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 v2.1.236 Home All releases olderv2.1.235 v2.1.237newer
Claude Code v2.1.236

Idle notices queue behind earlier peer messages

You'll notice
Useful2 Signal3
Multi-Session

Idle notices from other sessions now wait their turn behind earlier peer messages.

What

Idle notifications used to take the fast out-of-band path used by all control messages between sessions; they now go through the ordered processing chain instead, so an idle notice cannot overtake peer messages queued before it.

Details
  • Only the idle-notice action is excluded from the fast path; other control messages still use it.
  • Reachable when cross-session peer messaging is in use.
Evidence

(e.type === "control" && e.action !== "notify_when_idle")

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 v2.1.236 →