{"name":"tengu_penguins_off","slug":"tengu-penguins-off","family":"flag","title":"Feature flags","noun":"feature flag","description":"Fast mode ('penguin mode') gains an admin setting to require per-session opt-in or disable it, plus an org-check bypass env var","description_source":"entry","described_by":{"version":"2.1.271","anchor":"fast-mode-penguin-mode-gains-a-per-session-opt-in-path-a"},"presence":{"first_seen":"2.1.138","removed_in":null,"in_current_build":true,"newest_mined":"2.1.308","builds":149,"mined_builds":149,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.299","anchor":"fast-mode-status-accepts-api-keys-only-if-they-look-like-ant","heading":"Fast mode checks now use only API keys that look like Anthropic keys","line":"Fast mode and profile lookups now use an API key only when no OAuth login is available and the key starts with `sk-ant-`","released_at":"2026-10-14 00:23:19","reason":"gate cited by this entry"},{"version":"2.1.274","anchor":"fastpenguin-mode-org-status-logic-reworked-for-sdk-contex","heading":"Fast\/'penguin' mode org-status logic reworked for SDK contexts","line":"Fast mode's org-status checking logic was reworked to handle SDK-based sessions separately","released_at":"2026-09-16 22:36:09","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.271","anchor":"fast-mode-penguin-mode-gains-a-per-session-opt-in-path-a","heading":"Fast mode (\"penguin mode\") gains a per-session opt-in path and new 'preference' disable reason","line":"Fast mode ('penguin mode') gains an admin setting to require per-session opt-in or disable it, plus an org-check bypass env var","released_at":"2026-09-14 19:45:19","reason":"gate cited by this entry"}],"entries_total":3,"docs":[],"docs_total":0,"gates":[{"version":"2.1.299","state":"unknown","account":null,"baseline":null,"code_default":null},{"version":"2.1.274","state":"unknown","account":null,"baseline":null,"code_default":null},{"version":"2.1.271","state":"unknown","account":null,"baseline":null,"code_default":null}],"related":[{"name":"tengu_penguins_enabled","slug":"tengu-penguins-enabled","description":null}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-penguins-off","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}