tengu_lively_waffle

A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.267, including the newest one read.

Releases whose published page names tengu_lively_waffle.

1. v2.1.317 2 Nov 2026
   CLAUDE_CODE_DEEP_TWILIGHT controls how mid-turn prompts from a host are sorted

   A new CLAUDE_CODE_DEEP_TWILIGHT variable helps decide whether a prompt a host program sends mid-turn is treated as its own kind of input

   gate cited by this entry

2. v2.1.271 14 Sep 2026
   Forked skill tool executions register as real background tasks

   Forked skill executions now register as real, trackable background tasks

   gate cited by this entry

3. v2.1.271 14 Sep 2026
   SubagentHandback default flipped on (tengu_lively_waffle)

   Auto-mode subagents reporting back via SubagentHandback moves from an off-by-default flag to on-by-default in code

   gate cited by this entry, found in this entry's text

4. v2.1.267 9 Sep 2026
   SubagentHandback protocol for auto-mode subagents, gated off by default

   Subagents running in 'auto' mode may need to report back via a new SubagentHandback tool instead of plain text, gated by an unread flag

   gate cited by this entry

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.

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.

The earliest release whose published evidence quoted tengu_lively_waffle was v2.1.271, 14 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.

One 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.