Every feature flag, and where it lived
11 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_packet ◇ Claude Code can reuse a precomputed conversation summary instead of compacting fresh, gated offv2.1.198 → v2.1.308 ◆in the build AND v2.1.265
tengu_cheeky_toucan ◇ A switched-off change lets Claude Code recover kept messages from an earlier compaction marker when the usual one is missingnever mined ·never mined AND v2.1.301
tengu_cobalt_plinth_damson ◇ The artifact tool's flat verbs are mapped to a canonical action shape, with a gate deciding which toolset is active.v2.1.257 → v2.1.308 ◆in the build AND v2.1.265
tengu_gleaming_fair ◇ Resuming a session can now reuse an already-computed summary instead of recalculating itv2.1.138 or earlier → v2.1.308 ◆in the build AND v2.1.265
tengu_gleaming_fair_reuse ◇ Resuming a session can now reuse an already-computed summary instead of recalculating itv2.1.265 → v2.1.308 ◆in the build AND v2.1.265
tengu_madrone_spindle_newel ◇ Claude now previews whether it would be allowed to auto-reply to a new artifact comment while it's still busyv2.1.265 → v2.1.308 ◆in the build AND v2.1.265
tengu_mellow_heron ◇ Claude Code can now track prompts that were merged or queued together, for rewinding and spotting unanswered turns, when a switch is onv2.1.299 → v2.1.308 ◆in the build AND v2.1.299
tengu_mellow_hollerith ◇ New built-in 'Claude Test' plugin runs plain-language specs against your local dev server in a real browser and reports PASS/FAILv2.1.274 → v2.1.295 ○gone AND v2.1.300
tengu_reflective_wolf ◇ A new gated mechanism lets Claude Code tell the model when an 'advisor tool' becomes available or unavailablev2.1.268 → v2.1.308 ◆in the build AND v2.1.265
tengu_steadfast_wren ◇ Claude Code adds several new remotely controlled switches whose purpose is not yet visiblenever mined ·never mined AND v2.1.299
tengu_witty_kay ◇ Two new feature switch names were added to an existing list of switch namesv2.1.307 → v2.1.308 ◆in the build AND v2.1.307
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