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https://github.com/turnstonelabs/turnstone.git
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Patrick Buckley
723cad24bb
* feat: structured memory system — typed/scoped memories with BM25 relevance and metacognitive prompting Replace flat key-value memories table with structured_memories (migration 014). Four memory types (user/project/feedback/reference), three scopes (global/workstream/user). Consolidate remember/recall/forget into two tools: memory (action-based: save/search/delete/list) and recall (conversation history only). BM25 relevance scoring (extracted to turnstone/core/bm25.py) selects top-5 memories for system message injection based on conversation context. Metacognitive prompting injects ephemeral nudges after corrections, tool denials, workstream resume, and completion signals. Scope isolation enforced: system message injection and nudge counts filtered to visible memories only (global + current workstream + authenticated user). User scope requires authentication. Content capped at 32KB. ILIKE/LIKE metacharacters escaped in both backends. 113 new tests (2053 total). * fix: CI failure + copilot review feedback - Fix time.monotonic() cooldown: use None sentinel instead of 0.0 default (monotonic clock starts at boot, not epoch — fresh CI runners have uptime < 300s so cooldown check always triggered) - Catch sa.exc.IntegrityError specifically in upsert instead of broad Exception (copilot review) - Preserve existing description/type on upsert when caller doesn't explicitly set them (copilot review) - Add last_accessed + access_count columns to schema/migration for future LRU/LFU eviction support
