Tutorials
TodoWrite No Longer Available: Claude Code's 2.1.233 Tool Gate (2026)
"TodoWrite no longer available" is not a bug. Claude Code v2.1.233 drops the five task-tracking tools on Sonnet 5 and newer unless you opt in. The gate follows the session, not the model, and the SDK opt-in line behaves differently in TypeScript and Python (2026).
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