<!-- Context: openagents-repo/lookup | Priority: high | Version: 1.0 | Updated: 2026-02-15 -->

# Compatibility Layer - Executive Summary

**Issue**: #141 | **Branch**: `devalexanderdaza/issue141` | **Updated**: 2026-02-05

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## Quick Status

```
Progress: ████████████░░░░░░░░ 59.4% (19/32 subtasks)

✅ Phase 1: Foundation    - 6/6 complete
✅ Phase 2: Adapters      - 6/6 complete  
✅ Phase 3: Mappers       - 7/7 complete
⬅️ Phase 4: CLI          - 0/6 pending (NEXT)
📝 Phase 5: Documentation - 0/7 pending
```

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## Codebase Stats

| Metric | Value |
|--------|-------|
| Source Lines | 5,799 (14 files) |
| Test Lines | 6,322 (9 files) |
| Tests | 485 passing |
| Coverage | 97-100% on Phase 3 |

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## What's Implemented

### Adapters (3)
- `ClaudeAdapter` - .claude/ format ↔ OAC
- `CursorAdapter` - .cursorrules ↔ OAC  
- `WindsurfAdapter` - .windsurf/ ↔ OAC

### Mappers (4)
- `ToolMapper` - bash↔terminal, task↔delegate
- `PermissionMapper` - granular↔binary
- `ModelMapper` - model IDs with fallbacks
- `ContextMapper` - context paths between platforms

### Core (2)
- `CapabilityMatrix` - feature compatibility analysis
- `TranslationEngine` - orchestrates all mappers

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## What's Next

**Phase 4: CLI Tool** (8h estimated)
1. CLI scaffolding (Commander.js)
2. `convert` command
3. `validate` command
4. `migrate` command
5. `info` command
6. Integration tests

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## Key Commands

```bash
# Work directory
cd packages/compatibility-layer

# Build & Test
npm run build      # Compile TypeScript
npx vitest run     # Run all tests
npx vitest run --coverage  # With coverage

# Git
git log --oneline -5  # Recent commits
```

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## Feature Parity

| Feature | OAC | Claude | Cursor | Windsurf |
|---------|:---:|:------:|:------:|:--------:|
| Multi-Agent | ✅ | ✅ | ❌ | ✅ |
| Hooks | ✅ | ✅ | ❌ | ❌ |
| Granular Perms | ✅ | ❌ | ❌ | ❌ |
| Skills | ✅ | ✅ | ❌ | ⚠️ |
| Temperature | ✅ | ❌ | ⚠️ | ✅ |

---

## Reference Files

- Progress: `lookup/compatibility-layer-progress.md`
- Structure: `lookup/compatibility-layer-structure.md`
- Adapters: `lookup/compatibility-layer-adapters.md`
- Workflow: `guides/compatibility-layer-workflow.md`
