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 v2.1.221 Home All releases olderv2.1.220 v2.1.222newer

Session titles are normalised and blank titles rejected

You'll notice
Useful2 Signal0
Sessions

Session titles are trimmed and cleaned, and blank ones are simply ignored instead of set.

--name
What

Setting a session title now trims and sanitises the string first, and returns null without setting anything if nothing survives.

Details
  • Applies to titles from hooks, from the user, and from automatic naming.
  • The hook path no longer writes the name separately through the older two-call route.
  • The shared helper now handles --name propagation for non-auto sources.
Evidence

nameSource: "user"

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 v2.1.221 →