Source Intelligence

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

All of v2.1.219 Home All releases olderv2.1.218 v2.1.220newer
Claude Code v2.1.219

New transcript helper for unresolved tool_use lookups

Under the hood
Useful2 Signal0
Elsewhere

Looking up an unfinished tool call in the transcript now logs a warning instead of erroring out.

What

A helper that scans the current transcript for an unresolved tool_use id was added, with non-throwing failure behaviour.

Details
  • when nothing is found, or the transcript cannot be read, it logs a warning naming the transcript path and message count
  • it returns null in those cases rather than throwing
Evidence

findUnresolvedToolUse: failed to read transcript

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.219 →