tengu_eventual_aho

A Claude Code feature flag, read out of the shipped bundle. It has been in the build since v2.1.318, including the newest one read.

Releases whose published page names tengu_eventual_aho.

1. v2.1.319 6 Nov 2026
   One remote switch has been split into two

   Behaviour that followed one remote switch is now split: part of it moves to a new switch, and both stay off by default

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

2. v2.1.318 3 Nov 2026
   A remote switch can now change the instructions for the web page reading tool

   A new remotely controlled switch feeds into how WebFetch's instructions are built and is recorded in its usage data; it defaults off

   gate cited by this entry

Release	Resolved	This account	Anonymous	Compiled default
v2.1.319 read on another version	Off in both readings	off	off	off
v2.1.318 read on another version	Not enough to say	no value returned	no value returned	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.

Read as	Reading	From	Until	Version installed
this account	off	2026-11-04T18:45:05Z	2026-11-06T11:00:09Z	v2.1.318
anonymous	off	2026-11-04T18:40:05Z	2026-11-06T11:00:09Z	v2.1.318

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_eventual_aho was v2.1.318, 3 Nov 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.