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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 v2.1.223

Feedback drafts gained failure-mode and task-category fields

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Feedback

Feedback now lets you tag a failure mode and task category, cycled with the arrow keys.

What

SendFeedback drafts, the review UI, the rendered feedback body and two telemetry events all gained failure_mode and task_category classification.

Details
  • failure_mode is a closed list of 16 model-behaviour issues including instruction_following, destructive_actions, repetition_and_looping, overconfidence_and_hallucination, stopping_short, overeager, subagent_overspawn, tone_or_preachiness and other
  • task_category is one of code_edit, debug, explain, plan, shell, search, review, other
  • both are optional; left and right arrow keys cycle them in the review screen
  • the tool prompt instructs the model to set failure_mode only for model-behaviour reports and omit it for pure product bugs
  • tengu_feedback_draft_submitted now reports both fields
Evidence

When the report is about MODEL BEHAVIOR (not a product bug), the closest failure mode, overconfidence_and_hallucination, task_category

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 v2.1.223 →