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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 v2.1.40 Home All releases olderv2.1.39 v2.1.41newer
Claude Code v2.1.40

LLM-Generated Session Names

What

/rename can now auto-generate kebab-case session names from conversation context.

Usage
/rename          # Auto-generates name from conversation
/rename my-name  # Still accepts manual names
Details
  • Generates 2-4 word kebab-case names (e.g., "fix-login-bug", "add-auth-feature")
  • Shows "Could not generate a name: no conversation context yet" if no messages exist
  • Falls back to manual name requirement if generation fails
Evidence

LLM name generation (search for "Generate a short kebab-case name", "no conversation context yet")

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

See this entry in the whole of v2.1.40 →