderMetadata } from 'ai';\nimport { Bus } from '../bus';\nimport { Config } from '../config/config';\nimport { Flag } from '../flag/flag';\nimport { Identifier } from '../id/id';\nimport type { ModelsDev } from '../provider/models';\nimport { Storage } from '../storage/storage';\nimport { Log } from '../util/log';\nimport { MessageV2 } from './message-v2';\nimport { Instance } from '../project/instance';\nimport { SessionPrompt } from './prompt';\nimport { fn } from '../util/fn';\nimport { Command } from '../command';\nimport { Snapshot } from '../snapshot';\n\nexport namespace Session {\n const log = Log.create({ service: 'session' });\n\n /**\n * Safely converts a value to a Decimal instance.\n * Attempts to create a Decimal from the input value (supports numbers, strings, etc.)\n * and returns Decimal(NaN) only if the Decimal constructor throws an error.\n *\n * Logs input data in verbose mode at all stages to help identify data issues.\n *\n * This is necessary because AI providers may return unexpected token usage data\n * that would crash the Decimal.js constructor with \"[DecimalError] Invalid argument\".\n *\n * @param value - The value to convert to Decimal (number, string, etc.)\n * @param context - Optional context string for debugging (e.g., \"inputTokens\")\n * @returns A Decimal instance, or Decimal(NaN) if the Decimal constructor fails\n * @see https://github.com/link-assistant/agent/issues/119\n */\n export const toDecimal = (value: unknown, context?: string): Decimal => {\n // Log input data in verbose mode to help identify issues\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toDecimal input',\n context,\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n }));\n }\n\n try {\n // Let Decimal handle the conversion - it supports numbers, strings, and more\n // eslint-disable-next-line @typescript-eslint/no-explicit-any\n const result = new Decimal(value as any);\n\n // Log successful conversion in verbose mode\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toDecimal success',\n context,\n result: result.toString(),\n }));\n }\n\n return result;\n } catch (error) {\n // Log the error and return Decimal(NaN)\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toDecimal error - returning Decimal(NaN)',\n context,\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n error: error instanceof Error ? error.message : String(error),\n }));\n }\n return new Decimal(NaN);\n }\n };\n\n const parentTitlePrefix = 'New session - ';\n const childTitlePrefix = 'Child session - ';\n\n function createDefaultTitle(isChild = false) {\n return (\n (isChild ? childTitlePrefix : parentTitlePrefix) +\n new Date().toISOString()\n );\n }\n\n export function isDefaultTitle(title: string) {\n return new RegExp(\n `^(${parentTitlePrefix}|${childTitlePrefix})\\\\d{4}-\\\\d{2}-\\\\d{2}T\\\\d{2}:\\\\d{2}:\\\\d{2}\\\\.\\\\d{3}Z$`\n ).test(title);\n }\n\n export const Info = z\n .object({\n id: Identifier.schema('session'),\n projectID: z.string(),\n directory: z.string(),\n parentID: Identifier.schema('session').optional(),\n summary: z\n .object({\n additions: z.number(),\n deletions: z.number(),\n files: z.number(),\n diffs: Snapshot.FileDiff.array().optional(),\n })\n .optional(),\n // share field removed - no sharing support\n title: z.string(),\n version: z.string(),\n time: z.object({\n created: z.number(),\n updated: z.number(),\n compacting: z.number().optional(),\n }),\n revert: z\n .object({\n messageID: z.string(),\n partID: z.string().optional(),\n snapshot: z.string().optional(),\n diff: z.string().optional(),\n })\n .optional(),\n })\n .meta({\n ref: 'Session',\n });\n export type Info = z.output<typeof Info>;\n\n // ShareInfo removed - share not supported\n\n export const Event = {\n Created: Bus.event(\n 'session.created',\n z.object({\n info: Info,\n })\n ),\n Updated: Bus.event(\n 'session.updated',\n z.object({\n info: Info,\n })\n ),\n Deleted: Bus.event(\n 'session.deleted',\n z.object({\n info: Info,\n })\n ),\n Diff: Bus.event(\n 'session.diff',\n z.object({\n sessionID: z.string(),\n diff: Snapshot.FileDiff.array(),\n })\n ),\n Error: Bus.event(\n 'session.error',\n z.object({\n sessionID: z.string().optional(),\n error: MessageV2.Assistant.shape.error,\n })\n ),\n };\n\n export const create = fn(\n z\n .object({\n parentID: Identifier.schema('session').optional(),\n title: z.string().optional(),\n })\n .optional(),\n async (input) => {\n return createNext({\n parentID: input?.parentID,\n directory: Instance.directory,\n title: input?.title,\n });\n }\n );\n\n export const fork = fn(\n z.object({\n sessionID: Identifier.schema('session'),\n messageID: Identifier.schema('message').optional(),\n }),\n async (input) => {\n const session = await createNext({\n directory: Instance.directory,\n });\n const msgs = await messages({ sessionID: input.sessionID });\n for (const msg of msgs) {\n if (input.messageID && msg.info.id >= input.messageID) break;\n const cloned = await updateMessage({\n ...msg.info,\n sessionID: session.id,\n id: Identifier.ascending('message'),\n });\n\n for (const part of msg.parts) {\n await updatePart({\n ...part,\n id: Identifier.ascending('part'),\n messageID: cloned.id,\n sessionID: session.id,\n });\n }\n }\n return session;\n }\n );\n\n export const touch = fn(Identifier.schema('session'), async (sessionID) => {\n await update(sessionID, (draft) => {\n draft.time.updated = Date.now();\n });\n });\n\n export async function createNext(input: {\n id?: string;\n title?: string;\n parentID?: string;\n directory: string;\n }) {\n const result: Info = {\n id: Identifier.descending('session', input.id),\n version: 'agent-cli-1.0.0',\n projectID: Instance.project.id,\n directory: input.directory,\n parentID: input.parentID,\n title: input.title ?? createDefaultTitle(!!input.parentID),\n time: {\n created: Date.now(),\n updated: Date.now(),\n },\n };\n log.info(() => ({ message: 'created', ...result }));\n await Storage.write(['session', Instance.project.id, result.id], result);\n Bus.publish(Event.Created, {\n info: result,\n });\n // Share not supported - removed auto-sharing\n Bus.publish(Event.Updated, {\n info: result,\n });\n return result;\n }\n\n export const get = fn(Identifier.schema('session'), async (id) => {\n const read = await Storage.read<Info>(['session', Instance.project.id, id]);\n return read as Info;\n });\n\n // getShare, share, unshare removed - share not supported\n\n export async function update(id: string, editor: (session: Info) => void) {\n const project = Instance.project;\n const result = await Storage.update<Info>(\n ['session', project.id, id],\n (draft) => {\n editor(draft);\n draft.time.updated = Date.now();\n }\n );\n Bus.publish(Event.Updated, {\n info: result,\n });\n return result;\n }\n\n export const diff = fn(Identifier.schema('session'), async (sessionID) => {\n const diffs = await Storage.read<Snapshot.FileDiff[]>([\n 'session_diff',\n sessionID,\n ]);\n return diffs ?? [];\n });\n\n export const messages = fn(\n z.object({\n sessionID: Identifier.schema('session'),\n limit: z.number().optional(),\n }),\n async (input) => {\n const result = [] as MessageV2.WithParts[];\n for await (const msg of MessageV2.stream(input.sessionID)) {\n if (input.limit && result.length >= input.limit) break;\n result.push(msg);\n }\n result.reverse();\n return result;\n }\n );\n\n export async function* list() {\n const project = Instance.project;\n for (const item of await Storage.list(['session', project.id])) {\n yield Storage.read<Info>(item);\n }\n }\n\n export const children = fn(Identifier.schema('session'), async (parentID) => {\n const project = Instance.project;\n const result = [] as Session.Info[];\n for (const item of await Storage.list(['session', project.id])) {\n const session = await Storage.read<Info>(item);\n if (session.parentID !== parentID) continue;\n result.push(session);\n }\n return result;\n });\n\n export const remove = fn(Identifier.schema('session'), async (sessionID) => {\n const project = Instance.project;\n try {\n const session = await get(sessionID);\n for (const child of await children(sessionID)) {\n await remove(child.id);\n }\n // unshare removed - share not supported\n for (const msg of await Storage.list(['message', sessionID])) {\n for (const part of await Storage.list(['part', msg.at(-1)!])) {\n await Storage.remove(part);\n }\n await Storage.remove(msg);\n }\n await Storage.remove(['session', project.id, sessionID]);\n Bus.publish(Event.Deleted, {\n info: session,\n });\n } catch (e) {\n log.error(() => ({ error: e }));\n }\n });\n\n export const updateMessage = fn(MessageV2.Info, async (msg) => {\n await Storage.write(['message', msg.sessionID, msg.id], msg);\n Bus.publish(MessageV2.Event.Updated, {\n info: msg,\n });\n return msg;\n });\n\n export const removeMessage = fn(\n z.object({\n sessionID: Identifier.schema('session'),\n messageID: Identifier.schema('message'),\n }),\n async (input) => {\n await Storage.remove(['message', input.sessionID, input.messageID]);\n Bus.publish(MessageV2.Event.Removed, {\n sessionID: input.sessionID,\n messageID: input.messageID,\n });\n return input.messageID;\n }\n );\n\n const UpdatePartInput = z.union([\n MessageV2.Part,\n z.object({\n part: MessageV2.TextPart,\n delta: z.string(),\n }),\n z.object({\n part: MessageV2.ReasoningPart,\n delta: z.string(),\n }),\n ]);\n\n export const updatePart = fn(UpdatePartInput, async (input) => {\n const part = 'delta' in input ? input.part : input;\n const delta = 'delta' in input ? input.delta : undefined;\n await Storage.write(['part', part.messageID, part.id], part);\n Bus.publish(MessageV2.Event.PartUpdated, {\n part,\n delta,\n });\n return part;\n });\n\n /**\n * Safely converts a value to a number.\n * Attempts to parse/convert the input value and returns NaN if conversion fails.\n *\n * Logs input data in verbose mode at all stages to help identify data issues.\n *\n * This is necessary because AI providers may return unexpected token usage data\n * that would cause issues if not handled properly.\n *\n * @param value - The value to convert to number (number, string, etc.)\n * @param context - Optional context string for debugging (e.g., \"inputTokens\")\n * @returns A number, or NaN if conversion fails\n * @see https://github.com/link-assistant/agent/issues/119\n */\n export const toNumber = (value: unknown, context?: string): number => {\n // Log input data in verbose mode to help identify issues\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber input',\n context,\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n }));\n }\n\n try {\n // Handle undefined/null gracefully by returning 0\n // These are expected for optional fields like cachedInputTokens, reasoningTokens\n // See: https://github.com/link-assistant/agent/issues/127\n if (value === undefined || value === null) {\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber received undefined/null, returning 0',\n context,\n valueType: typeof value,\n }));\n }\n return 0;\n }\n\n // Handle objects with a 'total' field (e.g., { total: 8707, noCache: 6339, cacheRead: 2368 })\n // Some AI providers return token counts as objects instead of plain numbers\n // See: https://github.com/link-assistant/agent/issues/125\n if (\n typeof value === 'object' &&\n value !== null &&\n 'total' in value &&\n typeof (value as { total: unknown }).total === 'number'\n ) {\n const result = (value as { total: number }).total;\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber extracted total from object',\n context,\n result,\n }));\n }\n return result;\n }\n\n // Try to convert to number\n const result = Number(value);\n\n // Check if conversion produced a valid result\n // Note: Number({}) returns NaN, Number([1]) returns 1, Number([1,2]) returns NaN\n if (Number.isNaN(result)) {\n throw new Error(`Conversion to number resulted in NaN`);\n }\n\n // Log successful conversion in verbose mode\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber success',\n context,\n result,\n }));\n }\n\n return result;\n } catch (error) {\n // Log the error and return NaN\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toNumber error - returning NaN',\n context,\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n error: error instanceof Error ? error.message : String(error),\n }));\n }\n return NaN;\n }\n };\n\n /**\n * Safely converts a finishReason value to a string.\n * Some AI providers return finishReason as an object instead of a string.\n *\n * For example, OpenCode provider on certain Bun versions may return:\n * - { type: \"stop\" } instead of \"stop\"\n * - { finishReason: \"tool-calls\" } instead of \"tool-calls\"\n *\n *
[2026-01-21T21:35:15.961Z] [INFO] This function handles these cases gracefully.\n *\n * @param value - The finishReason value (string, object, or undefined)\n * @returns A string representing the finish reason, or 'unknown' if conversion fails\n * @see https://github.com/link-assistant/agent/issues/125\n */\n export const toFinishReason = (value: unknown): string => {\n // Log input data in verbose mode to help identify issues\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason input',\n valueType: typeof value,\n value:\n typeof value === 'object' ? JSON.stringify(value) : String(value),\n }));\n }\n\n // If it's already a string, return it\n if (typeof value === 'string') {\n return value;\n }\n\n // If it's undefined or null, return 'unknown'\n if (value === undefined || value === null) {\n return 'unknown';\n }\n\n // If it's an object, try to extract a meaningful string\n if (typeof value === 'object') {\n const obj = value as Record<string, unknown>;\n\n // Try common field names that might contain the reason\n if (typeof obj.type === 'string') {\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason extracted type from object',\n result: obj.type,\n }));\n }\n return obj.type;\n }\n\n if (typeof obj.finishReason === 'string') {\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason extracted finishReason from object',\n result: obj.finishReason,\n }));\n }\n return obj.finishReason;\n }\n\n if (typeof obj.reason === 'string') {\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason extracted reason from object',\n result: obj.reason,\n }));\n }\n return obj.reason;\n }\n\n // If we can't extract a specific field, return JSON representation\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'toFinishReason could not extract string, using JSON',\n result: JSON.stringify(value),\n }));\n }\n return JSON.stringify(value);\n }\n\n // For any other type, convert to string\n return String(value);\n };\n\n export const getUsage = fn(\n z.object({\n model: z.custom<ModelsDev.Model>(),\n usage: z.custom<LanguageModelUsage>(),\n metadata: z.custom<ProviderMetadata>().optional(),\n }),\n (input) => {\n // Log raw usage data in verbose mode for debugging\n if (Flag.OPENCODE_VERBOSE) {\n log.debug(() => ({\n message: 'getUsage called with raw data',\n rawUsage: JSON.stringify(input.usage),\n rawMetadata: input.metadata ? JSON.stringify(input.metadata) : 'none',\n }));\n }\n\n // Helper: convert toNumber result to 0 if NaN or not finite (for safe calculations)\n const safeNum = (n: number): number =>\n Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;\n\n const cachedInputTokens = safeNum(\n toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')\n );\n const excludesCachedTokens = !!(\n input.metadata?.['anthropic'] || input.metadata?.['bedrock']\n );\n\n const rawInputTokens = safeNum(\n toNumber(input.usage.inputTokens, 'inputTokens')\n );\n const adjustedInputTokens = excludesCachedTokens\n ? rawInputTokens\n : rawInputTokens - cachedInputTokens;\n\n const cacheWriteTokens = safeNum(\n toNumber(\n input.metadata?.['anthropic']?.['cacheCreationInputTokens'] ??\n // @ts-expect-error - bedrock metadata structure may vary\n input.metadata?.['bedrock']?.['usage']?.['cacheWriteInputTokens'],\n 'cacheWriteTokens'\n )\n );\n\n const tokens = {\n input: Math.max(0, adjustedInputTokens), // Ensure non-negative\n output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),\n reasoning: safeNum(\n toNumber(input.usage?.reasoningTokens, 'reasoningTokens')\n ),\n cache: {\n write: cacheWriteTokens,\n read: cachedInputTokens,\n },\n };\n\n const costInfo =\n input.model.cost?.context_over_200k &&\n tokens.input + tokens.cache.read > 200_000\n ? input.model.cost.context_over_200k\n : input.model.cost;\n\n // Calculate cost using toDecimal for safe Decimal construction\n const costDecimal = toDecimal(0, 'cost_base')\n .add(\n toDecimal(tokens.input, 'tokens.input')\n .mul(toDecimal(costInfo?.input ?? 0, 'costInfo.input'))\n .div(1_000_000)\n )\n .add(\n toDecimal(tokens.output, 'tokens.output')\n .mul(toDecimal(costInfo?.output ?? 0, 'costInfo.output'))\n .div(1_000_000)\n )\n .add(\n toDecimal(tokens.cache.read, 'tokens.cache.read')\n .mul(toDecimal(costInfo?.cache_read ?? 0, 'costInfo.cache_read'))\n .div(1_000_000)\n )\n .add(\n toDecimal(tokens.cache.write, 'tokens.cache.write')\n .mul(toDecimal(costInfo?.cache_write ?? 0, 'costInfo.cache_write'))\n .div(1_000_000)\n )\n // TODO: update models.dev to have better pricing model, for now:\n // charge reasoning tokens at the same rate as output tokens\n .add(\n toDecimal(tokens.reasoning, 'tokens.reasoning')\n .mul(\n toDecimal(costInfo?.output ?? 0, 'costInfo.output_for_reasoning')\n )\n .div(1_000_000)\n );\n\n // Convert to number, defaulting to 0 if result is NaN or not finite\n const cost =\n costDecimal.isNaN() || !costDecimal.isFinite()\n ? 0\n : costDecimal.toNumber();\n\n return {\n cost,\n tokens,\n };\n }\n );\n\n export class BusyError extends Error {\n constructor(public readonly sessionID: string) {\n super(`Session ${sessionID} is busy`);\n }\n }\n\n export const initialize = fn(\n z.object({\n sessionID: Identifier.schema('session'),\n modelID: z.string(),\n providerID: z.string(),\n messageID: Identifier.schema('message'),\n }),\n async (input) => {\n await SessionPrompt.command({\n sessionID: input.sessionID,\n messageID: input.messageID,\n model: input.providerID + '/' + input.modelID,\n command: Command.Default.INIT,\n arguments: '',\n });\n }\n );\n}\n","structuredPatch":[{"oldStart":581,"oldLines":9,"newStart":581,"newLines":28,"lines":[" const safeNum = (n: number): number =>"," Number.isNaN(n) || !Number.isFinite(n) ? 0 : n;"," ","- const cachedInputTokens = safeNum(","+ // Extract top-level cachedInputTokens","+ const topLevelCachedInputTokens = safeNum("," toNumber(input.usage.cachedInputTokens, 'cachedInputTokens')"," );","+","+ // Some providers (e.g., opencode/grok-code) nest cacheRead inside inputTokens object","+ // e.g., inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 }","+ // See: https://github.com/link-assistant/agent/issues/127","+ const inputTokensObj = input.usage.inputTokens;","+ const nestedCacheRead =","+ typeof inputTokensObj === 'object' && inputTokensObj !== null","+ ? safeNum(","+ toNumber(","+ (inputTokensObj as { cacheRead?: unknown }).cacheRead,","+ 'inputTokens.cacheRead'","+ )","+ )","+ : 0;","+","+ // Use top-level if available, otherwise fall back to nested","+ const cachedInputTokens = topLevelCachedInputTokens || nestedCacheRead;","+"," const excludesCachedTokens = !!("," input.metadata?.['anthropic'] || input.metadata?.['bedrock']"," );"]},{"oldStart":604,"oldLines":12,"newStart":623,"newLines":28,"lines":[" )"," );"," ","+ // Extract reasoning tokens - some providers nest it inside outputTokens","+ // e.g., outputTokens: { total: 562, text: -805, reasoning: 1367 }","+ // See: https://github.com/link-assistant/agent/issues/127","+ const topLevelReasoningTokens = safeNum(","+ toNumber(input.usage?.reasoningTokens, 'reasoningTokens')","+ );","+ const outputTokensObj = input.usage.outputTokens;","+ const nestedReasoning =","+ typeof outputTokensObj === 'object' && outputTokensObj !== null","+ ? safeNum(","+ toNumber(","+ (outputTokensObj as { reasoning?: unknown }).reasoning,","+ 'outputTokens.reasoning'","+ )","+ )","+ : 0;","+ const reasoningTokens = topLevelReasoningTokens || nestedReasoning;","+"," const tokens = {"," input: Math.max(0, adjustedInputTokens), // Ensure non-negative"," output: safeNum(toNumber(input.usage.outputTokens, 'outputTokens')),","- reasoning: safeNum(","- toNumber(input.usage?.reasoningTokens, 'reasoningTokens')","- ),","+ reasoning: reasoningTokens,"," cache: {"," write: cacheWriteTokens,"," read: cachedInputTokens,"]}],"userModified":false,"replaceAll":false}}
[2026-01-21T21:35:18.317Z] [INFO] {
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[2026-01-21T21:35:19.141Z] [INFO] {
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"content": " 165β†’ });\n 166β†’\n 167β†’ test('returns NaN for non-numeric string input', () => {\n 168β†’ const result = Session.toNumber('abc' as unknown);\n 169β†’ expect(Number.isNaN(result)).toBe(true);\n 170β†’ });\n 171β†’\n 172β†’ test('returns NaN for undefined input', () => {\n 173β†’ const result = Session.toNumber(undefined);\n 174β†’ expect(Number.isNaN(result)).toBe(true);\n 175β†’ });\n 176β†’\n 177β†’ test('returns NaN for null input', () => {\n 178β†’ const result = Session.toNumber(null);\n 179β†’ expect(Number.isNaN(result)).toBe(true);\n 180β†’ });\n 181β†’\n 182β†’ test('returns NaN for array input with multiple elements', () => {\n 183β†’ const result = Session.toNumber([1, 2, 3] as unknown);\n 184β†’ expect(Number.isNaN(result)).toBe(true);\n 185β†’ });\n 186β†’\n 187β†’ test('returns number for single-element array (Number coercion)', () => {\n 188β†’ // Number([1]) returns 1 in JavaScript\n 189β†’ const result = Session.toNumber([1] as unknown);\n 190β†’ expect(result).toBe(1);\n 191β†’ });\n 192β†’\n 193β†’ test('accepts optional context parameter for debugging', () => {\n 194β†’ // Context parameter should not affect behavior, just for logging\n 195β†’ const result1 = Session.toNumber(42, 'inputTokens');\n 196β†’ const result2 = Session.toNumber(NaN, 'outputTokens');\n 197β†’ expect(result1).toBe(42);\n 198β†’ expect(Number.isNaN(result2)).toBe(true);\n 199β†’ });\n 200β†’\n 201β†’ test('can be used in arithmetic operations', () => {\n 202β†’ const a = Session.toNumber(100);\n 203β†’ const b = Session.toNumber(50);\n 204β†’ const result = (a + b) * 2;\n 205β†’ expect(result).toBe(300);\n 206β†’ });\n 207β†’\n 208β†’ test('NaN propagates through arithmetic', () => {\n 209β†’ const valid = Session.toNumber(100);\n 210β†’ const invalid = Session.toNumber(NaN);\n 211β†’ const result = valid + invalid;\n 212β†’ expect(Number.isNaN(result)).toBe(true);\n 213β†’ });\n 214β†’\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
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[2026-01-21T21:35:24.835Z] [INFO] {
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[2026-01-21T21:35:27.978Z] [INFO] {
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"oldString": " test('returns NaN for undefined input', () => {\n const result = Session.toNumber(undefined);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for null input', () => {\n const result = Session.toNumber(null);\n expect(Number.isNaN(result)).toBe(true);\n });",
"newString": " test('returns 0 for undefined input (issue #127)', () => {\n // undefined is common for optional fields like cachedInputTokens, reasoningTokens\n // toNumber should gracefully return 0 instead of NaN\n const result = Session.toNumber(undefined);\n expect(result).toBe(0);\n });\n\n test('returns 0 for null input (issue #127)', () => {\n // null should be treated the same as undefined - return 0 gracefully\n const result = Session.toNumber(null);\n expect(result).toBe(0);\n });",
"originalFile": "import { test, expect, describe } from 'bun:test';\nimport { Decimal } from 'decimal.js';\nimport { Session } from '../src/session';\n\n/**\n * Unit tests for Session.toDecimal(), Session.toNumber(), and Session.getUsage()\n * These tests verify the fix for issue #119: DecimalError when token data contains\n * non-numeric values (objects, NaN, Infinity).\n *\n * @see https://github.com/link-assistant/agent/issues/119\n */\n\ndescribe('Session.toDecimal() - safe Decimal conversion', () => {\n test('returns valid Decimal for finite positive numbers', () => {\n const result = Session.toDecimal(42);\n expect(result.toNumber()).toBe(42);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns valid Decimal for finite negative numbers', () => {\n const result = Session.toDecimal(-100);\n expect(result.toNumber()).toBe(-100);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns valid Decimal for zero', () => {\n const result = Session.toDecimal(0);\n expect(result.toNumber()).toBe(0);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns valid Decimal for decimal numbers', () => {\n const result = Session.toDecimal(3.14159);\n expect(result.toNumber()).toBeCloseTo(3.14159, 5);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns Decimal(NaN) for NaN input', () => {\n const result = Session.toDecimal(NaN);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(Infinity) for Infinity (Decimal accepts Infinity)', () => {\n const result = Session.toDecimal(Infinity);\n // Decimal.js accepts Infinity and creates Decimal(Infinity)\n expect(result.isNaN()).toBe(false);\n expect(result.isFinite()).toBe(false);\n expect(result.toString()).toBe('Infinity');\n });\n\n test('returns Decimal(-Infinity) for -Infinity (Decimal accepts -Infinity)', () => {\n const result = Session.toDecimal(-Infinity);\n // Decimal.js accepts -Infinity and creates Decimal(-Infinity)\n expect(result.isNaN()).toBe(false);\n expect(result.isFinite()).toBe(false);\n expect(result.toString()).toBe('-Infinity');\n });\n\n test('returns Decimal(NaN) for object input', () => {\n const result = Session.toDecimal({ count: 100 } as unknown);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns valid Decimal for numeric string input (Decimal accepts strings)', () => {\n // Decimal.js supports string input for numbers\n const result = Session.toDecimal('42' as unknown);\n expect(result.toNumber()).toBe(42);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns Decimal(NaN) for non-numeric string input', () => {\n const result = Session.toDecimal('abc' as unknown);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(NaN) for undefined input', () => {\n const result = Session.toDecimal(undefined);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(NaN) for null input', () => {\n const result = Session.toDecimal(null);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(NaN) for array input', () => {\n const result = Session.toDecimal([1, 2, 3] as unknown);\n expect(result.isNaN()).toBe(true);\n });\n\n test('accepts optional context parameter for debugging', () => {\n // Context parameter should not affect behavior, just for logging\n const result1 = Session.toDecimal(42, 'inputTokens');\n const result2 = Session.toDecimal(NaN, 'outputTokens');\n expect(result1.toNumber()).toBe(42);\n expect(result2.isNaN()).toBe(true);\n });\n\n test('can be used in Decimal arithmetic', () => {\n const a = Session.toDecimal(100);\n const b = Session.toDecimal(50);\n const result = a.add(b).mul(2);\n expect(result.toNumber()).toBe(300);\n });\n\n test('NaN propagates through Decimal arithmetic', () => {\n const valid = Session.toDecimal(100);\n const invalid = Session.toDecimal(NaN);\n const result = valid.add(invalid);\n expect(result.isNaN()).toBe(true);\n });\n});\n\ndescribe('Session.toNumber() - safe number conversion', () => {\n test('returns valid number for finite positive numbers', () => {\n const result = Session.toNumber(42);\n expect(result).toBe(42);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns valid number for finite negative numbers', () => {\n const result = Session.toNumber(-100);\n expect(result).toBe(-100);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns valid number for zero', () => {\n const result = Session.toNumber(0);\n expect(result).toBe(0);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns valid number for decimal numbers', () => {\n const result = Session.toNumber(3.14159);\n expect(result).toBeCloseTo(3.14159, 5);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns NaN for NaN input', () => {\n const result = Session.toNumber(NaN);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns Infinity for Infinity input (Number accepts Infinity)', () => {\n const result = Session.toNumber(Infinity);\n expect(Number.isNaN(result)).toBe(false);\n expect(result).toBe(Infinity);\n });\n\n test('returns -Infinity for -Infinity input (Number accepts -Infinity)', () => {\n const result = Session.toNumber(-Infinity);\n expect(Number.isNaN(result)).toBe(false);\n expect(result).toBe(-Infinity);\n });\n\n test('returns NaN for object input', () => {\n const result = Session.toNumber({ count: 100 } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns valid number for numeric string input', () => {\n const result = Session.toNumber('42' as unknown);\n expect(result).toBe(42);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns NaN for non-numeric string input', () => {\n const result = Session.toNumber('abc' as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for undefined input', () => {\n const result = Session.toNumber(undefined);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for null input', () => {\n const result = Session.toNumber(null);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for array input with multiple elements', () => {\n const result = Session.toNumber([1, 2, 3] as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns number for single-element array (Number coercion)', () => {\n // Number([1]) returns 1 in JavaScript\n const result = Session.toNumber([1] as unknown);\n expect(result).toBe(1);\n });\n\n test('accepts optional context parameter for debugging', () => {\n // Context parameter should not affect behavior, just for logging\n const result1 = Session.toNumber(42, 'inputTokens');\n const result2 = Session.toNumber(NaN, 'outputTokens');\n expect(result1).toBe(42);\n expect(Number.isNaN(result2)).toBe(true);\n });\n\n test('can be used in arithmetic operations', () => {\n const a = Session.toNumber(100);\n const b = Session.toNumber(50);\n const result = (a + b) * 2;\n expect(result).toBe(300);\n });\n\n test('NaN propagates through arithmetic', () => {\n const valid = Session.toNumber(100);\n const invalid = Session.toNumber(NaN);\n const result = valid + invalid;\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for empty string', () => {\n const result = Session.toNumber('' as unknown);\n // Number('') is 0 in JavaScript, but we treat empty string as valid\n // Actually, Number('') === 0, so this should return 0\n expect(result).toBe(0);\n });\n\n test('returns NaN for whitespace string', () => {\n // Number(' ') === 0 in JavaScript (whitespace is coerced to 0)\n const result = Session.toNumber(' ' as unknown);\n expect(result).toBe(0);\n });\n});\n\ndescribe('Session.getUsage() - token usage calculation', () => {\n // Mock model with cost information\n const mockModel = {\n id: 'test-model',\n name: 'Test Model',\n provider: 'test',\n cost: {\n input: 3, // $3 per million tokens\n output: 15, // $15 per million tokens\n cache_read: 0.3,\n cache_write: 3.75,\n },\n };\n\n const mockModelNoCost = {\n id: 'test-model-free',\n name: 'Test Model Free',\n provider: 'test',\n // No cost field\n };\n\n test('calculates correctly with valid token data', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n cachedInputTokens: 0,\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(500);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.cache.write).toBe(0);\n // Cost = (1000 * 3 / 1000000) + (500 * 15 / 1000000) = 0.003 + 0.0075 = 0.0105\n expect(result.cost).toBeCloseTo(0.0105, 6);\n });\n\n test('handles NaN in inputTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: NaN,\n outputTokens: 100,\n },\n });\n\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(100);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles Infinity in outputTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: Infinity,\n },\n });\n\n expect(result.tokens.input).toBe(100);\n expect(result.tokens.output).toBe(0); // Sanitized to 0\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles -Infinity in reasoningTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: 100,\n reasoningTokens: -Infinity,\n },\n });\n\n expect(result.tokens.reasoning).toBe(0); // Sanitized to 0\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles undefined token values', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n // All token values undefined\n } as any,\n });\n\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(0);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.cost).toBe(0);\n });\n\n test('handles model without cost information', () => {\n const result = Session.getUsage({\n model: mockModelNoCost as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(500);\n expect(result.cost).toBe(0); // No cost info means 0 cost\n });\n\n test('handles cached token calculation for Anthropic provider', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n cachedInputTokens: 200,\n },\n metadata: {\n anthropic: {\n cacheCreationInputTokens: 100,\n },\n },\n });\n\n // For Anthropic, inputTokens excludes cached, so no subtraction needed\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.cache.read).toBe(200);\n expect(result.tokens.cache.write).toBe(100);\n expect(typeof result.cost).toBe('number');\n });\n\n test('handles cached token calculation for non-Anthropic provider', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n cachedInputTokens: 200,\n },\n // No anthropic/bedrock metadata\n });\n\n // For non-Anthropic, inputTokens includes cached, so subtract\n expect(result.tokens.input).toBe(800); // 1000 - 200\n expect(result.tokens.cache.read).toBe(200);\n });\n\n test('handles all token fields being NaN simultaneously', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: NaN,\n outputTokens: NaN,\n cachedInputTokens: NaN,\n reasoningTokens: NaN,\n },\n });\n\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(0);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.cost).toBe(0);\n });\n\n test('handles large valid token counts', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 500000,\n outputTokens: 100000,\n },\n });\n\n expect(result.tokens.input).toBe(500000);\n expect(result.tokens.output).toBe(100000);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('returns consistent token structure regardless of input validity', () => {\n const validResult = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: 50,\n },\n });\n\n const invalidResult = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: NaN,\n outputTokens: Infinity,\n },\n });\n\n // Both should have same structure\n expect(Object.keys(validResult)).toEqual(Object.keys(invalidResult));\n expect(Object.keys(validResult.tokens)).toEqual(\n Object.keys(invalidResult.tokens)\n );\n expect(Object.keys(validResult.tokens.cache)).toEqual(\n Object.keys(invalidResult.tokens.cache)\n );\n });\n\n test('handles object passed as token value (the original bug scenario)', () => {\n // This is the exact scenario from issue #119 where an object was passed\n // instead of a number, causing [DecimalError] Invalid argument: [object Object]\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { nested: 'object' } as any, // Object instead of number\n outputTokens: 100,\n },\n });\n\n // Should not crash, should return 0 for the invalid field\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(100);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles mixed valid and invalid token values', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000, // valid\n outputTokens: { invalid: true } as any, // invalid object\n cachedInputTokens: Infinity, // invalid\n reasoningTokens: 500, // valid\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.reasoning).toBe(500);\n expect(typeof result.cost).toBe('number');\n });\n\n test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n // This is the exact scenario from issue #125 where an object with 'total' field\n // is returned instead of a plain number on certain Bun versions\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n },\n });\n\n // Should extract 'total' from objects instead of returning 0\n expect(result.tokens.input).toBe(8707);\n expect(result.tokens.output).toBe(9);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n});\n\n/**\n * Unit tests for Session.toNumber() - extended tests for issue #125\n * Tests for handling objects with 'total' field\n *\n * @see https://github.com/link-assistant/agent/issues/125\n */\ndescribe('Session.toNumber() - object with total field (issue #125)', () => {\n test('extracts total from object with total field', () => {\n const result = Session.toNumber({\n total: 8707,\n noCache: 6339,\n cacheRead: 2368,\n } as unknown);\n expect(result).toBe(8707);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('extracts total from object with only total field', () => {\n const result = Session.toNumber({ total: 100 } as unknown);\n expect(result).toBe(100);\n });\n\n test('extracts total from object with nested structure', () => {\n const result = Session.toNumber({\n total: 9,\n text: -119,\n reasoning: 128,\n } as unknown);\n expect(result).toBe(9);\n });\n\n test('returns NaN for object without total field', () => {\n const result = Session.toNumber({ count: 100, value: 200 } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for object with non-numeric total field', () => {\n const result = Session.toNumber({ total: 'not a number' } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('extracts total 0 from object correctly', () => {\n const result = Session.toNumber({ total: 0, other: 100 } as unknown);\n expect(result).toBe(0);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('extracts negative total from object', () => {\n const result = Session.toNumber({ total: -50 } as unknown);\n expect(result).toBe(-50);\n });\n});\n\n/**\n * Unit tests for Session.toFinishReason() - safe conversion of finishReason\n * Tests for handling string, object, and edge cases\n *\n * @see https://github.com/link-assistant/agent/issues/125\n */\ndescribe('Session.toFinishReason() - safe string conversion', () => {\n test('returns string unchanged', () => {\n expect(Session.toFinishReason('stop')).toBe('stop');\n expect(Session.toFinishReason('tool-calls')).toBe('tool-calls');\n expect(Session.toFinishReason('length')).toBe('length');\n });\n\n test('returns \"unknown\" for undefined', () => {\n expect(Session.toFinishReason(undefined)).toBe('unknown');\n });\n\n test('returns \"unknown\" for null', () => {\n expect(Session.toFinishReason(null)).toBe('unknown');\n });\n\n test('extracts type field from object', () => {\n expect(Session.toFinishReason({ type: 'stop' })).toBe('stop');\n expect(Session.toFinishReason({ type: 'tool-calls', other: 'data' })).toBe(\n 'tool-calls'\n );\n });\n\n test('extracts finishReason field from object', () => {\n expect(Session.toFinishReason({ finishReason: 'stop' })).toBe('stop');\n expect(Session.toFinishReason({ finishReason: 'tool-calls' })).toBe(\n 'tool-calls'\n );\n });\n\n test('extracts reason field from object', () => {\n expect(Session.toFinishReason({ reason: 'stop' })).toBe('stop');\n });\n\n test('prioritizes type over finishReason and reason', () => {\n expect(\n Session.toFinishReason({\n type: 'type-value',\n finishReason: 'fr-value',\n reason: 'r-value',\n })\n ).toBe('type-value');\n });\n\n test('falls back to finishReason when type is not a string', () => {\n expect(Session.toFinishReason({ type: 123, finishReason: 'stop' })).toBe(\n 'stop'\n );\n });\n\n test('falls back to reason when type and finishReason are not strings', () => {\n expect(\n Session.toFinishReason({ type: {}, finishReason: null, reason: 'stop' })\n ).toBe('stop');\n });\n\n test('returns JSON for object without recognized fields', () => {\n const result = Session.toFinishReason({ unknown: 'value' });\n expect(result).toBe('{\"unknown\":\"value\"}');\n });\n\n test('converts number to string', () => {\n expect(Session.toFinishReason(123)).toBe('123');\n });\n\n test('converts boolean to string', () => {\n expect(Session.toFinishReason(true)).toBe('true');\n expect(Session.toFinishReason(false)).toBe('false');\n });\n\n test('handles empty object', () => {\n const result = Session.toFinishReason({});\n expect(result).toBe('{}');\n });\n});\n",
"structuredPatch": [
{
"oldStart": 169,
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"newStart": 169,
"newLines": 17,
"lines": [
" expect(Number.isNaN(result)).toBe(true);",
" });",
" ",
"- test('returns NaN for undefined input', () => {",
"+ test('returns 0 for undefined input (issue #127)', () => {",
"+ // undefined is common for optional fields like cachedInputTokens, reasoningTokens",
"+ // toNumber should gracefully return 0 instead of NaN",
" const result = Session.toNumber(undefined);",
"- expect(Number.isNaN(result)).toBe(true);",
"+ expect(result).toBe(0);",
" });",
" ",
"- test('returns NaN for null input', () => {",
"+ test('returns 0 for null input (issue #127)', () => {",
"+ // null should be treated the same as undefined - return 0 gracefully",
" const result = Session.toNumber(null);",
"- expect(Number.isNaN(result)).toBe(true);",
"+ expect(result).toBe(0);",
" });",
" ",
" test('returns NaN for array input with multiple elements', () => {"
]
}
],
"userModified": false,
"replaceAll": false
}
}
[2026-01-21T21:35:34.599Z] [INFO] {
"type": "assistant",
"message": {
"model": "claude-opus-4-5-20251101",
"id": "msg_01HB4NoewLQC5pTqcrDtXMpp",
"type": "message",
"role": "assistant",
"content": [
{
"type": "text",
"text": "Now let me add tests for the nested token extraction. First let me check if there are tests for getUsage:"
}
],
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},
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"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
"uuid": "1b41c6b0-d822-423c-89a6-897fbf54ed33"
}
[2026-01-21T21:35:35.615Z] [INFO] {
"type": "assistant",
"message": {
"model": "claude-opus-4-5-20251101",
"id": "msg_01HB4NoewLQC5pTqcrDtXMpp",
"type": "message",
"role": "assistant",
"content": [
{
"type": "tool_use",
"id": "toolu_01C3csyZ4jqP9R2C8AucMT2A",
"name": "Grep",
"input": {
"pattern": "getUsage",
"path": "/tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts",
"output_mode": "content",
"-n": true
}
}
],
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"uuid": "22f02172-8c23-4e93-9606-f55f51894195"
}
[2026-01-21T21:35:35.675Z] [INFO] {
"type": "user",
"message": {
"role": "user",
"content": [
{
"tool_use_id": "toolu_01C3csyZ4jqP9R2C8AucMT2A",
"type": "tool_result",
"content": "6: * Unit tests for Session.toDecimal(), Session.toNumber(), and Session.getUsage()\n232:describe('Session.getUsage() - token usage calculation', () => {\n254: const result = Session.getUsage({\n273: const result = Session.getUsage({\n288: const result = Session.getUsage({\n303: const result = Session.getUsage({\n318: const result = Session.getUsage({\n332: const result = Session.getUsage({\n346: const result = Session.getUsage({\n368: const result = Session.getUsage({\n384: const result = Session.getUsage({\n402: const result = Session.getUsage({\n417: const validResult = Session.getUsage({\n425: const invalidResult = Session.getUsage({\n446: const result = Session.getUsage({\n462: const result = Session.getUsage({\n482: const result = Session.getUsage({"
}
]
},
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"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
"uuid": "f9c9c4eb-dfb5-40ae-a9fb-496666ede2be",
"tool_use_result": {
"mode": "content",
"numFiles": 0,
"filenames": [],
"content": "6: * Unit tests for Session.toDecimal(), Session.toNumber(), and Session.getUsage()\n232:describe('Session.getUsage() - token usage calculation', () => {\n254: const result = Session.getUsage({\n273: const result = Session.getUsage({\n288: const result = Session.getUsage({\n303: const result = Session.getUsage({\n318: const result = Session.getUsage({\n332: const result = Session.getUsage({\n346: const result = Session.getUsage({\n368: const result = Session.getUsage({\n384: const result = Session.getUsage({\n402: const result = Session.getUsage({\n417: const validResult = Session.getUsage({\n425: const invalidResult = Session.getUsage({\n446: const result = Session.getUsage({\n462: const result = Session.getUsage({\n482: const result = Session.getUsage({",
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[2026-01-21T21:35:38.269Z] [INFO] {
"type": "assistant",
"message": {
"model": "claude-opus-4-5-20251101",
"id": "msg_013pPqKmKwwYssYCKRJ4AJy7",
"type": "message",
"role": "assistant",
"content": [
{
"type": "text",
"text": "Let me read the getUsage tests section to understand the test structure:"
}
],
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},
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[2026-01-21T21:35:38.981Z] [INFO] {
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"content": " 230β†’});\n 231β†’\n 232β†’describe('Session.getUsage() - token usage calculation', () => {\n 233β†’ // Mock model with cost information\n 234β†’ const mockModel = {\n 235β†’ id: 'test-model',\n 236β†’ name: 'Test Model',\n 237β†’ provider: 'test',\n 238β†’ cost: {\n 239β†’ input: 3, // $3 per million tokens\n 240β†’ output: 15, // $15 per million tokens\n 241β†’ cache_read: 0.3,\n 242β†’ cache_write: 3.75,\n 243β†’ },\n 244β†’ };\n 245β†’\n 246β†’ const mockModelNoCost = {\n 247β†’ id: 'test-model-free',\n 248β†’ name: 'Test Model Free',\n 249β†’ provider: 'test',\n 250β†’ // No cost field\n 251β†’ };\n 252β†’\n 253β†’ test('calculates correctly with valid token data', () => {\n 254β†’ const result = Session.getUsage({\n 255β†’ model: mockModel as any,\n 256β†’ usage: {\n 257β†’ inputTokens: 1000,\n 258β†’ outputTokens: 500,\n 259β†’ cachedInputTokens: 0,\n 260β†’ },\n 261β†’ });\n 262β†’\n 263β†’ expect(result.tokens.input).toBe(1000);\n 264β†’ expect(result.tokens.output).toBe(500);\n 265β†’ expect(result.tokens.reasoning).toBe(0);\n 266β†’ expect(result.tokens.cache.read).toBe(0);\n 267β†’ expect(result.tokens.cache.write).toBe(0);\n 268β†’ // Cost = (1000 * 3 / 1000000) + (500 * 15 / 1000000) = 0.003 + 0.0075 = 0.0105\n 269β†’ expect(result.cost).toBeCloseTo(0.0105, 6);\n 270β†’ });\n 271β†’\n 272β†’ test('handles NaN in inputTokens without crashing', () => {\n 273β†’ const result = Session.getUsage({\n 274β†’ model: mockModel as any,\n 275β†’ usage: {\n 276β†’ inputTokens: NaN,\n 277β†’ outputTokens: 100,\n 278β†’ },\n 279β†’ });\n 280β†’\n 281β†’ expect(result.tokens.input).toBe(0);\n 282β†’ expect(result.tokens.output).toBe(100);\n 283β†’ expect(typeof result.cost).toBe('number');\n 284β†’ expect(Number.isFinite(result.cost)).toBe(true);\n 285β†’ });\n 286β†’\n 287β†’ test('handles Infinity in outputTokens without crashing', () => {\n 288β†’ const result = Session.getUsage({\n 289β†’ model: mockModel as any,\n 290β†’ usage: {\n 291β†’ inputTokens: 100,\n 292β†’ outputTokens: Infinity,\n 293β†’ },\n 294β†’ });\n 295β†’\n 296β†’ expect(result.tokens.input).toBe(100);\n 297β†’ expect(result.tokens.output).toBe(0); // Sanitized to 0\n 298β†’ expect(typeof result.cost).toBe('number');\n 299β†’ expect(Number.isFinite(result.cost)).toBe(true);\n 300β†’ });\n 301β†’\n 302β†’ test('handles -Infinity in reasoningTokens without crashing', () => {\n 303β†’ const result = Session.getUsage({\n 304β†’ model: mockModel as any,\n 305β†’ usage: {\n 306β†’ inputTokens: 100,\n 307β†’ outputTokens: 100,\n 308β†’ reasoningTokens: -Infinity,\n 309β†’ },\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
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"content": "});\n\ndescribe('Session.getUsage() - token usage calculation', () => {\n // Mock model with cost information\n const mockModel = {\n id: 'test-model',\n name: 'Test Model',\n provider: 'test',\n cost: {\n input: 3, // $3 per million tokens\n output: 15, // $15 per million tokens\n cache_read: 0.3,\n cache_write: 3.75,\n },\n };\n\n const mockModelNoCost = {\n id: 'test-model-free',\n name: 'Test Model Free',\n provider: 'test',\n // No cost field\n };\n\n test('calculates correctly with valid token data', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n cachedInputTokens: 0,\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(500);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.cache.write).toBe(0);\n // Cost = (1000 * 3 / 1000000) + (500 * 15 / 1000000) = 0.003 + 0.0075 = 0.0105\n expect(result.cost).toBeCloseTo(0.0105, 6);\n });\n\n test('handles NaN in inputTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: NaN,\n outputTokens: 100,\n },\n });\n\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(100);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles Infinity in outputTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: Infinity,\n },\n });\n\n expect(result.tokens.input).toBe(100);\n expect(result.tokens.output).toBe(0); // Sanitized to 0\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles -Infinity in reasoningTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: 100,\n reasoningTokens: -Infinity,\n },",
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[2026-01-21T21:35:41.460Z] [INFO] {
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[2026-01-21T21:35:42.099Z] [INFO] {
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[2026-01-21T21:35:42.127Z] [INFO] {
"type": "user",
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{
"tool_use_id": "toolu_01VqNUZ26GX7Emjo1LVf5bTo",
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"content": " 470β†’ });\n 471β†’\n 472β†’ expect(result.tokens.input).toBe(1000);\n 473β†’ expect(result.tokens.output).toBe(0);\n 474β†’ expect(result.tokens.cache.read).toBe(0);\n 475β†’ expect(result.tokens.reasoning).toBe(500);\n 476β†’ expect(typeof result.cost).toBe('number');\n 477β†’ });\n 478β†’\n 479β†’ test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n 480β†’ // This is the exact scenario from issue #125 where an object with 'total' field\n 481β†’ // is returned instead of a plain number on certain Bun versions\n 482β†’ const result = Session.getUsage({\n 483β†’ model: mockModel as any,\n 484β†’ usage: {\n 485β†’ inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n 486β†’ outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n 487β†’ },\n 488β†’ });\n 489β†’\n 490β†’ // Should extract 'total' from objects instead of returning 0\n 491β†’ expect(result.tokens.input).toBe(8707);\n 492β†’ expect(result.tokens.output).toBe(9);\n 493β†’ expect(typeof result.cost).toBe('number');\n 494β†’ expect(Number.isFinite(result.cost)).toBe(true);\n 495β†’ });\n 496β†’});\n 497β†’\n 498β†’/**\n 499β†’ * Unit tests for Session.toNumber() - extended tests for issue #125\n 500β†’ * Tests for handling objects with 'total' field\n 501β†’ *\n 502β†’ * @see https://github.com/link-assistant/agent/issues/125\n 503β†’ */\n 504β†’describe('Session.toNumber() - object with total field (issue #125)', () => {\n 505β†’ test('extracts total from object with total field', () => {\n 506β†’ const result = Session.toNumber({\n 507β†’ total: 8707,\n 508β†’ noCache: 6339,\n 509β†’ cacheRead: 2368,\n 510β†’ } as unknown);\n 511β†’ expect(result).toBe(8707);\n 512β†’ expect(Number.isNaN(result)).toBe(false);\n 513β†’ });\n 514β†’\n 515β†’ test('extracts total from object with only total field', () => {\n 516β†’ const result = Session.toNumber({ total: 100 } as unknown);\n 517β†’ expect(result).toBe(100);\n 518β†’ });\n 519β†’\n 520β†’ test('extracts total from object with nested structure', () => {\n 521β†’ const result = Session.toNumber({\n 522β†’ total: 9,\n 523β†’ text: -119,\n 524β†’ reasoning: 128,\n 525β†’ } as unknown);\n 526β†’ expect(result).toBe(9);\n 527β†’ });\n 528β†’\n 529β†’ test('returns NaN for object without total field', () => {\n 530β†’ const result = Session.toNumber({ count: 100, value: 200 } as unknown);\n 531β†’ expect(Number.isNaN(result)).toBe(true);\n 532β†’ });\n 533β†’\n 534β†’ test('returns NaN for object with non-numeric total field', () => {\n 535β†’ const result = Session.toNumber({ total: 'not a number' } as unknown);\n 536β†’ expect(Number.isNaN(result)).toBe(true);\n 537β†’ });\n 538β†’\n 539β†’ test('extracts total 0 from object correctly', () => {\n 540β†’ const result = Session.toNumber({ total: 0, other: 100 } as unknown);\n 541β†’ expect(result).toBe(0);\n 542β†’ expect(Number.isNaN(result)).toBe(false);\n 543β†’ });\n 544β†’\n 545β†’ test('extracts negative total from object', () => {\n 546β†’ const result = Session.toNumber({ total: -50 } as unknown);\n 547β†’ expect(result).toBe(-50);\n 548β†’ });\n 549β†’});\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
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"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
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"file": {
"filePath": "/tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts",
"content": " });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.reasoning).toBe(500);\n expect(typeof result.cost).toBe('number');\n });\n\n test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n // This is the exact scenario from issue #125 where an object with 'total' field\n // is returned instead of a plain number on certain Bun versions\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n },\n });\n\n // Should extract 'total' from objects instead of returning 0\n expect(result.tokens.input).toBe(8707);\n expect(result.tokens.output).toBe(9);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n});\n\n/**\n * Unit tests for Session.toNumber() - extended tests for issue #125\n * Tests for handling objects with 'total' field\n *\n * @see https://github.com/link-assistant/agent/issues/125\n */\ndescribe('Session.toNumber() - object with total field (issue #125)', () => {\n test('extracts total from object with total field', () => {\n const result = Session.toNumber({\n total: 8707,\n noCache: 6339,\n cacheRead: 2368,\n } as unknown);\n expect(result).toBe(8707);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('extracts total from object with only total field', () => {\n const result = Session.toNumber({ total: 100 } as unknown);\n expect(result).toBe(100);\n });\n\n test('extracts total from object with nested structure', () => {\n const result = Session.toNumber({\n total: 9,\n text: -119,\n reasoning: 128,\n } as unknown);\n expect(result).toBe(9);\n });\n\n test('returns NaN for object without total field', () => {\n const result = Session.toNumber({ count: 100, value: 200 } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for object with non-numeric total field', () => {\n const result = Session.toNumber({ total: 'not a number' } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('extracts total 0 from object correctly', () => {\n const result = Session.toNumber({ total: 0, other: 100 } as unknown);\n expect(result).toBe(0);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('extracts negative total from object', () => {\n const result = Session.toNumber({ total: -50 } as unknown);\n expect(result).toBe(-50);\n });\n});",
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[2026-01-21T21:35:44.871Z] [INFO] {
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"text": "Now let me see how many lines the file has:"
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[2026-01-21T21:35:45.620Z] [INFO] {
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[2026-01-21T21:35:48.445Z] [INFO] {
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[2026-01-21T21:35:48.485Z] [INFO] {
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"content": " 545β†’ test('extracts negative total from object', () => {\n 546β†’ const result = Session.toNumber({ total: -50 } as unknown);\n 547β†’ expect(result).toBe(-50);\n 548β†’ });\n 549β†’});\n 550β†’\n 551β†’/**\n 552β†’ * Unit tests for Session.toFinishReason() - safe conversion of finishReason\n 553β†’ * Tests for handling string, object, and edge cases\n 554β†’ *\n 555β†’ * @see https://github.com/link-assistant/agent/issues/125\n 556β†’ */\n 557β†’describe('Session.toFinishReason() - safe string conversion', () => {\n 558β†’ test('returns string unchanged', () => {\n 559β†’ expect(Session.toFinishReason('stop')).toBe('stop');\n 560β†’ expect(Session.toFinishReason('tool-calls')).toBe('tool-calls');\n 561β†’ expect(Session.toFinishReason('length')).toBe('length');\n 562β†’ });\n 563β†’\n 564β†’ test('returns \"unknown\" for undefined', () => {\n 565β†’ expect(Session.toFinishReason(undefined)).toBe('unknown');\n 566β†’ });\n 567β†’\n 568β†’ test('returns \"unknown\" for null', () => {\n 569β†’ expect(Session.toFinishReason(null)).toBe('unknown');\n 570β†’ });\n 571β†’\n 572β†’ test('extracts type field from object', () => {\n 573β†’ expect(Session.toFinishReason({ type: 'stop' })).toBe('stop');\n 574β†’ expect(Session.toFinishReason({ type: 'tool-calls', other: 'data' })).toBe(\n 575β†’ 'tool-calls'\n 576β†’ );\n 577β†’ });\n 578β†’\n 579β†’ test('extracts finishReason field from object', () => {\n 580β†’ expect(Session.toFinishReason({ finishReason: 'stop' })).toBe('stop');\n 581β†’ expect(Session.toFinishReason({ finishReason: 'tool-calls' })).toBe(\n 582β†’ 'tool-calls'\n 583β†’ );\n 584β†’ });\n 585β†’\n 586β†’ test('extracts reason field from object', () => {\n 587β†’ expect(Session.toFinishReason({ reason: 'stop' })).toBe('stop');\n 588β†’ });\n 589β†’\n 590β†’ test('prioritizes type over finishReason and reason', () => {\n 591β†’ expect(\n 592β†’ Session.toFinishReason({\n 593β†’ type: 'type-value',\n 594β†’ finishReason: 'fr-value',\n 595β†’ reason: 'r-value',\n 596β†’ })\n 597β†’ ).toBe('type-value');\n 598β†’ });\n 599β†’\n 600β†’ test('falls back to finishReason when type is not a string', () => {\n 601β†’ expect(Session.toFinishReason({ type: 123, finishReason: 'stop' })).toBe(\n 602β†’ 'stop'\n 603β†’ );\n 604β†’ });\n 605β†’\n 606β†’ test('falls back to reason when type and finishReason are not strings', () => {\n 607β†’ expect(\n 608β†’ Session.toFinishReason({ type: {}, finishReason: null, reason: 'stop' })\n 609β†’ ).toBe('stop');\n 610β†’ });\n 611β†’\n 612β†’ test('returns JSON for object without recognized fields', () => {\n 613β†’ const result = Session.toFinishReason({ unknown: 'value' });\n 614β†’ expect(result).toBe('{\"unknown\":\"value\"}');\n 615β†’ });\n 616β†’\n 617β†’ test('converts number to string', () => {\n 618β†’ expect(Session.toFinishReason(123)).toBe('123');\n 619β†’ });\n 620β†’\n 621β†’ test('converts boolean to string', () => {\n 622β†’ expect(Session.toFinishReason(true)).toBe('true');\n 623β†’ expect(Session.toFinishReason(false)).toBe('false');\n 624β†’ });\n 625β†’\n 626β†’ test('handles empty object', () => {\n 627β†’ const result = Session.toFinishReason({});\n 628β†’ expect(result).toBe('{}');\n 629β†’ });\n 630β†’});\n 631β†’\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
}
]
},
"parent_tool_use_id": null,
"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
"uuid": "3b1eb86c-cad2-460b-9249-dd7968b88895",
"tool_use_result": {
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"file": {
"filePath": "/tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts",
"content": " test('extracts negative total from object', () => {\n const result = Session.toNumber({ total: -50 } as unknown);\n expect(result).toBe(-50);\n });\n});\n\n/**\n * Unit tests for Session.toFinishReason() - safe conversion of finishReason\n * Tests for handling string, object, and edge cases\n *\n * @see https://github.com/link-assistant/agent/issues/125\n */\ndescribe('Session.toFinishReason() - safe string conversion', () => {\n test('returns string unchanged', () => {\n expect(Session.toFinishReason('stop')).toBe('stop');\n expect(Session.toFinishReason('tool-calls')).toBe('tool-calls');\n expect(Session.toFinishReason('length')).toBe('length');\n });\n\n test('returns \"unknown\" for undefined', () => {\n expect(Session.toFinishReason(undefined)).toBe('unknown');\n });\n\n test('returns \"unknown\" for null', () => {\n expect(Session.toFinishReason(null)).toBe('unknown');\n });\n\n test('extracts type field from object', () => {\n expect(Session.toFinishReason({ type: 'stop' })).toBe('stop');\n expect(Session.toFinishReason({ type: 'tool-calls', other: 'data' })).toBe(\n 'tool-calls'\n );\n });\n\n test('extracts finishReason field from object', () => {\n expect(Session.toFinishReason({ finishReason: 'stop' })).toBe('stop');\n expect(Session.toFinishReason({ finishReason: 'tool-calls' })).toBe(\n 'tool-calls'\n );\n });\n\n test('extracts reason field from object', () => {\n expect(Session.toFinishReason({ reason: 'stop' })).toBe('stop');\n });\n\n test('prioritizes type over finishReason and reason', () => {\n expect(\n Session.toFinishReason({\n type: 'type-value',\n finishReason: 'fr-value',\n reason: 'r-value',\n })\n ).toBe('type-value');\n });\n\n test('falls back to finishReason when type is not a string', () => {\n expect(Session.toFinishReason({ type: 123, finishReason: 'stop' })).toBe(\n 'stop'\n );\n });\n\n test('falls back to reason when type and finishReason are not strings', () => {\n expect(\n Session.toFinishReason({ type: {}, finishReason: null, reason: 'stop' })\n ).toBe('stop');\n });\n\n test('returns JSON for object without recognized fields', () => {\n const result = Session.toFinishReason({ unknown: 'value' });\n expect(result).toBe('{\"unknown\":\"value\"}');\n });\n\n test('converts number to string', () => {\n expect(Session.toFinishReason(123)).toBe('123');\n });\n\n test('converts boolean to string', () => {\n expect(Session.toFinishReason(true)).toBe('true');\n expect(Session.toFinishReason(false)).toBe('false');\n });\n\n test('handles empty object', () => {\n const result = Session.toFinishReason({});\n expect(result).toBe('{}');\n });\n});\n",
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}
[2026-01-21T21:35:51.205Z] [INFO] {
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"model": "claude-opus-4-5-20251101",
"id": "msg_01Sp4o27wWtn6dtjMWTLjj3a",
"type": "message",
"role": "assistant",
"content": [
{
"type": "text",
"text": "Now let me add new test cases for issue #127 after the issue #125 tests:"
}
],
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[2026-01-21T21:36:06.012Z] [INFO] {
"type": "assistant",
"message": {
"model": "claude-opus-4-5-20251101",
"id": "msg_01Sp4o27wWtn6dtjMWTLjj3a",
"type": "message",
"role": "assistant",
"content": [
{
"type": "tool_use",
"id": "toolu_01AYUpekjWoEyV1vg6WoKjB5",
"name": "Edit",
"input": {
"replace_all": false,
"file_path": "/tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts",
"old_string": " test('handles empty object', () => {\n const result = Session.toFinishReason({});\n expect(result).toBe('{}');\n });\n});",
"new_string": " test('handles empty object', () => {\n const result = Session.toFinishReason({});\n expect(result).toBe('{}');\n });\n});\n\n/**\n * Unit tests for issue #127 - nested token extraction\n * Tests for extracting cacheRead from inputTokens and reasoning from outputTokens\n *\n * @see https://github.com/link-assistant/agent/issues/127\n */\ndescribe('Session.getUsage() - nested token extraction (issue #127)', () => {\n const mockModel = {\n id: 'test-model',\n name: 'Test Model',\n provider: 'test',\n cost: {\n input: 3,\n output: 15,\n cache_read: 0.3,\n cache_write: 3.75,\n },\n };\n\n test('extracts cacheRead from inputTokens object when cachedInputTokens is undefined', () => {\n // This is the exact scenario from issue #127 with opencode/grok-code\n // cachedInputTokens is undefined, but cacheRead is nested inside inputTokens\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 } as any,\n outputTokens: { total: 562, text: -805, reasoning: 1367 } as any,\n // cachedInputTokens is not provided\n },\n });\n\n expect(result.tokens.cache.read).toBe(192);\n // Input should be total minus cacheRead: 12703 - 192 = 12511\n expect(result.tokens.input).toBe(12511);\n });\n\n test('extracts reasoning from outputTokens object when reasoningTokens is undefined', () => {\n // reasoningTokens is undefined, but reasoning is nested inside outputTokens\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 } as any,\n outputTokens: { total: 562, text: -805, reasoning: 1367 } as any,\n // reasoningTokens is not provided\n },\n });\n\n expect(result.tokens.reasoning).toBe(1367);\n expect(result.tokens.output).toBe(562);\n });\n\n test('prefers top-level cachedInputTokens over nested cacheRead', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 1000, cacheRead: 100 } as any,\n outputTokens: 500,\n cachedInputTokens: 200, // Top-level takes precedence\n },\n });\n\n expect(result.tokens.cache.read).toBe(200);\n // Input should be total minus cachedInputTokens: 1000 - 200 = 800\n expect(result.tokens.input).toBe(800);\n });\n\n test('prefers top-level reasoningTokens over nested reasoning', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: { total: 500, reasoning: 100 } as any,\n reasoningTokens: 200, // Top-level takes precedence\n },\n });\n\n expect(result.tokens.reasoning).toBe(200);\n expect(result.tokens.output).toBe(500);\n });\n\n test('handles inputTokens as plain number (no nested cacheRead)', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n // No cachedInputTokens, inputTokens is plain number\n },\n });\n\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.input).toBe(1000);\n });\n\n test('handles outputTokens as plain number (no nested reasoning)', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n // No reasoningTokens, outputTokens is plain number\n },\n });\n\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.output).toBe(500);\n });\n\n test('handles all undefined optional fields gracefully (issue #127 fix)', () => {\n // This tests that toNumber returns 0 for undefined instead of NaN\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n // cachedInputTokens: undefined\n // reasoningTokens: undefined\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(500);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.cache.write).toBe(0);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n});"
}
}
],
"stop_reason": null,
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"usage": {
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},
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"service_tier": "standard"
},
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},
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"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
"uuid": "c9d0b254-5bd1-4392-a866-7f756cf2d4ba"
}
[2026-01-21T21:36:06.039Z] [INFO] {
"type": "user",
"message": {
"role": "user",
"content": [
{
"tool_use_id": "toolu_01AYUpekjWoEyV1vg6WoKjB5",
"type": "tool_result",
"content": "The file /tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts has been updated successfully."
}
]
},
"parent_tool_use_id": null,
"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
"uuid": "a86dca73-bf61-4d77-b700-507c47728b12",
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"filePath": "/tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts",
"oldString": " test('handles empty object', () => {\n const result = Session.toFinishReason({});\n expect(result).toBe('{}');\n });\n});",
"newString": " test('handles empty object', () => {\n const result = Session.toFinishReason({});\n expect(result).toBe('{}');\n });\n});\n\n/**\n * Unit tests for issue #127 - nested token extraction\n * Tests for extracting cacheRead from inputTokens and reasoning from outputTokens\n *\n * @see https://github.com/link-assistant/agent/issues/127\n */\ndescribe('Session.getUsage() - nested token extraction (issue #127)', () => {\n const mockModel = {\n id: 'test-model',\n name: 'Test Model',\n provider: 'test',\n cost: {\n input: 3,\n output: 15,\n cache_read: 0.3,\n cache_write: 3.75,\n },\n };\n\n test('extracts cacheRead from inputTokens object when cachedInputTokens is undefined', () => {\n // This is the exact scenario from issue #127 with opencode/grok-code\n // cachedInputTokens is undefined, but cacheRead is nested inside inputTokens\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 } as any,\n outputTokens: { total: 562, text: -805, reasoning: 1367 } as any,\n // cachedInputTokens is not provided\n },\n });\n\n expect(result.tokens.cache.read).toBe(192);\n // Input should be total minus cacheRead: 12703 - 192 = 12511\n expect(result.tokens.input).toBe(12511);\n });\n\n test('extracts reasoning from outputTokens object when reasoningTokens is undefined', () => {\n // reasoningTokens is undefined, but reasoning is nested inside outputTokens\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 } as any,\n outputTokens: { total: 562, text: -805, reasoning: 1367 } as any,\n // reasoningTokens is not provided\n },\n });\n\n expect(result.tokens.reasoning).toBe(1367);\n expect(result.tokens.output).toBe(562);\n });\n\n test('prefers top-level cachedInputTokens over nested cacheRead', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 1000, cacheRead: 100 } as any,\n outputTokens: 500,\n cachedInputTokens: 200, // Top-level takes precedence\n },\n });\n\n expect(result.tokens.cache.read).toBe(200);\n // Input should be total minus cachedInputTokens: 1000 - 200 = 800\n expect(result.tokens.input).toBe(800);\n });\n\n test('prefers top-level reasoningTokens over nested reasoning', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: { total: 500, reasoning: 100 } as any,\n reasoningTokens: 200, // Top-level takes precedence\n },\n });\n\n expect(result.tokens.reasoning).toBe(200);\n expect(result.tokens.output).toBe(500);\n });\n\n test('handles inputTokens as plain number (no nested cacheRead)', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n // No cachedInputTokens, inputTokens is plain number\n },\n });\n\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.input).toBe(1000);\n });\n\n test('handles outputTokens as plain number (no nested reasoning)', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n // No reasoningTokens, outputTokens is plain number\n },\n });\n\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.output).toBe(500);\n });\n\n test('handles all undefined optional fields gracefully (issue #127 fix)', () => {\n // This tests that toNumber returns 0 for undefined instead of NaN\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n // cachedInputTokens: undefined\n // reasoningTokens: undefined\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(500);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.cache.write).toBe(0);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n});",
"originalFile": "import { test, expect, describe } from 'bun:test';\nimport { Decimal } from 'decimal.js';\nimport { Session } from '../src/session';\n\n/**\n * Unit tests for Session.toDecimal(), Session.toNumber(), and Session.getUsage()\n * These tests verify the fix for issue #119: DecimalError when token data contains\n * non-numeric values (objects, NaN, Infinity).\n *\n * @see https://github.com/link-assistant/agent/issues/119\n */\n\ndescribe('Session.toDecimal() - safe Decimal conversion', () => {\n test('returns valid Decimal for finite positive numbers', () => {\n const result = Session.toDecimal(42);\n expect(result.toNumber()).toBe(42);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns valid Decimal for finite negative numbers', () => {\n const result = Session.toDecimal(-100);\n expect(result.toNumber()).toBe(-100);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns valid Decimal for zero', () => {\n const result = Session.toDecimal(0);\n expect(result.toNumber()).toBe(0);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns valid Decimal for decimal numbers', () => {\n const result = Session.toDecimal(3.14159);\n expect(result.toNumber()).toBeCloseTo(3.14159, 5);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns Decimal(NaN) for NaN input', () => {\n const result = Session.toDecimal(NaN);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(Infinity) for Infinity (Decimal accepts Infinity)', () => {\n const result = Session.toDecimal(Infinity);\n // Decimal.js accepts Infinity and creates Decimal(Infinity)\n expect(result.isNaN()).toBe(false);\n expect(result.isFinite()).toBe(false);\n expect(result.toString()).toBe('Infinity');\n });\n\n test('returns Decimal(-Infinity) for -Infinity (Decimal accepts -Infinity)', () => {\n const result = Session.toDecimal(-Infinity);\n // Decimal.js accepts -Infinity and creates Decimal(-Infinity)\n expect(result.isNaN()).toBe(false);\n expect(result.isFinite()).toBe(false);\n expect(result.toString()).toBe('-Infinity');\n });\n\n test('returns Decimal(NaN) for object input', () => {\n const result = Session.toDecimal({ count: 100 } as unknown);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns valid Decimal for numeric string input (Decimal accepts strings)', () => {\n // Decimal.js supports string input for numbers\n const result = Session.toDecimal('42' as unknown);\n expect(result.toNumber()).toBe(42);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns Decimal(NaN) for non-numeric string input', () => {\n const result = Session.toDecimal('abc' as unknown);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(NaN) for undefined input', () => {\n const result = Session.toDecimal(undefined);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(NaN) for null input', () => {\n const result = Session.toDecimal(null);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(NaN) for array input', () => {\n const result = Session.toDecimal([1, 2, 3] as unknown);\n expect(result.isNaN()).toBe(true);\n });\n\n test('accepts optional context parameter for debugging', () => {\n // Context parameter should not affect behavior, just for logging\n const result1 = Session.toDecimal(42, 'inputTokens');\n const result2 = Session.toDecimal(NaN, 'outputTokens');\n expect(result1.toNumber()).toBe(42);\n expect(result2.isNaN()).toBe(true);\n });\n\n test('can be used in Decimal arithmetic', () => {\n const a = Session.toDecimal(100);\n const b = Session.toDecimal(50);\n const result = a.add(b).mul(2);\n expect(result.toNumber()).toBe(300);\n });\n\n test('NaN propagates through Decimal arithmetic', () => {\n const valid = Session.toDecimal(100);\n const invalid = Session.toDecimal(NaN);\n const result = valid.add(invalid);\n expect(result.isNaN()).toBe(true);\n });\n});\n\ndescribe('Session.toNumber() - safe number conversion', () => {\n test('returns valid number for finite positive numbers', () => {\n const result = Session.toNumber(42);\n expect(result).toBe(42);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns valid number for finite negative numbers', () => {\n const result = Session.toNumber(-100);\n expect(result).toBe(-100);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns valid number for zero', () => {\n const result = Session.toNumber(0);\n expect(result).toBe(0);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns valid number for decimal numbers', () => {\n const result = Session.toNumber(3.14159);\n expect(result).toBeCloseTo(3.14159, 5);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns NaN for NaN input', () => {\n const result = Session.toNumber(NaN);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns Infinity for Infinity input (Number accepts Infinity)', () => {\n const result = Session.toNumber(Infinity);\n expect(Number.isNaN(result)).toBe(false);\n expect(result).toBe(Infinity);\n });\n\n test('returns -Infinity for -Infinity input (Number accepts -Infinity)', () => {\n const result = Session.toNumber(-Infinity);\n expect(Number.isNaN(result)).toBe(false);\n expect(result).toBe(-Infinity);\n });\n\n test('returns NaN for object input', () => {\n const result = Session.toNumber({ count: 100 } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns valid number for numeric string input', () => {\n const result = Session.toNumber('42' as unknown);\n expect(result).toBe(42);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns NaN for non-numeric string input', () => {\n const result = Session.toNumber('abc' as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns 0 for undefined input (issue #127)', () => {\n // undefined is common for optional fields like cachedInputTokens, reasoningTokens\n // toNumber should gracefully return 0 instead of NaN\n const result = Session.toNumber(undefined);\n expect(result).toBe(0);\n });\n\n test('returns 0 for null input (issue #127)', () => {\n // null should be treated the same as undefined - return 0 gracefully\n const result = Session.toNumber(null);\n expect(result).toBe(0);\n });\n\n test('returns NaN for array input with multiple elements', () => {\n const result = Session.toNumber([1, 2, 3] as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns number for single-element array (Number coercion)', () => {\n // Number([1]) returns 1 in JavaScript\n const result = Session.toNumber([1] as unknown);\n expect(result).toBe(1);\n });\n\n test('accepts optional context parameter for debugging', () => {\n // Context parameter should not affect behavior, just for logging\n const result1 = Session.toNumber(42, 'inputTokens');\n const result2 = Session.toNumber(NaN, 'outputTokens');\n expect(result1).toBe(42);\n expect(Number.isNaN(result2)).toBe(true);\n });\n\n test('can be used in arithmetic operations', () => {\n const a = Session.toNumber(100);\n const b = Session.toNumber(50);\n const result = (a + b) * 2;\n expect(result).toBe(300);\n });\n\n test('NaN propagates through arithmetic', () => {\n const valid = Session.toNumber(100);\n const invalid = Session.toNumber(NaN);\n const result = valid + invalid;\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for empty string', () => {\n const result = Session.toNumber('' as unknown);\n // Number('') is 0 in JavaScript, but we treat empty string as valid\n // Actually, Number('') === 0, so this should return 0\n expect(result).toBe(0);\n });\n\n test('returns NaN for whitespace string', () => {\n // Number(' ') === 0 in JavaScript (whitespace is coerced to 0)\n const result = Session.toNumber(' ' as unknown);\n expect(result).toBe(0);\n });\n});\n\ndescribe('Session.getUsage() - token usage calculation', () => {\n // Mock model with cost information\n const mockModel = {\n id: 'test-model',\n name: 'Test Model',\n provider: 'test',\n cost: {\n input: 3, // $3 per million tokens\n output: 15, // $15 per million tokens\n cache_read: 0.3,\n cache_write: 3.75,\n },\n };\n\n const mockModelNoCost = {\n id: 'test-model-free',\n name: 'Test Model Free',\n provider: 'test',\n // No cost field\n };\n\n test('calculates correctly with valid token data', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n cachedInputTokens: 0,\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(500);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.cache.write).toBe(0);\n // Cost = (1000 * 3 / 1000000) + (500 * 15 / 1000000) = 0.003 + 0.0075 = 0.0105\n expect(result.cost).toBeCloseTo(0.0105, 6);\n });\n\n test('handles NaN in inputTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: NaN,\n outputTokens: 100,\n },\n });\n\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(100);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles Infinity in outputTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: Infinity,\n },\n });\n\n expect(result.tokens.input).toBe(100);\n expect(result.tokens.output).toBe(0); // Sanitized to 0\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles -Infinity in reasoningTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: 100,\n reasoningTokens: -Infinity,\n },\n });\n\n expect(result.tokens.reasoning).toBe(0); // Sanitized to 0\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles undefined token values', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n // All token values undefined\n } as any,\n });\n\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(0);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.cost).toBe(0);\n });\n\n test('handles model without cost information', () => {\n const result = Session.getUsage({\n model: mockModelNoCost as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(500);\n expect(result.cost).toBe(0); // No cost info means 0 cost\n });\n\n test('handles cached token calculation for Anthropic provider', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n cachedInputTokens: 200,\n },\n metadata: {\n anthropic: {\n cacheCreationInputTokens: 100,\n },\n },\n });\n\n // For Anthropic, inputTokens excludes cached, so no subtraction needed\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.cache.read).toBe(200);\n expect(result.tokens.cache.write).toBe(100);\n expect(typeof result.cost).toBe('number');\n });\n\n test('handles cached token calculation for non-Anthropic provider', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n cachedInputTokens: 200,\n },\n // No anthropic/bedrock metadata\n });\n\n // For non-Anthropic, inputTokens includes cached, so subtract\n expect(result.tokens.input).toBe(800); // 1000 - 200\n expect(result.tokens.cache.read).toBe(200);\n });\n\n test('handles all token fields being NaN simultaneously', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: NaN,\n outputTokens: NaN,\n cachedInputTokens: NaN,\n reasoningTokens: NaN,\n },\n });\n\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(0);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.cost).toBe(0);\n });\n\n test('handles large valid token counts', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 500000,\n outputTokens: 100000,\n },\n });\n\n expect(result.tokens.input).toBe(500000);\n expect(result.tokens.output).toBe(100000);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('returns consistent token structure regardless of input validity', () => {\n const validResult = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: 50,\n },\n });\n\n const invalidResult = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: NaN,\n outputTokens: Infinity,\n },\n });\n\n // Both should have same structure\n expect(Object.keys(validResult)).toEqual(Object.keys(invalidResult));\n expect(Object.keys(validResult.tokens)).toEqual(\n Object.keys(invalidResult.tokens)\n );\n expect(Object.keys(validResult.tokens.cache)).toEqual(\n Object.keys(invalidResult.tokens.cache)\n );\n });\n\n test('handles object passed as token value (the original bug scenario)', () => {\n // This is the exact scenario from issue #119 where an object was passed\n // instead of a number, causing [DecimalError] Invalid argument: [object Object]\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { nested: 'object' } as any, // Object instead of number\n outputTokens: 100,\n },\n });\n\n // Should not crash, should return 0 for the invalid field\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(100);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles mixed valid and invalid token values', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000, // valid\n outputTokens: { invalid: true } as any, // invalid object\n cachedInputTokens: Infinity, // invalid\n reasoningTokens: 500, // valid\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.reasoning).toBe(500);\n expect(typeof result.cost).toBe('number');\n });\n\n test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n // This is the exact scenario from issue #125 where an object with 'total' field\n // is returned instead of a plain number on certain Bun versions\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n },\n });\n\n // Should extract 'total' from objects instead of returning 0\n expect(result.tokens.input).toBe(8707);\n expect(result.tokens.output).toBe(9);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n});\n\n/**\n * Unit tests for Session.toNumber() - extended tests for issue #125\n * Tests for handling objects with 'total' field\n *\n * @see https://github.com/link-assistant/agent/issues/125\n */\ndescribe('Session.toNumber() - object with total field (issue #125)', () => {\n test('extracts total from object with total field', () => {\n const result = Session.toNumber({\n total: 8707,\n noCache: 6339,\n cacheRead: 2368,\n } as unknown);\n expect(result).toBe(8707);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('extracts total from object with only total field', () => {\n const result = Session.toNumber({ total: 100 } as unknown);\n expect(result).toBe(100);\n });\n\n test('extracts total from object with nested structure', () => {\n const result = Session.toNumber({\n total: 9,\n text: -119,\n reasoning: 128,\n } as unknown);\n expect(result).toBe(9);\n });\n\n test('returns NaN for object without total field', () => {\n const result = Session.toNumber({ count: 100, value: 200 } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for object with non-numeric total field', () => {\n const result = Session.toNumber({ total: 'not a number' } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('extracts total 0 from object correctly', () => {\n const result = Session.toNumber({ total: 0, other: 100 } as unknown);\n expect(result).toBe(0);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('extracts negative total from object', () => {\n const result = Session.toNumber({ total: -50 } as unknown);\n expect(result).toBe(-50);\n });\n});\n\n/**\n * Unit tests for Session.toFinishReason() - safe conversion of finishReason\n * Tests for handling string, object, and edge cases\n *\n * @see https://github.com/link-assistant/agent/issues/125\n */\ndescribe('Session.toFinishReason() - safe string conversion', () => {\n test('returns string unchanged', () => {\n expect(Session.toFinishReason('stop')).toBe('stop');\n expect(Session.toFinishReason('tool-calls')).toBe('tool-calls');\n expect(Session.toFinishReason('length')).toBe('length');\n });\n\n test('returns \"unknown\" for undefined', () => {\n expect(Session.toFinishReason(undefined)).toBe('unknown');\n });\n\n test('returns \"unknown\" for null', () => {\n expect(Session.toFinishReason(null)).toBe('unknown');\n });\n\n test('extracts type field from object', () => {\n expect(Session.toFinishReason({ type: 'stop' })).toBe('stop');\n expect(Session.toFinishReason({ type: 'tool-calls', other: 'data' })).toBe(\n 'tool-calls'\n );\n });\n\n test('extracts finishReason field from object', () => {\n expect(Session.toFinishReason({ finishReason: 'stop' })).toBe('stop');\n expect(Session.toFinishReason({ finishReason: 'tool-calls' })).toBe(\n 'tool-calls'\n );\n });\n\n test('extracts reason field from object', () => {\n expect(Session.toFinishReason({ reason: 'stop' })).toBe('stop');\n });\n\n test('prioritizes type over finishReason and reason', () => {\n expect(\n Session.toFinishReason({\n type: 'type-value',\n finishReason: 'fr-value',\n reason: 'r-value',\n })\n ).toBe('type-value');\n });\n\n test('falls back to finishReason when type is not a string', () => {\n expect(Session.toFinishReason({ type: 123, finishReason: 'stop' })).toBe(\n 'stop'\n );\n });\n\n test('falls back to reason when type and finishReason are not strings', () => {\n expect(\n Session.toFinishReason({ type: {}, finishReason: null, reason: 'stop' })\n ).toBe('stop');\n });\n\n test('returns JSON for object without recognized fields', () => {\n const result = Session.toFinishReason({ unknown: 'value' });\n expect(result).toBe('{\"unknown\":\"value\"}');\n });\n\n test('converts number to string', () => {\n expect(Session.toFinishReason(123)).toBe('123');\n });\n\n test('converts boolean to string', () => {\n expect(Session.toFinishReason(true)).toBe('true');\n expect(Session.toFinishReason(false)).toBe('false');\n });\n\n test('handles empty object', () => {\n const result = Session.toFinishReason({});\n expect(result).toBe('{}');\n });\n});\n",
"structuredPatch": [
{
"oldStart": 628,
"oldLines": 3,
"newStart": 628,
"newLines": 133,
"lines": [
" expect(result).toBe('{}');",
" });",
" });",
"+",
"+/**",
"+ * Unit tests for issue #127 - nested token extraction",
"+ * Tests for extracting cacheRead from inputTokens and reasoning from outputTokens",
"+ *",
"+ * @see https://github.com/link-assistant/agent/issues/127",
"+ */",
"+describe('Session.getUsage() - nested token extraction (issue #127)', () => {",
"+ const mockModel = {",
"+ id: 'test-model',",
"+ name: 'Test Model',",
"+ provider: 'test',",
"+ cost: {",
"+ input: 3,",
"+ output: 15,",
"+ cache_read: 0.3,",
"+ cache_write: 3.75,",
"+ },",
"+ };",
"+",
"+ test('extracts cacheRead from inputTokens object when cachedInputTokens is undefined', () => {",
"+ // This is the exact scenario from issue #127 with opencode/grok-code",
"+ // cachedInputTokens is undefined, but cacheRead is nested inside inputTokens",
"+ const result = Session.getUsage({",
"+ model: mockModel as any,",
"+ usage: {",
"+ inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 } as any,",
"+ outputTokens: { total: 562, text: -805, reasoning: 1367 } as any,",
"+ // cachedInputTokens is not provided",
"+ },",
"+ });",
"+",
"+ expect(result.tokens.cache.read).toBe(192);",
"+ // Input should be total minus cacheRead: 12703 - 192 = 12511",
"+ expect(result.tokens.input).toBe(12511);",
"+ });",
"+",
"+ test('extracts reasoning from outputTokens object when reasoningTokens is undefined', () => {",
"+ // reasoningTokens is undefined, but reasoning is nested inside outputTokens",
"+ const result = Session.getUsage({",
"+ model: mockModel as any,",
"+ usage: {",
"+ inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 } as any,",
"+ outputTokens: { total: 562, text: -805, reasoning: 1367 } as any,",
"+ // reasoningTokens is not provided",
"+ },",
"+ });",
"+",
"+ expect(result.tokens.reasoning).toBe(1367);",
"+ expect(result.tokens.output).toBe(562);",
"+ });",
"+",
"+ test('prefers top-level cachedInputTokens over nested cacheRead', () => {",
"+ const result = Session.getUsage({",
"+ model: mockModel as any,",
"+ usage: {",
"+ inputTokens: { total: 1000, cacheRead: 100 } as any,",
"+ outputTokens: 500,",
"+ cachedInputTokens: 200, // Top-level takes precedence",
"+ },",
"+ });",
"+",
"+ expect(result.tokens.cache.read).toBe(200);",
"+ // Input should be total minus cachedInputTokens: 1000 - 200 = 800",
"+ expect(result.tokens.input).toBe(800);",
"+ });",
"+",
"+ test('prefers top-level reasoningTokens over nested reasoning', () => {",
"+ const result = Session.getUsage({",
"+ model: mockModel as any,",
"+ usage: {",
"+ inputTokens: 1000,",
"+ outputTokens: { total: 500, reasoning: 100 } as any,",
"+ reasoningTokens: 200, // Top-level takes precedence",
"+ },",
"+ });",
"+",
"+ expect(result.tokens.reasoning).toBe(200);",
"+ expect(result.tokens.output).toBe(500);",
"+ });",
"+",
"+ test('handles inputTokens as plain number (no nested cacheRead)', () => {",
"+ const result = Session.getUsage({",
"+ model: mockModel as any,",
"+ usage: {",
"+ inputTokens: 1000,",
"+ outputTokens: 500,",
"+ // No cachedInputTokens, inputTokens is plain number",
"+ },",
"+ });",
"+",
"+ expect(result.tokens.cache.read).toBe(0);",
"+ expect(result.tokens.input).toBe(1000);",
"+ });",
"+",
"+ test('handles outputTokens as plain number (no nested reasoning)', () => {",
"+ const result = Session.getUsage({",
"+ model: mockModel as any,",
"+ usage: {",
"+ inputTokens: 1000,",
"+ outputTokens: 500,",
"+ // No reasoningTokens, outputTokens is plain number",
"+ },",
"+ });",
"+",
"+ expect(result.tokens.reasoning).toBe(0);",
"+ expect(result.tokens.output).toBe(500);",
"+ });",
"+",
"+ test('handles all undefined optional fields gracefully (issue #127 fix)', () => {",
"+ // This tests that toNumber returns 0 for undefined instead of NaN",
"+ const result = Session.getUsage({",
"+ model: mockModel as any,",
"+ usage: {",
"+ inputTokens: 1000,",
"+ outputTokens: 500,",
"+ // cachedInputTokens: undefined",
"+ // reasoningTokens: undefined",
"+ },",
"+ });",
"+",
"+ expect(result.tokens.input).toBe(1000);",
"+ expect(result.tokens.output).toBe(500);",
"+ expect(result.tokens.cache.read).toBe(0);",
"+ expect(result.tokens.reasoning).toBe(0);",
"+ expect(result.tokens.cache.write).toBe(0);",
"+ expect(typeof result.cost).toBe('number');",
"+ expect(Number.isFinite(result.cost)).toBe(true);",
"+ });",
"+});"
]
}
],
"userModified": false,
"replaceAll": false
}
}
[2026-01-21T21:36:10.263Z] [INFO] {
"type": "assistant",
"message": {
"model": "claude-opus-4-5-20251101",
"id": "msg_01PEQqUZ2rZAZXt3sSgnJ1oN",
"type": "message",
"role": "assistant",
"content": [
{
"type": "text",
"text": "Now I also need to update the test at line 491 that expects `input` to be `8707` but with our fix it should now subtract the nested `cacheRead`. Let me check it:"
}
],
"stop_reason": null,
"stop_sequence": null,
"usage": {
"input_tokens": 0,
"cache_creation_input_tokens": 1607,
"cache_read_input_tokens": 93968,
"cache_creation": {
"ephemeral_5m_input_tokens": 1607,
"ephemeral_1h_input_tokens": 0
},
"output_tokens": 2,
"service_tier": "standard"
},
"context_management": null
},
"parent_tool_use_id": null,
"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
"uuid": "9607df90-a1a0-49d7-890c-9a328ca87750"
}
[2026-01-21T21:36:10.925Z] [INFO] {
"type": "assistant",
"message": {
"model": "claude-opus-4-5-20251101",
"id": "msg_01PEQqUZ2rZAZXt3sSgnJ1oN",
"type": "message",
"role": "assistant",
"content": [
{
"type": "tool_use",
"id": "toolu_01XD6FcEZRKXNZSreadXixJe",
"name": "Read",
"input": {
"file_path": "/tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts",
"offset": 477,
"limit": 25
}
}
],
"stop_reason": null,
"stop_sequence": null,
"usage": {
"input_tokens": 0,
"cache_creation_input_tokens": 1607,
"cache_read_input_tokens": 93968,
"cache_creation": {
"ephemeral_5m_input_tokens": 1607,
"ephemeral_1h_input_tokens": 0
},
"output_tokens": 2,
"service_tier": "standard"
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"uuid": "e935be90-de14-4c22-b3cb-11d024b044c4"
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[2026-01-21T21:36:11.059Z] [INFO] {
"type": "user",
"message": {
"role": "user",
"content": [
{
"tool_use_id": "toolu_01XD6FcEZRKXNZSreadXixJe",
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"content": " 477β†’ });\n 478β†’\n 479β†’ test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n 480β†’ // This is the exact scenario from issue #125 where an object with 'total' field\n 481β†’ // is returned instead of a plain number on certain Bun versions\n 482β†’ const result = Session.getUsage({\n 483β†’ model: mockModel as any,\n 484β†’ usage: {\n 485β†’ inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n 486β†’ outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n 487β†’ },\n 488β†’ });\n 489β†’\n 490β†’ // Should extract 'total' from objects instead of returning 0\n 491β†’ expect(result.tokens.input).toBe(8707);\n 492β†’ expect(result.tokens.output).toBe(9);\n 493β†’ expect(typeof result.cost).toBe('number');\n 494β†’ expect(Number.isFinite(result.cost)).toBe(true);\n 495β†’ });\n 496β†’});\n 497β†’\n 498β†’/**\n 499β†’ * Unit tests for Session.toNumber() - extended tests for issue #125\n 500β†’ * Tests for handling objects with 'total' field\n 501β†’ *\n\n<system-reminder>\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to improve or augment the code. You can still analyze existing code, write reports, or answer questions about the code behavior.\n</system-reminder>\n"
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"filePath": "/tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts",
"content": " });\n\n test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n // This is the exact scenario from issue #125 where an object with 'total' field\n // is returned instead of a plain number on certain Bun versions\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n },\n });\n\n // Should extract 'total' from objects instead of returning 0\n expect(result.tokens.input).toBe(8707);\n expect(result.tokens.output).toBe(9);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n});\n\n/**\n * Unit tests for Session.toNumber() - extended tests for issue #125\n * Tests for handling objects with 'total' field\n *",
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[2026-01-21T21:36:14.131Z] [INFO] {
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"message": {
"model": "claude-opus-4-5-20251101",
"id": "msg_01STfQ6pXmDyoBd1b316659A",
"type": "message",
"role": "assistant",
"content": [
{
"type": "text",
"text": "I need to update this test because now we extract cacheRead from the inputTokens object. The input should be `8707 - 2368 = 6339`:"
}
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"usage": {
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[2026-01-21T21:36:19.069Z] [INFO] {
"type": "assistant",
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"model": "claude-opus-4-5-20251101",
"id": "msg_01STfQ6pXmDyoBd1b316659A",
"type": "message",
"role": "assistant",
"content": [
{
"type": "tool_use",
"id": "toolu_011tAd9B9MudabyRdYia28S4",
"name": "Edit",
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"replace_all": false,
"file_path": "/tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts",
"old_string": " test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n // This is the exact scenario from issue #125 where an object with 'total' field\n // is returned instead of a plain number on certain Bun versions\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n },\n });\n\n // Should extract 'total' from objects instead of returning 0\n expect(result.tokens.input).toBe(8707);\n expect(result.tokens.output).toBe(9);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });",
"new_string": " test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n // This is the exact scenario from issue #125 where an object with 'total' field\n // is returned instead of a plain number on certain Bun versions\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n },\n });\n\n // Should extract 'total' from objects instead of returning 0\n // With issue #127 fix, cacheRead (2368) is extracted and subtracted from total\n // input = 8707 - 2368 = 6339\n expect(result.tokens.input).toBe(6339);\n expect(result.tokens.output).toBe(9);\n expect(result.tokens.cache.read).toBe(2368);\n expect(result.tokens.reasoning).toBe(128);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });"
}
}
],
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"cache_creation_input_tokens": 600,
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[2026-01-21T21:36:19.099Z] [INFO] {
"type": "user",
"message": {
"role": "user",
"content": [
{
"tool_use_id": "toolu_011tAd9B9MudabyRdYia28S4",
"type": "tool_result",
"content": "The file /tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts has been updated successfully."
}
]
},
"parent_tool_use_id": null,
"session_id": "550af937-3a6e-4e2d-b006-ae2e73646e47",
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"filePath": "/tmp/gh-issue-solver-1769031083044/js/tests/session-usage.test.ts",
"oldString": " test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n // This is the exact scenario from issue #125 where an object with 'total' field\n // is returned instead of a plain number on certain Bun versions\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n },\n });\n\n // Should extract 'total' from objects instead of returning 0\n expect(result.tokens.input).toBe(8707);\n expect(result.tokens.output).toBe(9);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });",
"newString": " test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n // This is the exact scenario from issue #125 where an object with 'total' field\n // is returned instead of a plain number on certain Bun versions\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n },\n });\n\n // Should extract 'total' from objects instead of returning 0\n // With issue #127 fix, cacheRead (2368) is extracted and subtracted from total\n // input = 8707 - 2368 = 6339\n expect(result.tokens.input).toBe(6339);\n expect(result.tokens.output).toBe(9);\n expect(result.tokens.cache.read).toBe(2368);\n expect(result.tokens.reasoning).toBe(128);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });",
"originalFile": "import { test, expect, describe } from 'bun:test';\nimport { Decimal } from 'decimal.js';\nimport { Session } from '../src/session';\n\n/**\n * Unit tests for Session.toDecimal(), Session.toNumber(), and Session.getUsage()\n * These tests verify the fix for issue #119: DecimalError when token data contains\n * non-numeric values (objects, NaN, Infinity).\n *\n * @see https://github.com/link-assistant/agent/issues/119\n */\n\ndescribe('Session.toDecimal() - safe Decimal conversion', () => {\n test('returns valid Decimal for finite positive numbers', () => {\n const result = Session.toDecimal(42);\n expect(result.toNumber()).toBe(42);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns valid Decimal for finite negative numbers', () => {\n const result = Session.toDecimal(-100);\n expect(result.toNumber()).toBe(-100);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns valid Decimal for zero', () => {\n const result = Session.toDecimal(0);\n expect(result.toNumber()).toBe(0);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns valid Decimal for decimal numbers', () => {\n const result = Session.toDecimal(3.14159);\n expect(result.toNumber()).toBeCloseTo(3.14159, 5);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns Decimal(NaN) for NaN input', () => {\n const result = Session.toDecimal(NaN);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(Infinity) for Infinity (Decimal accepts Infinity)', () => {\n const result = Session.toDecimal(Infinity);\n // Decimal.js accepts Infinity and creates Decimal(Infinity)\n expect(result.isNaN()).toBe(false);\n expect(result.isFinite()).toBe(false);\n expect(result.toString()).toBe('Infinity');\n });\n\n test('returns Decimal(-Infinity) for -Infinity (Decimal accepts -Infinity)', () => {\n const result = Session.toDecimal(-Infinity);\n // Decimal.js accepts -Infinity and creates Decimal(-Infinity)\n expect(result.isNaN()).toBe(false);\n expect(result.isFinite()).toBe(false);\n expect(result.toString()).toBe('-Infinity');\n });\n\n test('returns Decimal(NaN) for object input', () => {\n const result = Session.toDecimal({ count: 100 } as unknown);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns valid Decimal for numeric string input (Decimal accepts strings)', () => {\n // Decimal.js supports string input for numbers\n const result = Session.toDecimal('42' as unknown);\n expect(result.toNumber()).toBe(42);\n expect(result.isNaN()).toBe(false);\n });\n\n test('returns Decimal(NaN) for non-numeric string input', () => {\n const result = Session.toDecimal('abc' as unknown);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(NaN) for undefined input', () => {\n const result = Session.toDecimal(undefined);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(NaN) for null input', () => {\n const result = Session.toDecimal(null);\n expect(result.isNaN()).toBe(true);\n });\n\n test('returns Decimal(NaN) for array input', () => {\n const result = Session.toDecimal([1, 2, 3] as unknown);\n expect(result.isNaN()).toBe(true);\n });\n\n test('accepts optional context parameter for debugging', () => {\n // Context parameter should not affect behavior, just for logging\n const result1 = Session.toDecimal(42, 'inputTokens');\n const result2 = Session.toDecimal(NaN, 'outputTokens');\n expect(result1.toNumber()).toBe(42);\n expect(result2.isNaN()).toBe(true);\n });\n\n test('can be used in Decimal arithmetic', () => {\n const a = Session.toDecimal(100);\n const b = Session.toDecimal(50);\n const result = a.add(b).mul(2);\n expect(result.toNumber()).toBe(300);\n });\n\n test('NaN propagates through Decimal arithmetic', () => {\n const valid = Session.toDecimal(100);\n const invalid = Session.toDecimal(NaN);\n const result = valid.add(invalid);\n expect(result.isNaN()).toBe(true);\n });\n});\n\ndescribe('Session.toNumber() - safe number conversion', () => {\n test('returns valid number for finite positive numbers', () => {\n const result = Session.toNumber(42);\n expect(result).toBe(42);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns valid number for finite negative numbers', () => {\n const result = Session.toNumber(-100);\n expect(result).toBe(-100);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns valid number for zero', () => {\n const result = Session.toNumber(0);\n expect(result).toBe(0);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns valid number for decimal numbers', () => {\n const result = Session.toNumber(3.14159);\n expect(result).toBeCloseTo(3.14159, 5);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns NaN for NaN input', () => {\n const result = Session.toNumber(NaN);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns Infinity for Infinity input (Number accepts Infinity)', () => {\n const result = Session.toNumber(Infinity);\n expect(Number.isNaN(result)).toBe(false);\n expect(result).toBe(Infinity);\n });\n\n test('returns -Infinity for -Infinity input (Number accepts -Infinity)', () => {\n const result = Session.toNumber(-Infinity);\n expect(Number.isNaN(result)).toBe(false);\n expect(result).toBe(-Infinity);\n });\n\n test('returns NaN for object input', () => {\n const result = Session.toNumber({ count: 100 } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns valid number for numeric string input', () => {\n const result = Session.toNumber('42' as unknown);\n expect(result).toBe(42);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('returns NaN for non-numeric string input', () => {\n const result = Session.toNumber('abc' as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns 0 for undefined input (issue #127)', () => {\n // undefined is common for optional fields like cachedInputTokens, reasoningTokens\n // toNumber should gracefully return 0 instead of NaN\n const result = Session.toNumber(undefined);\n expect(result).toBe(0);\n });\n\n test('returns 0 for null input (issue #127)', () => {\n // null should be treated the same as undefined - return 0 gracefully\n const result = Session.toNumber(null);\n expect(result).toBe(0);\n });\n\n test('returns NaN for array input with multiple elements', () => {\n const result = Session.toNumber([1, 2, 3] as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns number for single-element array (Number coercion)', () => {\n // Number([1]) returns 1 in JavaScript\n const result = Session.toNumber([1] as unknown);\n expect(result).toBe(1);\n });\n\n test('accepts optional context parameter for debugging', () => {\n // Context parameter should not affect behavior, just for logging\n const result1 = Session.toNumber(42, 'inputTokens');\n const result2 = Session.toNumber(NaN, 'outputTokens');\n expect(result1).toBe(42);\n expect(Number.isNaN(result2)).toBe(true);\n });\n\n test('can be used in arithmetic operations', () => {\n const a = Session.toNumber(100);\n const b = Session.toNumber(50);\n const result = (a + b) * 2;\n expect(result).toBe(300);\n });\n\n test('NaN propagates through arithmetic', () => {\n const valid = Session.toNumber(100);\n const invalid = Session.toNumber(NaN);\n const result = valid + invalid;\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for empty string', () => {\n const result = Session.toNumber('' as unknown);\n // Number('') is 0 in JavaScript, but we treat empty string as valid\n // Actually, Number('') === 0, so this should return 0\n expect(result).toBe(0);\n });\n\n test('returns NaN for whitespace string', () => {\n // Number(' ') === 0 in JavaScript (whitespace is coerced to 0)\n const result = Session.toNumber(' ' as unknown);\n expect(result).toBe(0);\n });\n});\n\ndescribe('Session.getUsage() - token usage calculation', () => {\n // Mock model with cost information\n const mockModel = {\n id: 'test-model',\n name: 'Test Model',\n provider: 'test',\n cost: {\n input: 3, // $3 per million tokens\n output: 15, // $15 per million tokens\n cache_read: 0.3,\n cache_write: 3.75,\n },\n };\n\n const mockModelNoCost = {\n id: 'test-model-free',\n name: 'Test Model Free',\n provider: 'test',\n // No cost field\n };\n\n test('calculates correctly with valid token data', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n cachedInputTokens: 0,\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(500);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.cache.write).toBe(0);\n // Cost = (1000 * 3 / 1000000) + (500 * 15 / 1000000) = 0.003 + 0.0075 = 0.0105\n expect(result.cost).toBeCloseTo(0.0105, 6);\n });\n\n test('handles NaN in inputTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: NaN,\n outputTokens: 100,\n },\n });\n\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(100);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles Infinity in outputTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: Infinity,\n },\n });\n\n expect(result.tokens.input).toBe(100);\n expect(result.tokens.output).toBe(0); // Sanitized to 0\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles -Infinity in reasoningTokens without crashing', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: 100,\n reasoningTokens: -Infinity,\n },\n });\n\n expect(result.tokens.reasoning).toBe(0); // Sanitized to 0\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles undefined token values', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n // All token values undefined\n } as any,\n });\n\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(0);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.cost).toBe(0);\n });\n\n test('handles model without cost information', () => {\n const result = Session.getUsage({\n model: mockModelNoCost as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(500);\n expect(result.cost).toBe(0); // No cost info means 0 cost\n });\n\n test('handles cached token calculation for Anthropic provider', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n cachedInputTokens: 200,\n },\n metadata: {\n anthropic: {\n cacheCreationInputTokens: 100,\n },\n },\n });\n\n // For Anthropic, inputTokens excludes cached, so no subtraction needed\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.cache.read).toBe(200);\n expect(result.tokens.cache.write).toBe(100);\n expect(typeof result.cost).toBe('number');\n });\n\n test('handles cached token calculation for non-Anthropic provider', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n cachedInputTokens: 200,\n },\n // No anthropic/bedrock metadata\n });\n\n // For non-Anthropic, inputTokens includes cached, so subtract\n expect(result.tokens.input).toBe(800); // 1000 - 200\n expect(result.tokens.cache.read).toBe(200);\n });\n\n test('handles all token fields being NaN simultaneously', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: NaN,\n outputTokens: NaN,\n cachedInputTokens: NaN,\n reasoningTokens: NaN,\n },\n });\n\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(0);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.cost).toBe(0);\n });\n\n test('handles large valid token counts', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 500000,\n outputTokens: 100000,\n },\n });\n\n expect(result.tokens.input).toBe(500000);\n expect(result.tokens.output).toBe(100000);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('returns consistent token structure regardless of input validity', () => {\n const validResult = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 100,\n outputTokens: 50,\n },\n });\n\n const invalidResult = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: NaN,\n outputTokens: Infinity,\n },\n });\n\n // Both should have same structure\n expect(Object.keys(validResult)).toEqual(Object.keys(invalidResult));\n expect(Object.keys(validResult.tokens)).toEqual(\n Object.keys(invalidResult.tokens)\n );\n expect(Object.keys(validResult.tokens.cache)).toEqual(\n Object.keys(invalidResult.tokens.cache)\n );\n });\n\n test('handles object passed as token value (the original bug scenario)', () => {\n // This is the exact scenario from issue #119 where an object was passed\n // instead of a number, causing [DecimalError] Invalid argument: [object Object]\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { nested: 'object' } as any, // Object instead of number\n outputTokens: 100,\n },\n });\n\n // Should not crash, should return 0 for the invalid field\n expect(result.tokens.input).toBe(0);\n expect(result.tokens.output).toBe(100);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n\n test('handles mixed valid and invalid token values', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000, // valid\n outputTokens: { invalid: true } as any, // invalid object\n cachedInputTokens: Infinity, // invalid\n reasoningTokens: 500, // valid\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(0);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.reasoning).toBe(500);\n expect(typeof result.cost).toBe('number');\n });\n\n test('handles object with total field for inputTokens (issue #125 scenario)', () => {\n // This is the exact scenario from issue #125 where an object with 'total' field\n // is returned instead of a plain number on certain Bun versions\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 8707, noCache: 6339, cacheRead: 2368 } as any,\n outputTokens: { total: 9, text: -119, reasoning: 128 } as any,\n },\n });\n\n // Should extract 'total' from objects instead of returning 0\n expect(result.tokens.input).toBe(8707);\n expect(result.tokens.output).toBe(9);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n});\n\n/**\n * Unit tests for Session.toNumber() - extended tests for issue #125\n * Tests for handling objects with 'total' field\n *\n * @see https://github.com/link-assistant/agent/issues/125\n */\ndescribe('Session.toNumber() - object with total field (issue #125)', () => {\n test('extracts total from object with total field', () => {\n const result = Session.toNumber({\n total: 8707,\n noCache: 6339,\n cacheRead: 2368,\n } as unknown);\n expect(result).toBe(8707);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('extracts total from object with only total field', () => {\n const result = Session.toNumber({ total: 100 } as unknown);\n expect(result).toBe(100);\n });\n\n test('extracts total from object with nested structure', () => {\n const result = Session.toNumber({\n total: 9,\n text: -119,\n reasoning: 128,\n } as unknown);\n expect(result).toBe(9);\n });\n\n test('returns NaN for object without total field', () => {\n const result = Session.toNumber({ count: 100, value: 200 } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('returns NaN for object with non-numeric total field', () => {\n const result = Session.toNumber({ total: 'not a number' } as unknown);\n expect(Number.isNaN(result)).toBe(true);\n });\n\n test('extracts total 0 from object correctly', () => {\n const result = Session.toNumber({ total: 0, other: 100 } as unknown);\n expect(result).toBe(0);\n expect(Number.isNaN(result)).toBe(false);\n });\n\n test('extracts negative total from object', () => {\n const result = Session.toNumber({ total: -50 } as unknown);\n expect(result).toBe(-50);\n });\n});\n\n/**\n * Unit tests for Session.toFinishReason() - safe conversion of finishReason\n * Tests for handling string, object, and edge cases\n *\n * @see https://github.com/link-assistant/agent/issues/125\n */\ndescribe('Session.toFinishReason() - safe string conversion', () => {\n test('returns string unchanged', () => {\n expect(Session.toFinishReason('stop')).toBe('stop');\n expect(Session.toFinishReason('tool-calls')).toBe('tool-calls');\n expect(Session.toFinishReason('length')).toBe('length');\n });\n\n test('returns \"unknown\" for undefined', () => {\n expect(Session.toFinishReason(undefined)).toBe('unknown');\n });\n\n test('returns \"unknown\" for null', () => {\n expect(Session.toFinishReason(null)).toBe('unknown');\n });\n\n test('extracts type field from object', () => {\n expect(Session.toFinishReason({ type: 'stop' })).toBe('stop');\n expect(Session.toFinishReason({ type: 'tool-calls', other: 'data' })).toBe(\n 'tool-calls'\n );\n });\n\n test('extracts finishReason field from object', () => {\n expect(Session.toFinishReason({ finishReason: 'stop' })).toBe('stop');\n expect(Session.toFinishReason({ finishReason: 'tool-calls' })).toBe(\n 'tool-calls'\n );\n });\n\n test('extracts reason field from object', () => {\n expect(Session.toFinishReason({ reason: 'stop' })).toBe('stop');\n });\n\n test('prioritizes type over finishReason and reason', () => {\n expect(\n Session.toFinishReason({\n type: 'type-value',\n finishReason: 'fr-value',\n reason: 'r-value',\n })\n ).toBe('type-value');\n });\n\n test('falls back to finishReason when type is not a string', () => {\n expect(Session.toFinishReason({ type: 123, finishReason: 'stop' })).toBe(\n 'stop'\n );\n });\n\n test('falls back to reason when type and finishReason are not strings', () => {\n expect(\n Session.toFinishReason({ type: {}, finishReason: null, reason: 'stop' })\n ).toBe('stop');\n });\n\n test('returns JSON for object without recognized fields', () => {\n const result = Session.toFinishReason({ unknown: 'value' });\n expect(result).toBe('{\"unknown\":\"value\"}');\n });\n\n test('converts number to string', () => {\n expect(Session.toFinishReason(123)).toBe('123');\n });\n\n test('converts boolean to string', () => {\n expect(Session.toFinishReason(true)).toBe('true');\n expect(Session.toFinishReason(false)).toBe('false');\n });\n\n test('handles empty object', () => {\n const result = Session.toFinishReason({});\n expect(result).toBe('{}');\n });\n});\n\n/**\n * Unit tests for issue #127 - nested token extraction\n * Tests for extracting cacheRead from inputTokens and reasoning from outputTokens\n *\n * @see https://github.com/link-assistant/agent/issues/127\n */\ndescribe('Session.getUsage() - nested token extraction (issue #127)', () => {\n const mockModel = {\n id: 'test-model',\n name: 'Test Model',\n provider: 'test',\n cost: {\n input: 3,\n output: 15,\n cache_read: 0.3,\n cache_write: 3.75,\n },\n };\n\n test('extracts cacheRead from inputTokens object when cachedInputTokens is undefined', () => {\n // This is the exact scenario from issue #127 with opencode/grok-code\n // cachedInputTokens is undefined, but cacheRead is nested inside inputTokens\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 } as any,\n outputTokens: { total: 562, text: -805, reasoning: 1367 } as any,\n // cachedInputTokens is not provided\n },\n });\n\n expect(result.tokens.cache.read).toBe(192);\n // Input should be total minus cacheRead: 12703 - 192 = 12511\n expect(result.tokens.input).toBe(12511);\n });\n\n test('extracts reasoning from outputTokens object when reasoningTokens is undefined', () => {\n // reasoningTokens is undefined, but reasoning is nested inside outputTokens\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 12703, noCache: 12511, cacheRead: 192 } as any,\n outputTokens: { total: 562, text: -805, reasoning: 1367 } as any,\n // reasoningTokens is not provided\n },\n });\n\n expect(result.tokens.reasoning).toBe(1367);\n expect(result.tokens.output).toBe(562);\n });\n\n test('prefers top-level cachedInputTokens over nested cacheRead', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: { total: 1000, cacheRead: 100 } as any,\n outputTokens: 500,\n cachedInputTokens: 200, // Top-level takes precedence\n },\n });\n\n expect(result.tokens.cache.read).toBe(200);\n // Input should be total minus cachedInputTokens: 1000 - 200 = 800\n expect(result.tokens.input).toBe(800);\n });\n\n test('prefers top-level reasoningTokens over nested reasoning', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: { total: 500, reasoning: 100 } as any,\n reasoningTokens: 200, // Top-level takes precedence\n },\n });\n\n expect(result.tokens.reasoning).toBe(200);\n expect(result.tokens.output).toBe(500);\n });\n\n test('handles inputTokens as plain number (no nested cacheRead)', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n // No cachedInputTokens, inputTokens is plain number\n },\n });\n\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.input).toBe(1000);\n });\n\n test('handles outputTokens as plain number (no nested reasoning)', () => {\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n // No reasoningTokens, outputTokens is plain number\n },\n });\n\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.output).toBe(500);\n });\n\n test('handles all undefined optional fields gracefully (issue #127 fix)', () => {\n // This tests that toNumber returns 0 for undefined instead of NaN\n const result = Session.getUsage({\n model: mockModel as any,\n usage: {\n inputTokens: 1000,\n outputTokens: 500,\n // cachedInputTokens: undefined\n // reasoningTokens: undefined\n },\n });\n\n expect(result.tokens.input).toBe(1000);\n expect(result.tokens.output).toBe(500);\n expect(result.tokens.cache.read).toBe(0);\n expect(result.tokens.reasoning).toBe(0);\n expect(result.tokens.cache.write).toBe(0);\n expect(typeof result.cost).toBe('number');\n expect(Number.isFinite(result.cost)).toBe(true);\n });\n});\n",
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" // Should extract 'total' from objects instead of returning 0",
"- expect(result.tokens.input).toBe(8707);",
"+ // With issue #127 fix, cacheRead (2368) is extracted and subtracted from total",
"+ // input = 8707 - 2368 = 6339",
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" expect(result.tokens.output).toBe(9);",
"+ expect(result.tokens.cache.read).toBe(2368);",
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[2026-01-21T21:36:34.614Z] [INFO] {
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[2026-01-21T21:40:33.066Z] [INFO] {
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{
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"text": "The CI passed. Let me provide a summary of what was done.\n\n## Summary\n\nI have successfully resolved issue #127 - \"Cannot convert undefined to number: toNumber error - returning NaN\".\n\n### Root Cause Analysis\n\nThe issue had two components:\n1. The `toNumber()` function was treating `undefined`/`null` as error cases, throwing an exception and logging \"toNumber error - returning NaN\" which looked alarming even though the code handled it correctly (via `safeNum()` converting NaN to 0)\n2. The `opencode/grok-code` provider nests cache tokens inside `inputTokens.cacheRead` and reasoning tokens inside `outputTokens.reasoning`, but the code wasn't extracting these nested values\n\n### Changes Made\n\n1. **`js/src/session/index.ts`**:\n - Changed `toNumber()` to return 0 directly for `undefined`/`null` with a clean debug message instead of throwing an error\n - Added extraction of `cacheRead` from nested `inputTokens` object\n - Added extraction of `reasoning` from nested `outputTokens` object\n\n2. **`js/tests/session-usage.test.ts`**:\n - Updated tests to expect 0 instead of NaN for `undefined`/`null`\n - Added new test cases for nested token extraction\n - Updated existing test to reflect the new behavior (input now subtracts nested cacheRead)\n\n3. **Case Study Documentation**:\n - Created `docs/case-studies/issue-127/README.md` with full analysis\n - Saved issue data to `docs/case-studies/issue-127/data/issue-127.json`\n\n4. **Changeset**:\n - Added `js/.changeset/fix-tonumber-undefined.md` for version bump\n\n### Test Results\n- All 76 tests pass\n- Lint and format checks pass\n- CI pipeline passed\n\n### Pull Request\nThe fix is available at: https://github.com/link-assistant/agent/pull/128"
}
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[2026-01-21T21:40:33.090Z] [INFO] {
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"result": "The CI passed. Let me provide a summary of what was done.\n\n## Summary\n\nI have successfully resolved issue #127 - \"Cannot convert undefined to number: toNumber error - returning NaN\".\n\n### Root Cause Analysis\n\nThe issue had two components:\n1. The `toNumber()` function was treating `undefined`/`null` as error cases, throwing an exception and logging \"toNumber error - returning NaN\" which looked alarming even though the code handled it correctly (via `safeNum()` converting NaN to 0)\n2. The `opencode/grok-code` provider nests cache tokens inside `inputTokens.cacheRead` and reasoning tokens inside `outputTokens.reasoning`, but the code wasn't extracting these nested values\n\n### Changes Made\n\n1. **`js/src/session/index.ts`**:\n - Changed `toNumber()` to return 0 directly for `undefined`/`null` with a clean debug message instead of throwing an error\n - Added extraction of `cacheRead` from nested `inputTokens` object\n - Added extraction of `reasoning` from nested `outputTokens` object\n\n2. **`js/tests/session-usage.test.ts`**:\n - Updated tests to expect 0 instead of NaN for `undefined`/`null`\n - Added new test cases for nested token extraction\n - Updated existing test to reflect the new behavior (input now subtracts nested cacheRead)\n\n3. **Case Study Documentation**:\n - Created `docs/case-studies/issue-127/README.md` with full analysis\n - Saved issue data to `docs/case-studies/issue-127/data/issue-127.json`\n\n4. **Changeset**:\n - Added `js/.changeset/fix-tonumber-undefined.md` for version bump\n\n### Test Results\n- All 76 tests pass\n- Lint and format checks pass\n- CI pipeline passed\n\n### Pull Request\nThe fix is available at: https://github.com/link-assistant/agent/pull/128",
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[2026-01-21T21:40:33.090Z] [INFO] πŸ’° Anthropic official cost captured from success result: $3.539643
[2026-01-21T21:40:33.091Z] [INFO] {
"type": "system",
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"summary": "Background command \"Install dependencies\" completed (exit code 0)",
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"uuid": "cb39ff47-ad1b-4c9c-8afe-6beb969b6655"
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[2026-01-21T21:40:33.508Z] [INFO]
βœ… Claude command completed
[2026-01-21T21:40:33.509Z] [INFO] πŸ“Š Total messages: 0, Tool uses: 0
[2026-01-21T21:40:33.655Z] [INFO]
πŸ’° Token Usage Summary:
[2026-01-21T21:40:33.656Z] [INFO]
πŸ“Š Claude Opus 4.5:
[2026-01-21T21:40:33.657Z] [INFO] Model ID: claude-opus-4-5-20251101
[2026-01-21T21:40:33.658Z] [INFO] Provider: Anthropic
[2026-01-21T21:40:33.658Z] [INFO] Context window: 200 000 tokens
[2026-01-21T21:40:33.659Z] [INFO] Max output: 64 000 tokens
[2026-01-21T21:40:33.659Z] [INFO] Input modalities: text, image, pdf
[2026-01-21T21:40:33.659Z] [INFO] Output modalities: text
[2026-01-21T21:40:33.659Z] [INFO] Knowledge cutoff: 2025-03-31
[2026-01-21T21:40:33.660Z] [INFO] Released: 2025-11-01
[2026-01-21T21:40:33.660Z] [INFO] Capabilities: Attachments, Reasoning, Temperature, Tool calls
[2026-01-21T21:40:33.660Z] [INFO] Open weights: No
[2026-01-21T21:40:33.660Z] [INFO]
[2026-01-21T21:40:33.661Z] [INFO] Usage:
[2026-01-21T21:40:33.661Z] [INFO] Input tokens: 4
[2026-01-21T21:40:33.661Z] [INFO] Cache creation tokens: 174 010
[2026-01-21T21:40:33.661Z] [INFO] Cache read tokens: 8 263 900
[2026-01-21T21:40:33.662Z] [INFO] Output tokens: 686
[2026-01-21T21:40:33.662Z] [INFO]
[2026-01-21T21:40:33.663Z] [INFO] Cost Calculation (USD):
[2026-01-21T21:40:33.663Z] [INFO] Input: 4 tokens Γ— $5/M = $0.000020
[2026-01-21T21:40:33.664Z] [INFO] Cache write: 174 010 tokens Γ— $6.25/M = $1.087562
[2026-01-21T21:40:33.664Z] [INFO] Cache read: 8 263 900 tokens Γ— $0.5/M = $4.131950
[2026-01-21T21:40:33.664Z] [INFO] Output: 686 tokens Γ— $25/M = $0.017150
[2026-01-21T21:40:33.664Z] [INFO] ─────────────────────────────────
[2026-01-21T21:40:33.665Z] [INFO] Total: $5.236682
[2026-01-21T21:40:33.665Z] [INFO]
πŸ“Š Token Budget Statistics:
[2026-01-21T21:40:33.665Z] [INFO] Context window:
[2026-01-21T21:40:33.665Z] [INFO] Used: 8 437 914 tokens
[2026-01-21T21:40:33.666Z] [INFO] Limit: 200 000 tokens
[2026-01-21T21:40:33.666Z] [INFO] Ratio: 42.1896 (4218.96%)
[2026-01-21T21:40:33.666Z] [INFO] Output tokens:
[2026-01-21T21:40:33.666Z] [INFO] Used: 686 tokens
[2026-01-21T21:40:33.667Z] [INFO] Limit: 64 000 tokens
[2026-01-21T21:40:33.667Z] [INFO] Ratio: 0.0107 (1.07%)
[2026-01-21T21:40:33.667Z] [INFO] Total session tokens: 174 700
[2026-01-21T21:40:33.668Z] [INFO]
πŸ’° Cost estimation:
[2026-01-21T21:40:33.668Z] [INFO] Public pricing estimate: $5.236682 USD
[2026-01-21T21:40:33.668Z] [INFO] Calculated by Anthropic: $3.539643 USD
[2026-01-21T21:40:33.669Z] [INFO] Difference: $-1.697039 (-32.41%)
[2026-01-21T21:40:33.669Z] [INFO] Total tokens: 174 700
[2026-01-21T21:40:33.669Z] [INFO]
πŸ’‘ To continue this session in Claude Code interactive mode:
[2026-01-21T21:40:33.669Z] [INFO] (cd "/tmp/gh-issue-solver-1769031083044" && claude --resume 550af937-3a6e-4e2d-b006-ae2e73646e47 --model opus)
[2026-01-21T21:40:33.670Z] [INFO]
πŸ” Checking for uncommitted changes...
[2026-01-21T21:40:33.716Z] [INFO] βœ… No uncommitted changes found
[2026-01-21T21:40:33.757Z] [INFO] πŸ”„ Cleanup: Reverting CLAUDE.md commit
[2026-01-21T21:40:33.757Z] [INFO] Using saved commit hash: 610719f...
[2026-01-21T21:40:33.758Z] [INFO] Checking if CLAUDE.md was modified since initial commit...
[2026-01-21T21:40:33.800Z] [INFO] No modifications detected, using standard git revert...
[2026-01-21T21:40:33.865Z] [INFO] πŸ“¦ Committed: CLAUDE.md revert
[2026-01-21T21:40:34.780Z] [INFO] πŸ“€ Pushed: CLAUDE.md revert to GitHub
[2026-01-21T21:40:34.781Z] [INFO]
=== Session Summary ===
[2026-01-21T21:40:34.781Z] [INFO] βœ… Session ID: 550af937-3a6e-4e2d-b006-ae2e73646e47
[2026-01-21T21:40:34.782Z] [INFO] βœ… Complete log file: /home/hive/550af937-3a6e-4e2d-b006-ae2e73646e47.log
[2026-01-21T21:40:34.782Z] [INFO]
[2026-01-21T21:40:34.782Z] [INFO] πŸ’‘ To continue this session in Claude Code interactive mode:
[2026-01-21T21:40:34.782Z] [INFO]
[2026-01-21T21:40:34.782Z] [INFO] (cd "/tmp/gh-issue-solver-1769031083044" && claude --resume 550af937-3a6e-4e2d-b006-ae2e73646e47 --model opus)
[2026-01-21T21:40:34.783Z] [INFO]
[2026-01-21T21:40:34.783Z] [INFO]
πŸ” Searching for created pull requests or comments...
[2026-01-21T21:40:35.103Z] [INFO]
πŸ” Checking for pull requests from branch issue-127-8d957d9dd1ee...
[2026-01-21T21:40:35.472Z] [INFO] βœ… Found pull request #128: "Fix toNumber NaN for undefined and extract nested tokens"
[2026-01-21T21:40:36.046Z] [INFO] βœ… PR body already contains issue reference
[2026-01-21T21:40:36.047Z] [INFO] βœ… PR is already ready for review
[2026-01-21T21:40:36.047Z] [INFO]
πŸ“Ž Uploading solution draft log to Pull Request...
[2026-01-21T21:40:36.124Z] [INFO] πŸ’° Calculated cost: $5.236682
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