Update Claude Workflows to Claude Sonnet 4.5

claude-sonnet-4-5-workflow-update.md

Update GitHub Claude Workflows to Sonnet 4.5

Tell this to your Claude Code or Codex Cloud

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Summary

• Both Claude automation workflows explicitly request the claude-sonnet-4-5-20250929 model when calling anthropics/claude-code-action@v1, ensuring consistent behavior across general and review scenarios.

Files to Update

• .github/workflows/claude.yml – adjust the Run Claude Code step so its claude_args contains only --model claude-sonnet-4-5-20250929 unless additional flags are required.
• .github/workflows/claude-code-review.yml – keep the existing allowed-tools string but ensure the same model flag is the first argument in claude_args.

Step-by-Step Instructions

1. Open .github/workflows/claude.yml. In the Run Claude Code step, set claude_args to --model claude-sonnet-4-5-20250929, preserving every other setting in the workflow.
2. Open .github/workflows/claude-code-review.yml. In the Run Claude Code Review step, update the claude_args string so it starts with --model claude-sonnet-4-5-20250929 while leaving the quoted --allowed-tools list untouched.
3. Save both workflow files, commit with a message such as Add model argument to Claude workflows, and push the branch.
4. Open a PR describing that the general and review Claude workflows now request the Sonnet 4.5 model.