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

Background task output files copied more safely, and failures now surface

You'll notice
Useful3 Signal2
Background Tasks

Background task output files move more safely and now report failures instead of hiding them.

What

When a background task's output file resolves outside the expected directory and has to be moved back into it, the copy now refuses to follow symlinks, refuses to overwrite an existing file, verifies the file identity before and after, and copies in bounded chunks. If anything goes wrong after the initial safety check the operation now fails with a clear reroot error instead of silently swallowing it.

Details
  • Applies to background and bash task output-path handling, with no gate.
Evidence

reroot failed after the gate

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 v2.1.251 →