Product Brain — Cowork OS
Layer 1 — Signals
Per-component evidence dossiers. Customer quotes, ARR, tickets, open questions.
research/signals/
↓ evidence feeds
Layer 2 — Synthesis
Themed research docs. Problem statements, tier recs, briefs. 5-15 pages each.
research/
↓ analysis informs
Layer 3 — Strategy
Decisions with rationale. What we're doing, why, and what would change it.
ROADMAP_MAP + DECISION_LOGs
💾 Persistent Memory
CLAUDE.md (orientation per folder) + MEMORY.md (context across sessions). Informs every layer, every session.
Access
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Cowork Sessions
Active work. Drafting, research, filing, /brief, decisions. Reads and writes.
🔮
Obsidian Vault
Browse, search, graph view. Points at same folder. Zero duplication.