This is a Pi coding agent session from the pi-packages monorepo, dated 2026-05-18. The agent (Claude Opus) was executing issue #54 — decompose a 1,619-line src/index.ts in the pi-subagents package into smaller modules.
The session runs the full /plan-issue → /tdd-plan flow. Four TDD cycles complete cleanly (RED → GREEN → commit), extracting tools/helpers.ts, renderer.ts, notification.ts, and tools/get-result-tool.ts. Then TDD step 5 — extracting the steer_subagent tool — hits a wall.
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