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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.

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Claude Code v2.1.222 4 Aug 2026

Mismatched permission replies are logged and dropped

You'll notice

Useful3 Signal0

Permissions

A permission answer meant for one tool can no longer accidentally approve a different tool call.

What

A permission response whose tool name does not match the pending request is now rejected with a warning instead of resolving the wrong tool call.

Details

New helper hasCanUseToolNameMismatch guards three paths: injectControlResponse, the resolve path, and the transcript-side matcher.

Evidence

does not match pending

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

See this entry in the whole of v2.1.222 →