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.

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Claude Code v2.1.248

Monitor tool defined but conditionally available

Not switched on
Useful2 Signal5
Tools Notable

A Monitor tool is fully defined, telling Claude it will be notified on each event.

The Monitor tool is described in full but conditionally available.

What

A Monitor tool is now fully described in the build: user-facing name "Monitor", allowed to run code, results capped at 10,000 characters, deferrable, safe to run concurrently, and it tells the model it will be notified on each event so it should keep working rather than poll.

Details
  • Availability is the conjunction of two runtime checks, so the tool is not unconditionally on; neither check is resolved in this build.
Evidence

You will be notified on each event. Keep working — do not poll or sleep.

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 →