ae69b38b81
Multi-model architecture review (Qwythos-9B + Qwen3.5-9B, 2 rounds): - System architecture with memory budget (150MB pipeline + 2GB system) - SQLite + FTS5 data layer with Phase 2 sqlite-vec upgrade path - Keyword co-occurrence convergence (P1) → embeddings (P2) - Exponential decay falsification replacing 7-day fixed rule - Progressive output layer: file drops → Flask API → MCP server - 6-phase implementation plan (P0-P6) with deliverables - 30+ PRD backport requirements organized by category - Design decisions rationale table