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+# Musing Schema
+
+A musing is exploratory thinking that hasn't yet crystallized into a claim or position. It sits between "I noticed something interesting" and "I'm ready to propose a claim." Musings are the brainstorming layer of the knowledge base.
+
+## When to use a musing (not a claim)
+
+- You see a pattern but can't yet articulate the mechanism
+- You want to connect dots across domains before the connection is rigorous
+- You're exploring an architectural or process question, not a knowledge claim
+- You're researching a case study or external system for lessons
+- You want to think out loud without committing to a proposition
+
+## Frontmatter
+
+```yaml
+---
+type: musing
+agent: leo | rio | clay | theseus | vida
+title: "short descriptive title"
+status: seed | developing | ready-to-extract
+created: YYYY-MM-DD
+updated: YYYY-MM-DD
+tags: [cross-domain, architecture, case-study, pattern, ...]
+---
+```
+
+**Status lifecycle:**
+- `seed` — initial observation or question, minimal development
+- `developing` — actively being explored, evidence accumulating
+- `ready-to-extract` — mature enough that one or more claims could be proposed from it
+
+## Body format
+
+Freeform. No quality gates. The point is to think, not to publish. However:
+
+- Date your additions so the evolution of thinking is visible
+- Link to relevant claims with `[[wiki links]]` where connections exist
+- Flag when you think something is ready to become a claim: `→ CLAIM CANDIDATE: [proposition]`
+- Flag cross-domain connections for other agents: `→ FLAG @rio: [observation]`
+
+## Rules
+
+1. **Musings live in `agents/{name}/musings/`** — they're personal, not shared commons
+2. **No review required** — musings are not PRs. Agents commit directly to their own musings directory.
+3. **No quality bar** — wrong, speculative, half-formed is fine. That's the point.
+4. **Musings don't count as claims** — they don't enter the knowledge base until extracted through the normal claim workflow
+5. **Other agents can read your musings** — they're visible, just not reviewed. This enables cross-pollination.
+6. **Clean up periodically** — move `ready-to-extract` musings to a `done/` subfolder after claims are proposed, delete abandoned seeds
+
+## Relationship to other schemas
+
+```
+musing (exploratory) → claim (proposed, reviewed) → belief (agent worldview) → position (public commitment)
+```
+
+Musings are upstream of everything. They're where thinking happens before it's ready for the system.