tengu_violin_bridgepin
A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.277, including the newest one read.
New display styles for background tool results and for repository-trust folder-wait refusals
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.277.
In the changelogs
6Releases whose published page names tengu_violin_bridgepin.
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v2.1.277
New "refusal" message rendering for repository-trust folder waits, plus a rows-based renderer for detached/backgrounded tool results
New display styles for background tool results and for repository-trust folder-wait refusals
gate cited by this entry
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v2.1.277
New tengu_violin_bridgepin gate, off by default
New tengu_violin_bridgepin gate controls an unspecified bridging behavior
gate cited by this entry, found in this entry's text, named in this entry
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v2.1.277
Repository-trust answer naming flag, off by default
New nameRepositoryTrustAnswers capability flag added, currently off
gate cited by this entry, found in this entry's text, named in this entry
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v2.1.277
Remote-attach announcement of served tools now feeds repository-trust and dir-sync state
Remote-attach flow now feeds served-tools info into repository-trust and directory-sync state
gate cited by this entry
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v2.1.277
Repository-trust question gated behind tengu_violin_bridgepin
Headless cloud client now restricts a repository-trust permission request to a single-hash format before forwarding it
gate cited by this entry, found in this entry's text, named in this entry
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v2.1.277
New "repository trust" confirmation flow for cloud/remote sessions
Cloud sessions can now ask you to confirm you trust a repository, with device-binding warnings if you're answering from the wrong place
gate cited by this entry
Gate readings
1| Release | Resolved | This account | Anonymous | Compiled default |
|---|---|---|---|---|
| v2.1.277 read on another version | Off in both readings | off | off | off |
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.
Flag server, over time
7| Read as | Reading | From | Until | Version installed |
|---|---|---|---|---|
| anonymous | on | 2026-10-17T05:30:04Z | 2026-11-06T12:30:05Z | v2.1.302 to v2.1.318 |
| this account | on | 2026-09-22T17:25:08Z | 2026-11-06T12:30:05Z | v2.1.280 to v2.1.318 |
| anonymous | no longer carried | 2026-10-17T05:25:57Z | 2026-10-17T05:25:57Z | v2.1.302 |
| anonymous | on | 2026-10-02T16:50:05Z | 2026-10-17T05:10:04Z | v2.1.287 to v2.1.302 |
| anonymous | on | 2026-09-22T17:20:06Z | 2026-10-02T16:30:05Z | v2.1.280 to v2.1.287 |
| this account | off | 2026-09-18T14:00:05Z | 2026-09-22T17:20:06Z | v2.1.276 to v2.1.280 |
| anonymous | off | 2026-09-18T13:50:04Z | 2026-09-22T17:15:06Z | v2.1.276 to v2.1.280 |
One row per unbroken stretch of one reading, newest first, from snapshots taken every twenty-five minutes or so. No longer carried is not off: it means the flag server stopped returning the gate at all, which is what a retired experiment looks like. The version column is what was installed when the reading was taken, not what caused it.
First cited
1The earliest release whose published evidence quoted tengu_violin_bridgepin was v2.1.277, 18 Sep 2026. That is the oldest release this project wrote about it, so it is a floor on the name's age and not the release that introduced it. It is not a presence reading: which builds carried the name is the table below.
Presence across releases
1Build by build
39One 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.