tengu_violin_luthier
A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.290, including the newest one read.
A new --allow-unattended-tool-calls option lets cloud sessions use the current folder for one run, with auto-mode commands running without asking
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.290.
In the changelogs
2Releases whose published page names tengu_violin_luthier.
-
v2.1.290
claude remote-controlcan let cloud sessions run commands in a folder unattendedA new
--allow-unattended-tool-callsoption lets cloud sessions use the current folder for one run, with auto-mode commands running without askinggate cited by this entry
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v2.1.290
Status messages for cloud sessions that run commands on your computer
Claude Code adds messages saying whether cloud sessions can run commands on this computer, why a folder is unavailable, and when they connect or stop
gate cited by this entry
Gate readings
1| Release | Resolved | This account | Anonymous | Compiled default |
|---|---|---|---|---|
| v2.1.290 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
2| Read as | Reading | From | Until | Version installed |
|---|---|---|---|---|
| anonymous | off | 2026-10-02T20:25:05Z | 2026-10-08T23:45:05Z | v2.1.288 to v2.1.295 |
| this account | off | 2026-10-02T20:25:05Z | 2026-10-08T23:45:05Z | v2.1.288 to v2.1.295 |
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
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
1Build by build
6One 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.