{"name":"tengu_rustling_crescent","slug":"tengu-rustling-crescent","family":"flag","title":"Feature flags","noun":"feature flag","description":"Claude Code can list the subagents that ran earlier in a session, off unless CLAUDE_CODE_SUBAGENT_HISTORY is set or it is switched on remotely","description_source":"entry","described_by":{"version":"2.1.307","anchor":"subagent-history-browser-is-built-gated-off-by-default"},"presence":{"first_seen":"2.1.307","removed_in":null,"in_current_build":true,"newest_mined":"2.1.308","builds":2,"mined_builds":149,"first_cited":{"version":"2.1.307","released_at":"2026-10-21 20:47:18","spans":1}},"aliases":[],"entries":[{"version":"2.1.307","anchor":"subagent-history-browser-is-built-gated-off-by-default","heading":"A list of earlier subagents in a session, off unless switched on","line":"Claude Code can list the subagents that ran earlier in a session, off unless CLAUDE_CODE_SUBAGENT_HISTORY is set or it is switched on remotely","released_at":"2026-10-21 20:47:18","reason":"gate cited by this entry"}],"entries_total":1,"docs":[],"docs_total":0,"gates":[{"version":"2.1.307","state":"unknown","account":null,"baseline":null,"code_default":false}],"related":[{"name":"tengu_rustling_orbit","slug":"tengu-rustling-orbit","description":"A missing policy-limits response with no cache no longer counts as a failure; the session runs with no restrictions instead."},{"name":"tengu_rustling_pixel","slug":"tengu-rustling-pixel","description":"Claude Code can now keep extended-thinking content across any model switch, not just upgrades"},{"name":"tengu_rustling_sunset","slug":"tengu-rustling-sunset","description":"Claude Code can now show a heartbeat message while waiting on a rate-limit retry"}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-rustling-crescent","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}