{"version":"2.1.219","anchor":"index-based-memory-recall-behind-tengu-mill-orange","canonical_anchor":"index-based-memory-recall-behind-tengu-mill-orange","heading":"Index-based memory recall behind tengu_mill_orange","tier":"soon","area":"Memory","scope":null,"heads_up":null,"url":"https:\/\/changelogs.core-directive.com\/v\/2.1.219\/e\/index-based-memory-recall-behind-tengu-mill-orange","release_url":"https:\/\/changelogs.core-directive.com\/v\/2.1.219","markdown":"### Index-based memory recall behind `tengu_mill_orange`\n\nMemory recall could pick documents from a search index instead of asking the model, but it is disabled.\n\n**What**\n\nMemory recall has a new branch that selects documents from a search index rather than asking the model to pick, switched off in this build.\n\n**Details**\n\n- The search entry point takes four extra arguments; when the first is true the new branch uses `searchMemoryFilesWithIndex` in place of the model-driven memory selector.\n- Emits a `memory_recall_select` event with `via_index`, `candidate_docs`, `index_query_term_count`, `index_hit_count`, `index_below_floor_count`, `index_top_score`, `index_relevance_floor`, `index_loaded_from_disk`, `index_took_ms`, `index_store_held`, `index_open_wait_ms` and `index_store_open_ms`.\n- Failure reasons: `index_sweep_incomplete`, `index_query_failed`, `below_relevance_floor`, `no_servable_hits`, `partially_below_floor`, `all_filtered`.\n- Gated on `tengu_mill_orange`, whose in-source fallback is false; with it off the old selector path runs unchanged.\n\n**Evidence**\n\n`tengu_mill_orange`\n\n- Flag `tengu_mill_orange`: Off in both readings (read for one account on one subscription tier against v2.1.219; this account: off, anonymous baseline: off, compiled default: off) These values were read against a different version of Claude Code, so treat them as the nearest reading available instead of one taken on this release.\n- Area: Memory\n- Tier: Nothing to try yet\n- Useful: 3\/5\n- Signal: 4\/5\n- Present in the build but not switched on"}