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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

/btw answers can now show a refusal-fallback notice

Use it now
Useful3 Signal0
Slash Commands

If a /btw answer came from a fallback model after a refusal, you now see a warning.

/btw
What

When a /btw question is answered by a fallback model after a refusal, the panel shows a warning notice above the answer naming the swap.

Details
  • The panel accepts initialFallbackNotice and stores a fallbackNotice alongside each question/response pair in its history
  • The notice renders prefixed with a warning sign, above the answer
  • Text comes from a refusal_fallback payload returned with the response, carrying original_model, fallback_model and content (truncated)
Usage
/btw what does this repo use for tests?
Evidence

initialFallbackNotice

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

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.222 →