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 v2.1.248 Home All releases olderv2.1.247 v2.1.250newer
Claude Code v2.1.248

Repeated identical Artifact failures now get a stop-trying instruction

You'll notice
Useful3 Signal2
Artifacts

After repeating the same artifact error, Claude is told to stop retrying and tell you.

What

After the model hits the same Artifact error reason several times in a session, it is told not to repeat the call: either make the specific change the error describes, or stop calling Artifact and tell you what happened.

Details
  • Two variants share a common prefix: one pushes for the corrective change, the other ends the attempts and reports back to the user.
  • Triggered by a count of same-reason rejections within one session.
Evidence

Do not send the same call again: either make the specific change the error describes

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

See this entry in the whole of v2.1.248 →