{"name":"tengu_umber_kestrel","slug":"tengu-umber-kestrel","family":"flag","title":"Feature flags","noun":"feature flag","description":"Gates the `EndConversation` tool, which lets Claude end a conversation after sustained abuse and an earlier warning. Code default `false`; `true` enables it for the `cli` entrypoint, and an object `{scope: \"<regex>\"}` enables it for entrypoints that fully match the regex (case-insensitive, falling back to `cli` if the regex is invalid). It also applies only to a fixed list of model families and versions.","description_source":"code","described_by":{"bundle":"2.1.285","author":"claude-opus-5-5"},"presence":{"first_seen":"2.1.206","removed_in":null,"in_current_build":true,"newest_mined":"2.1.308","builds":85,"mined_builds":149,"first_cited":{"version":"2.1.206","released_at":"2026-07-09 17:54:03","spans":1}},"aliases":[],"entries":[{"version":"2.1.206","anchor":"endconversation-tool-feature-flagged","heading":"EndConversation Tool [Feature-Flagged]","line":null,"released_at":"2026-07-09 17:54:03","reason":"gate cited by this entry, found in this entry's text"}],"entries_total":1,"docs":[],"docs_total":0,"gates":[{"version":"2.1.206","state":"graduated","account":true,"baseline":false,"code_default":null}],"related":[{"name":"tengu_umber_lattice","slug":"tengu-umber-lattice","description":"Published artifacts can gain a document database Claude reads and writes, off unless you set the env var."},{"name":"tengu_umber_petrel","slug":"tengu-umber-petrel","description":"Default `false`. When on, auto memory is turned off for sessions whose model matches an entry in the `tengu_sepia_cormorant` model list, unless auto memory has been explicitly forced on or off."},{"name":"tengu_umber_plover","slug":"tengu-umber-plover","description":"Claude Code's safety check for Bash commands that begin by setting environment variables now depends on extra conditions, including a remote switch"},{"name":"tengu_umber_sluice","slug":"tengu-umber-sluice","description":"The rule stopping Claude publishing artifacts you didn't ask for can now be removed remotely."},{"name":"tengu_umber_stile","slug":"tengu-umber-stile","description":"A new str_replace write action for the artifact database is built but not yet exposed to users"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-umber-kestrel","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}