{"name":"tengu_reactive_compact_succeeded","slug":"tengu-reactive-compact-succeeded","family":"flag","title":"Feature flags","noun":"feature flag","description":"Compaction telemetry now records the split kind and head truncations, and flags when the whole conversation was summarized.","description_source":"entry","described_by":{"version":"2.1.259","anchor":"reactive-compaction-telemetry-distinguishes-full-summary-spl"},"presence":{"first_seen":null,"removed_in":null,"in_current_build":false,"newest_mined":"2.1.322","builds":0,"mined_builds":161,"first_cited":{"version":"2.1.267","released_at":"2026-09-09 18:25:42","spans":1}},"aliases":[],"entries":[{"version":"2.1.290","anchor":"reactive-compact-telemetry-adds-summary-prompt-arm-and-scope","heading":"Compaction usage reports now record which summary prompt was used","line":"Usage reports about automatic conversation compaction now record the summary prompt variant and whether a scope warning was given","released_at":"2026-10-05 18:12:44","reason":"found in this entry's text"},{"version":"2.1.267","anchor":"reactive-compaction-telemetry-now-reports-cache-cold-state","heading":"Reactive compaction telemetry now reports cache-cold state","line":"Reactive compaction telemetry now records whether the cache was cold","released_at":"2026-09-09 18:25:42","reason":"gate cited by this entry, found in this entry's text"},{"version":"2.1.259","anchor":"reactive-compaction-telemetry-distinguishes-full-summary-spl","heading":"Reactive compaction telemetry distinguishes full-summary splits","line":"Compaction telemetry now records the split kind and head truncations, and flags when the whole conversation was summarized.","released_at":"2026-09-02 21:21:42","reason":"gate cited by this entry, found in this entry's text"}],"entries_total":3,"docs":[],"docs_total":0,"gates":[],"related":[{"name":"tengu_reactive_compact_attempt","slug":"tengu-reactive-compact-attempt","description":"Automatic conversation compaction now flags when foreign or teammate content is being summarized"},{"name":"tengu_reactive_compact_failed","slug":"tengu-reactive-compact-failed","description":"Failed reactive compaction now reports a specific reason code, not just free text"},{"name":"tengu_reactive_compact_remote","slug":"tengu-reactive-compact-remote","description":"Default `false`. Read only when `CLAUDE_CODE_REMOTE` is set, and latched for the rest of the process on first read. In remote sessions with the flag off, reactive compaction after a context-limit error and precomputed compaction are disabled, and proactive auto-compaction is no longer held back for reactive handling or routed through it. Outside remote sessions the flag is not consulted and these paths behave as if it were on."}],"url":"https:\/\/changelogs.core-directive.com\/reference\/flag\/tengu-reactive-compact-succeeded","family_url":"https:\/\/changelogs.core-directive.com\/reference\/flag.json"}