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 v2.1.237 Home All releases olderv2.1.236 v2.1.238newer
Claude Code v2.1.237

Verified-human marker for Slack-relayed turns, plus a stubbed third relay surface

You'll notice
Useful3 Signal4
Slack Integration not in their notes

Slack turns from a server-verified human get a marker so Claude treats them as you without extra confirmation.

CLAUDE_CODE_ENTRYPOINT
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.

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 v2.1.237 →