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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
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One family

Feature flags, all 2,081.

GrowthBook gates the client evaluates on startup. Most of what ships is behind one of these before it is announced.

Feature flags2,081seen across 149 builds
In v2.1.308889the newest inventory on disk
Gone314in an earlier build, not in the newest
Described0have a line in Anthropic's documentation
No docs line2,081no line in the documentation we hold

Every feature flag, and where it lived

9 of 2,081 feature flags One tick per build on this box, oldest on the left. A gap is a build the feature flag was not in.
State
This account
Anonymous
Compiled default

A is the one account this site reads, N the anonymous baseline, D what the release compiled in. 1,143 of 2,081 gates have been read at all: a run only records the gates its own release wrote about. Claude Code evaluates its gates on Anthropic's servers, so a reading of off can be a rollout this account sits outside of, and none of it says anything about your install. How to read these.

○ not in v2.1.308, ◇ we found no documentation describing it.

Feature flagWhat it doesSpan v2.1.138 → v2.1.308 Status Reading
tengu_amber_heron ◇ Default false. When true, an Agent tool call that does not set run_in_background launches the subagent as a background task. An explicit run_in_background: false, an in-process teammate caller, or CLAUDE_CODE_DISABLE_BACKGROUND_TASKS keeps it synchronous.v2.1.186 → v2.1.197 ○gone AND v2.1.286 tengu_cobalt_plinth_laurel ◇ Default false. When on, the Artifact tool's input schema gains an optional lang parameter, a BCP-47 language tag (such as ja or pt-BR) that becomes the published page's <html lang>.v2.1.212 → v2.1.270 ○gone AND v2.1.269 tengu_cobalt_plinth_osier ◇ Default false. When on, listing artifacts or the instances of an Artifact type with any scope other than mine is refused with shared-scope listing is disabled (reason scope_disabled).v2.1.210 → v2.1.267 ○gone AND v2.1.269 tengu_coral_beacon ◇ Default false. When on, the rate-limit options menu adds an option Upgrade to Team plan (labelled Switch to Team plan on Max 20x) for users not on a Team or Enterprise plan, if the upgrade action is enabled. It also lets the rate-limit upsell menu be offered to such users when the upgrade command is available (not disabled by DISABLE_UPGRADE_COMMAND and not an Enterprise plan), in cases where the plan's upgrade paths would otherwise not qualify.v2.1.138 or earlier → v2.1.258 ○gone AND v2.1.251 tengu_harbor_prism ◇ Default false. When on, the PR status for the current branch is fetched straight from the GitHub REST API (/repos/<owner>/<repo>/pulls?head=...) with a GitHub token, using ETags, redirect handling and backoff on 403/429; when off it runs gh pr view --json number,url,reviewDecision,isDraft,headRefName,state. Either way a null result falls through to a further lookup. The flag also switches the PR-status poller from its fixed 60000 ms interval to an interval computed from terminal focus, time since the last interaction, the failed-fetch streak and the not-modified streak.v2.1.138 or earlier → v2.1.250 ○gone AND v2.1.286 tengu_orchid_mantis ◇ Default false. When on and tengu_orchid_mantis_v2 is off, the system prompt's session guidance tells the model it may end a reply with a one-line offer to /schedule a background agent for a natural future follow-up, with signals for one-time and recurring offers; this needs the Skill tool and a schedule skill to be available. Separately, it switches the /schedule skill's when-to-use text to one that also covers one-time runs such as "open a cleanup PR for X in 2 weeks".v2.1.138 or earlier → v2.1.205 ○gone AND v2.1.272 tengu_orchid_mantis_v2 ◇ Default false. When on, and the Skill tool and a schedule skill are available, the system prompt's session guidance carries a stricter /schedule rule: no offer by default, and an offer only when the turn left a named artifact with a quotable future obligation (a flag with a ramp date, a .skip with a removal condition, a job ID with an ETA, a dated TODO), at most once per session. In that guidance it takes precedence over tengu_orchid_mantis.v2.1.138 or earlier → v2.1.205 ○gone AND v2.1.272 tengu_purring_yeti ◇ A list Claude Code fetches from its remote configuration is now read under a different name, so values set under the old name no longer applynever mined ·never mined AND v2.1.290 tengu_startup_notice ◇ Default "". A non-empty string is shown as a high-priority, warning-colored notification for 30 seconds. The value is re-read when flag values update: a new string replaces the notification and an empty one removes it.v2.1.140 → v2.1.308 ◆in the build AND v2.1.289
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