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 v2.1.247 Home All releases olderv2.1.246 v2.1.248newer
Claude Code v2.1.247

Fact and rule engine callbacks are scheduled rather than queued as microtasks

Under the hood
Useful1 Signal2
Elsewhere

Rule callbacks now run when the host schedules them instead of all at once.

What

Rules now fire through a schedulable hook instead of all landing in the next microtask, so the host decides when they run. Pending accounting, deduplication and error logging are unchanged.

Evidence

world: admission aborted

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

See this entry in the whole of v2.1.247 →