{"name":"tengu_quartz_falcon","slug":"tengu-quartz-falcon","family":"flag","title":"Feature flags","noun":"feature flag","description":null,"description_source":"none","described_by":null,"presence":{"first_seen":null,"removed_in":null,"in_current_build":false,"newest_mined":"2.1.308","builds":0,"mined_builds":149,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.71","anchor":"notes","heading":"","line":null,"released_at":"2026-03-06 22:47:03","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.68","anchor":"removed-silent-medium-effort-auto-migration","heading":"Removed silent medium-effort auto-migration","line":null,"released_at":"2026-03-04 09:20:53","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.68","anchor":"server-controlled-effort-dialog-gradual-rollout","heading":"Server-controlled effort dialog [Gradual Rollout]","line":null,"released_at":"2026-03-04 09:20:53","reason":"gate cited by this entry, found in this entry's text"}],"entries_total":3,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"tengu_quartz_heron","slug":"tengu-quartz-heron","description":"Default `false`. Picks the model for the built-in `Explore` agent: when false it uses `haiku`; when true it uses `inherit` (the parent's model), except on the first-party API when the parent model name contains none of `haiku`, `sonnet` or `opus`, where it uses `opus`."},{"name":"tengu_quartz_pipit","slug":"tengu-quartz-pipit","description":"Default `true`. When a main-thread turn under an active `\/goal` ends in a way Claude Code classifies as unrecoverable (a context limit such as `prompt_too_long` or `blocking_limit`), the goal is cleared, its Stop hook removed, and the warning `Goal cleared after an unrecoverable error (...)` is shown. When `false`, that case returns without clearing the goal."},{"name":"tengu_quartz_thimble","slug":"tengu-quartz-thimble","description":"Plugin eval now writes report.html and publishes it to claude.ai unless you pass --no-publish."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-quartz-falcon","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}