Add CLAUDE.md guidance and repository map

- Create claude-md-writing skill with best practices for CLAUDE.md files
- Create repos.md registry of all repos with status (Active/Planned/Splitting)
- Update /create-repo to include organization context section
- Update repo-conventions to reference new skill

Each repo's CLAUDE.md now links to manifesto, repos.md, and vision.md
so Claude always understands the bigger picture.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

repos.md

@@ -0,0 +1,71 @@
+# Repository Map
+
+Central registry of all Flowmade repositories.
+
+## How to Use This
+
+Each repo's CLAUDE.md should reference this map for organization context. When working in any repo, Claude can check here to understand how it fits in the bigger picture.
+
+**Status markers:**
+- **Active** - Currently in use
+- **Splitting** - Being broken into smaller repos
+- **Planned** - Will be created (from split or new)
+
+## Repositories
+
+### Organization
+
+| Repo | Purpose | Status | Visibility |
+|------|---------|--------|------------|
+| architecture | Org source of truth: manifesto, Claude tooling, learnings | Active | Public |
+
+### Platform
+
+| Repo | Purpose | Status | Visibility |
+|------|---------|--------|------------|
+| arcadia | Monorepo containing platform code | Splitting | Private |
+| aether | Event sourcing runtime with bytecode VM | Planned (from Arcadia) | Private |
+| iris | WASM UI framework | Planned (from Arcadia) | Public |
+| eskit | ES primitives (aggregates, events, projections, NATS) | Planned (from Arcadia) | Public |
+| adl | Domain language compiler | Planned (from Arcadia) | Private |
+| studio | Visual process designer, EventStorming tools | Planned (from Arcadia) | Private |
+
+### Infrastructure
+
+| Repo | Purpose | Status | Visibility |
+|------|---------|--------|------------|
+| gitserver | K8s-native git server (proves ES/IRIS stack) | Planned | Public |
+
+## Relationships
+
+```
+arcadia (splitting into):
+├── eskit (standalone, foundational)
+├── iris (standalone)
+├── aether (imports eskit)
+├── adl (imports aether)
+└── studio (imports aether, iris, adl)
+
+gitserver (will use):
+├── eskit (event sourcing)
+└── iris (UI)
+```
+
+## Open Source Strategy
+
+See [repo-conventions skill](skills/repo-conventions/SKILL.md) for classification criteria.
+
+**Open source** (public):
+- Generic libraries that benefit from community (eskit, iris)
+- Infrastructure tooling that builds awareness (gitserver)
+- Organization practices and tooling (architecture)
+
+**Proprietary** (private):
+- Core platform IP (aether VM, adl compiler)
+- Product features (studio)
+
+## Related
+
+- [Manifesto](manifesto.md) - Organization identity and beliefs
+- [Issue #53](https://git.flowmade.one/flowmade-one/architecture/issues/53) - Git server proposal
+- [Issue #54](https://git.flowmade.one/flowmade-one/architecture/issues/54) - Arcadia split planning