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 v2.1.236 Home All releases olderv2.1.235 v2.1.237newer
Claude Code v2.1.236

Artifact watches can answer comments posted just before the watch started

Not switched on
Useful2 Signal3
Artifacts

A comment sent moments before a watch starts could get a reply, but the flag is off.

A recency window for pre-watch comments sits behind tengu_sorrel_trellis_lintel, which falls back to off.

Feature flag
tengu_sorrel_trellis On for this account, and not off by default

The flag server returned on for the one account this site reads, and nothing in this release compiles it off by default. The compiled default is shown below, and says which it is when we cannot read one: a fifth of gates compile in a string or a number rather than on or off, and most published releases have no gate table behind them at all. No client can see what the server returns for your account.

This account: on · anonymous baseline: on · compiled default in v2.1.236: on

Read once, for one account on one subscription tier, against v2.1.236. It isn't a statement about your account. What a flag value here can and cannot tell you

What

When Claude starts watching an artifact for comments, comments addressed to it within a short recency window are no longer treated as already-seen history, so a summons sent moments before the watch existed gets a reply instead of being silently ignored. It is decided by tengu_sorrel_trellis_lintel, which falls back to off, so with no server value the old behaviour of baselining everything stands.

Details
  • Only applies on an explicit publish-time arm of the watch, not on every start.
  • Also forces a refresh of the fast-acknowledgement flag that would otherwise be skipped.
  • The surrounding comment-autoreply feature is itself behind tengu_sorrel_trellis and CLAUDE_CODE_ARTIFACT_COMMENTS_AUTOREACT.
  • Neither the gate nor this code path exists in 2.1.235.
Evidence

tengu_sorrel_trellis_lintel

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

See this entry in the whole of v2.1.236 →