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 v2.1.242 Home All releases olderv2.1.241 v2.1.243newer
Claude Code v2.1.242

Transcript storage failures now say which system error caused them

Under the hood
Useful2 Signal2
Sessions

Transcript save errors now name the underlying system error, so a failed write says why.

What

Errors saving transcripts carry the underlying operating-system error code and a telemetry code in their message, so a failed append, move or folder creation identifies its cause.

Details
  • A folder-creation variant was added alongside the existing append and move errors.
  • A check that withholds an append when the target file is missing now reports "onlyIfExists stat failed (…) — append withheld".
Evidence

transcript storage folder creation failed

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

See this entry in the whole of v2.1.242 →