{"name":"tengu_mossy_crown","slug":"tengu-mossy-crown","family":"flag","title":"Feature flags","noun":"feature flag","description":"A new accessFallbackModels setting lists models Claude Code may fall back to when the main model can't be used","description_source":"entry","described_by":{"version":"2.1.292","anchor":"host-model-fallback-list-accessfallbackmodels-gated-by-ten"},"presence":{"first_seen":"2.1.292","removed_in":null,"in_current_build":true,"newest_mined":"2.1.308","builds":15,"mined_builds":149,"first_cited":{"version":"2.1.299","released_at":"2026-10-14 00:23:19","spans":1}},"aliases":[],"entries":[{"version":"2.1.299","anchor":"host-model-gate-now-filtered-by-a-predicate","heading":"Model switch list is now filtered by the model you are using","line":"The list of models a session may switch to now comes from a configuration whose entries apply only to particular current models","released_at":"2026-10-14 00:23:19","reason":"gate cited by this entry"},{"version":"2.1.292","anchor":"host-model-fallback-list-accessfallbackmodels-gated-by-ten","heading":"Backup model list for when the main model is unavailable","line":"A new accessFallbackModels setting lists models Claude Code may fall back to when the main model can't be used","released_at":"2026-10-06 17:10:31","reason":"gate cited by this entry"}],"entries_total":2,"docs":[],"docs_total":0,"gates":[{"version":"2.1.299","state":"unknown","account":null,"baseline":null,"code_default":true},{"version":"2.1.292","state":"unknown","account":null,"baseline":null,"code_default":true}],"related":[{"name":"tengu_mossy_gray","slug":"tengu-mossy-gray","description":"A limit set at 2000 for every provider can now be removed by a server-side switch when Claude Code runs interactively"},{"name":"tengu_mossy_lantern","slug":"tengu-mossy-lantern","description":"Tools added or removed mid-conversation can be surfaced to the model, but the beta capability is gated off by default."},{"name":"tengu_mossy_thrush","slug":"tengu-mossy-thrush","description":"When a further server-side switch is on, the changed-file check can judge files through an outputs link and count each outcome"},{"name":"tengu_mossy_wirth","slug":"tengu-mossy-wirth","description":"Reading project files can return an uploaded PDF or Word file itself, and writes can check a version first; both are off unless switched on remotely"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-mossy-crown","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}