A cheaper canned way to acknowledge artifact comments exists but needs two env vars switched on.
Fixed-menu fast acknowledgment for artifact comments sits behind CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK_FIXED nested inside CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK, both false by default.
tengu_gorse_sill Not enough to sayNothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.
This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.235: on
tengu_gorse_pylon Not enough to sayNothing here resolved what this flag was doing on this version, so nothing here should be read as on or off.
This account: no value returned · anonymous baseline: no value returned · compiled default in v2.1.235: on
Read once, for one account on one subscription tier, against v2.1.235. It isn't a statement about your account. What a flag value here can and cannot tell you
What's wrong with this entry?
A second way to produce the quick "on it" reply to an artifact comment: instead of writing one freely, the model picks a numbered line from a fixed list and is told to output only its number — a single digit, nothing else, capped at 5 output tokens with a deadline. It runs only when CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK_FIXED (or tengu_gorse_sill) is on, itself inside CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK (or tengu_gorse_pylon). Both fall back to false, so two opt-ins are needed.
- Failure telemetry is separate from the free-form path:
fast_ack_select_error,fast_ack_select_unparsed,fast_ack_select_timeout,fast_ack_select_threw - Ships with a permission shortcut,
artifact_comment_fixed_ack_on_probe_verdict, that reuses a verdict from an earlier permission probe instead of asking again - Nothing in this build turns either gate on, so whether it runs is decided by server-side config or by setting the environment variables yourself
export CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK=1
export CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK_FIXED=1CLAUDE_CODE_ARTIFACT_COMMENT_FAST_ACK_FIXED
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.
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v2.1.232
Quick acknowledgement before the full artifact comment reply
Both mention comment fast
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v2.1.237
First-sight summon pickup for artifact comments, off by default
Both mention comment fast