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

Hook failures report status and stderr

You'll notice
Useful4 Signal2
Hooks

Hook parse errors now show the exit status and whatever your hook printed to stderr.

What

When a hook's output cannot be parsed and it exited with a status other than 2, the error now includes the exit status and the hook's stderr rather than only the bare parse complaint, so you can see what the hook actually printed.

Evidence

completed with status

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 v2.1.248 →