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 v2.1.251 Home All releases olderv2.1.250
Claude Code v2.1.251

Resumed sessions repair assistant messages missing an id

You'll notice
Useful3 Signal2
Sessions

Old sessions with malformed assistant messages now resume cleanly instead of coming back broken.

What

Assistant messages saved without an internal message id, an artifact of older stream-json input handling, are now given a generated id when a session is resumed instead of coming back broken.

Details
  • Runs unconditionally on the resume path and logs how many entries it stamped.
  • Tracked upstream as issue #61940.
Evidence

stamped a message.id on ${y} id-less assistant entr

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

See this entry in the whole of v2.1.251 →