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Sweep 22 Oct 2026 · 21:04Z Build v2.1.309 528 read Stable v2.1.308 Latest v2.1.309 Next v2.1.309 Feeds RSS JSON llms.txt llms-full.txt Unofficial

Claude Code v2.1.219 ·

New transcript helper for unresolved tool_use lookups

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

Under the hood Internal Changes
JSON All of v2.1.219
Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
0Signal: worth watching, 1 to 5
ElsewhereArea: what it touches
Internal ChangesKind: in v2.1.219,
Internal ChangesSection of the release
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.

How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeAdded nested subagent forwarding in stream-json: subagents spawned at depth-2+ now appear when --forward-subagent-text is set, keyed by…

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