You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
Multi-SessionArea: what it touches
Internal ChangesKind: in v2.1.236,
Internal ChangesSection of the release
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.
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeAdded notify_when_idle to cross-session SendMessage: ask another Claude Code session on this machine to send one notice when it next goes…