{"name":"tengu_observer_agents_enabled","slug":"tengu-observer-agents-enabled","family":"flag","title":"Feature flags","noun":"feature flag","description":"Default `true`. Kill switch for observer agents, the `observer` field in an agent definition: they also require `CLAUDE_CODE_EXPERIMENTAL_OBSERVER_AGENTS`, and a `false` value here leaves every agent unobserved. The same gate also switches a second code path elsewhere in the bundle.","description_source":"code","described_by":{"bundle":"2.1.286","author":"claude-opus-5-5"},"presence":{"first_seen":"2.1.200","removed_in":null,"in_current_build":true,"newest_mined":"2.1.308","builds":97,"mined_builds":149,"first_cited":null},"aliases":[],"entries":[{"version":"2.1.200","anchor":"observer-agents-gradual-rollout","heading":"Observer Agents [Gradual Rollout]","line":null,"released_at":"2026-07-03 04:33:49","reason":"gate cited by this entry, found in this entry's text"}],"entries_total":1,"docs":[],"docs_total":0,"gates":[{"version":"2.1.200","state":"unknown","account":null,"baseline":null,"code_default":true}],"related":[{"name":"tengu_observer_subagent_fanout","slug":"tengu-observer-subagent-fanout","description":"Default `true`. When `false`, an observer pairing is not extended to the subagents an observed agent spawns. When on, fan-out still requires observer agents to be enabled, stops at depth `2`, and is skipped for agents with `observeSubagents: false`."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-observer-agents-enabled","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}