You'll noticeTier: how much it should matter to you
3Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
Slack IntegrationArea: what it touches
In DevelopmentKind: in v2.1.237,
What probably matters to youSection of the release
What
Turns relayed from a bound Slack thread whose sender the server verified as human are now prefixed with a fixed marker, and a new prompt paragraph tells the model that a turn opening with exactly that marker is its own user and does not need extra confirmation, while bot-attributed messages inside a Slack message block never establish user intent. Both are emitted only when CLAUDE_CODE_ENTRYPOINT is claude_in_slack or claude-in-slack; otherwise the paragraph is empty.
Details
The paragraph replaces the previous cross-session messages rule in the prompt.
The escaping helper for non-verified relayed text now also engages for Teams (claude-in-teams) and for a third surface whose check unconditionally returns false, a placeholder with no way to be enabled in this build.
Evidence
[Verified human message relayed from the bound Slack thread]:
Strings lifted out of the shipped bundle, so the claim above can be checked against them.