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 v2.1.248 Home All releases olderv2.1.247 v2.1.250newer
Claude Code v2.1.248

Text a client already composed is no longer re-parsed as a slash command

You'll notice
Useful3 Signal3
Slash Commands

Text your client already composed is sent as written, even if it starts with a slash.

What

Messages arriving with client_composed set are now enqueued with slash-command parsing skipped, so a message that happens to start with / is sent as written. Messages with either client_composed or seeded_summon also skip attachment expansion, so @file references are not materialised a second time.

Details
  • Applies in the stdin and remote-IO inbound message loop.
  • No flag; the behaviour follows entirely from the flags on the incoming message.
Evidence

...(r.client_composed === !0 && { skipSlashCommands: !0 }),

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 v2.1.248 →