Source Intelligence
Follow Discord
Reading a new release v2.1.251 Analysing changes · 2/5 Deeper second pass · 4/5 agents 427 findings $12.75 so far

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 v2.1.205 Home All releases ←olderv2.1.204 v2.1.206newer→
Claude Code v2.1.205

EndConversation model tool

What

Claude can now end a conversation itself using an EndConversation tool, surfacing clear messaging to the user.

Details
  • When the model invokes EndConversation, users see "Claude ended this conversation. Start a new session (or /clear) to continue."
  • A transcript entry with "type":"ended-by-model" is appended so the event is recorded
  • Sessions ended by the model are tracked separately from user-terminated sessions in fleet state
Evidence

End-of-conversation user message (search for "Claude ended this conversation") — mP_() at line ~745953 and Nnt() at line ~504796

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

See this entry in the whole of v2.1.205 →