{"version":"2.1.248","anchor":"compaction-and-rewind-notify-a-shared-subsystem","canonical_anchor":"compaction-and-rewind-notify-a-shared-subsystem","heading":"Compaction and rewind notify a shared subsystem","tier":"internal","area":"Compaction","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.248\/e\/compaction-and-rewind-notify-a-shared-subsystem","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.248","markdown":"### Compaction and rewind notify a shared subsystem\n\nCompaction cleanup and rewind both notify a shared hook with a reason string.\n\n**What**\n\nCleaning up after a conversation compaction and rewinding a conversation both call the same new hook with a reason string, and rewind sends a second call with `\"rewind\"`. Existing rewind telemetry is unchanged. What consumes the hook is not visible here.\n\n**Evidence**\n\n`tengu_conversation_rewind`\n\n- Area: Compaction\n- Tier: Under the hood\n- Useful: 1\/5\n- Signal: 3\/5\n- Present in the build but not switched on"}