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 v2.1.227 Home All releases olderv2.1.226 v2.1.228newer
Claude Code v2.1.227

Hook messages are labelled with the hook that produced them

You'll notice
Useful3 Signal2
Hooks

Hook output is now labelled with the hook's name on every line.

What

Output from a hook is now shown as a notice with the hook's name and says: in front of every line, with line endings normalised and control characters stripped from both the name and the text.

Details
  • Emitted as an informational system message at notice level.
  • Stripping applies to the hook name too, so a hook cannot smuggle escape sequences into the label.
Evidence

says:

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 v2.1.227 →