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 v2.1.246 Home All releases olderv2.1.245 v2.1.247newer
Claude Code v2.1.246

Hook engine tracks which hook withheld each method

Under the hood
Useful2 Signal2
Hooks

The hook engine tracks which hook held back a method so it can be restored properly.

What

The function-hooks engine records the hook that withheld each engine method, so the original withholder can restore it instead of hitting an error, and the error raised on a replacement attempt now names who withheld it.

Evidence

; to change what a method does, hook the method

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 v2.1.246 →