{"name":"tengu_sable_thrush","slug":"tengu-sable-thrush","family":"flag","title":"Feature flags","noun":"feature flag","description":"Claude Code now spots server-tagged narration thinking, but the display change stays off by default.","description_source":"entry","described_by":{"version":"2.1.240","anchor":"server-tagged-narration-thinking-blocks-counted-now-and-rend"},"presence":{"first_seen":"2.1.240","removed_in":"2.1.251","in_current_build":false,"newest_mined":"2.1.308","builds":9,"mined_builds":149,"first_cited":{"version":"2.1.241","released_at":"2026-08-22 23:58:33","spans":3}},"aliases":[],"entries":[{"version":"2.1.251","anchor":"startup-telemetry-reports-remote-control-availability-drops-","heading":"Startup telemetry reports Remote Control availability, drops an old experiment","line":"Startup telemetry now reports Remote Control availability and an old experiment field was dropped.","released_at":"2026-08-28 15:34:26","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.248","anchor":"vscode-gate-snapshot-loads-one-gate-lazily","heading":"VSCode gate snapshot loads one gate lazily","line":"The VSCode extension's gate summary resolves one check later; reported gates are unchanged.","released_at":"2026-08-27 20:35:36","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.241","anchor":"narration-gate-state-now-reported-to-the-vs-code-extension","heading":"Narration gate state now reported to the VS Code extension","line":"A narration-summary feature can be forced on with an env var, but it's off by default here.","released_at":"2026-08-22 23:58:33","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.240","anchor":"server-tagged-narration-thinking-blocks-counted-now-and-rend","heading":"Server-tagged \"narration\" thinking blocks, counted now and rendered as \"(summarized)\" later","line":"Claude Code now spots server-tagged narration thinking, but the display change stays off by default.","released_at":"2026-08-22 13:03:23","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.240","anchor":"thinking-display-modes-gated-behind-a-server-side-model-capa","heading":"Thinking display modes gated behind a server-side model capability","line":"Claude Code can present thinking as connector text only, but nothing enables it here.","released_at":"2026-08-22 13:03:23","reason":"gate cited by this entry, found in this entry's text"}],"entries_total":5,"docs":[],"docs_total":0,"gates":[{"version":"2.1.251","state":"on-in-code","account":true,"baseline":true,"code_default":null},{"version":"2.1.248","state":"on-in-practice","account":true,"baseline":true,"code_default":false},{"version":"2.1.241","state":"on-in-practice","account":true,"baseline":true,"code_default":false},{"version":"2.1.240","state":"on-in-practice","account":true,"baseline":true,"code_default":false}],"related":[{"name":"tengu_sable_orrery","slug":"tengu-sable-orrery","description":"Behind a server-controlled switch, the auto mode startup dialog now changes some state before it shows and restores it after"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-sable-thrush","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}