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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.

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Claude Code v2.1.232

Forked skills and custom agents get an explicitly computed tool list

Under the hood
Useful3 Signal3
Subagents

Forked agents get their tool list computed for them, which decides whether they can fetch web pages.

What

A child agent no longer inherits its parent's tool list verbatim; setup now computes the list for it, which is what decides whether a forked agent can use WebFetch.

Details
  • Setup returns both the tool list and a flag for whether WebFetch may be re-admitted.
  • When re-admission is allowed the list is recomputed using the agent's nesting depth and the set of currently active agents.
Evidence

webFetchReadmissionAllowed

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 v2.1.232 →