tengu_functional_llama
A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.284, including the newest one read.
Overrides the messages shown when Claude Code will continue automatically after hitting a usage limit. Code default null keeps the built-in text, such as Usage limit reached · continuing automatically {when} · esc to cancel. The value is an object with optional string fields waiting, started, rearmed and credits; an override for the first three is used only if it contains {when}, which is filled with at <time>, or with shortly (started, rearmed) or when it resets (waiting) when no time is known. Every message is capped at 120 characters.
Not Anthropic's. Written by Claude Opus 5.5 from reading the v2.1.285 bundle, and it can be wrong.
In the changelogs
0No changelog entry here has ever named it. That is a statement about what has been written, not about the name: it has been in the build since v2.1.284 without anybody writing a line about it.
Gate readings
0No release here has a gate table behind it for this flag. Most published releases have none at all: the readings exist only for versions the pipeline captured flag state on.
First cited
1The earliest release whose published evidence quoted tengu_functional_llama was v2.1.284, 28 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
5Build by build
36One 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.