tengu_structured_creek
A Claude Code feature flag, read out of the shipped bundle. It was in the build from v2.1.281 and was gone by v2.1.285.
In auto mode, tool calls that Claude Code generates itself now skip the classifier and are allowed
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.281.
In the changelogs
2Releases whose published page names tengu_structured_creek.
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v2.1.285
Auto mode always lets Claude Code's own tool calls skip the safety check
In auto mode, tool calls that Claude Code generates itself now always skip the classifier, with no remote switch to turn this off
gate cited by this entry
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v2.1.281
Auto mode: new 'harnessSynthesized' fast path skips the classifier
In auto mode, tool calls that Claude Code generates itself now skip the classifier and are allowed
gate cited by this entry
Gate readings
2| Release | Resolved | This account | Anonymous | Compiled default |
|---|---|---|---|---|
| v2.1.285 read on another version | Not enough to say | no value returned | no value returned | not a boolean we can read |
| v2.1.281 read on another version | Not enough to say | no value returned | no value returned | on |
Two arms, because they disagree: this account is the one account this site reads and anonymous is a baseline with no identity attached. A reading says nothing about your account, and off cannot rule out a rollout both readings sit outside of. What these readings can and cannot show.
First cited
0No release's published evidence quotes this name. The ledger indexes the Evidence lines of every changelog on this site, so this says nobody here has ever quoted it; it says nothing about how old the name is.
Presence across releases
2Build by build
26One row per release since the first build this name was read out of. Absent means the build was read and the name was not in it, never mined means no bundle for that release was ever archived, and a declared type or a default is only ever what that release's own bundle stated.
Read out of the published npm bundle release by release, and out of Anthropic's own documentation as this site captured it. Nothing on this page is a description anybody here wrote about what the feature flag does. All feature flags.