tengu_melodic_octopus
A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.300, including the newest one read.
When --worktree uses a pull or merge request number, Claude Code fetches the full PR reference and refuses if it can't tell which commit is meant
Not Anthropic's. This is the line from the earliest changelog entry here that named it, v2.1.300.
In the changelogs
2Releases whose published page names tengu_melodic_octopus.
-
v2.1.302
Worktree creation now says whether the worktree already existed
When Claude Code sets up a worktree, the result now records whether that worktree was made elsewhere rather than by this run
gate cited by this entry
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v2.1.300
Worktrees made from a PR number now check they got the right PR
When
--worktreeuses a pull or merge request number, Claude Code fetches the full PR reference and refuses if it can't tell which commit is meantgate cited by this entry
Gate readings
2| Release | Resolved | This account | Anonymous | Compiled default |
|---|---|---|---|---|
| v2.1.302 read on another version | Not enough to say | no value returned | no value returned | on |
| v2.1.300 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
1The earliest release whose published evidence quoted tengu_melodic_octopus was v2.1.300, 14 Oct 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
9One 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.