# Rigorous Interop Milestone: Final Verification Summary

**Status:** ✅ ACHIEVED (May 12, 2026)

## Gate Completion Status

All 12 gates of the Rigorous Interop acceptance framework are now **PASS**.

| Band | Gates | Status | Commit |
|------|-------|--------|--------|
| **Foundation** | G1-G6 | ✅ PASS | [docs](docs/rigorous_interop_acceptance_checklist.md) |
| **Controlled Interop** | G7-G9 | ✅ PASS | d19b970, e205997, bc4a05c, e2aafb9 |
| **Rigorous Interop** | G10-G12 | ✅ PASS | 4447582, 096ea13, 311420c |

## Test Suite Summary

**Total Tests Executed: 110 PASS**

| Test File | Tests | Status | Details |
|-----------|-------|--------|---------|
| `test_adapter_tool_trace_conformance.py` | 16 | ✅ PASS | G10: Tool trace metadata schema compliance |
| `test_adapter_capability_conformance.py` | 15 | ✅ PASS | G11: Adapter capability declarations |
| `test_g12_interop_conformance.py` | 12 | ✅ PASS | G12: CI conformance suite |
| `test_docs_checkpoint.py` | 67 | ✅ PASS | Documentation validation |
| **TOTAL** | **110** | **✅ PASS** | All gates verified |

## Key Achievements

### G1-G6: Foundation Band ✅
- Evidence-only import policy enforced
- Package validator detects missing resources  
- Constraints schema complete
- Known-only extraction rule implemented
- Roundtrip invariance proven
- Claim thresholds formalized

### G7-G9: Controlled Interop Band ✅
- CAD writeback execution path closed (G7)
- Roundtrip determinism fixtures added (G8)  
- Claim decision policy per claim ID (G9)
- 3 commits verified

### G10-G12: Rigorous Interop Band ✅
- **G10:** Tool trace metadata with 16 conformance tests
  - Required fields validation (entry_id, tool, step, etc.)
  - Role/exit-status constraint enforcement
  - ClaimPolicy const-guard verification
- **G11:** Adapter capabilities with 15 conformance tests
  - 8 adapters declared (L0-L5 capability levels)
  - Supported resources validation
  - Known limitations tracking
- **G12:** CI conformance suite with 12 deterministic tests
  - Package structure invariants
  - Evidence scaffold determinism
  - Tool trace entry ID uniqueness
  - CI reporting artifacts

## Milestone Definition Met

**Rigorous Interop** = AI agents can:

1. ✅ Understand structured engineering models before calling tools
2. ✅ Inspect adapter metadata to determine extraction quality
3. ✅ Verify tool trace provenance for reproducibility
4. ✅ Validate roundtrip invariance through CI fixtures
5. ✅ Generate deterministic, validated patch proposals
6. ✅ Distinguish between known facts, inferred meaning, and uncertain data
7. ✅ Apply engineering safety rules (no unsupported claims)
8. ✅ Execute with traceable, evidence-backed decisions

## CI Integration

- **Workflow:** `.github/workflows/g12-conformance.yaml`
- **Runs:** On every push to main and all PRs
- **Artifacts:** Conformance report XML + HTML + JSON
- **Comments:** Auto-reports status on PRs
- **Retention:** 30 days

## Documentation

- **Acceptance Checklist:** [rigorous_interop_acceptance_checklist.md](docs/rigorous_interop_acceptance_checklist.md)
- **Adapter Capabilities:** [adapter_capability_declarations.json](docs/adapter_capability_declarations.json)
- **Schemas:** All 20+ schemas versioned in `schemas/`
- **Architecture:** [architecture.md](docs/architecture.md)

## Next Steps (Post-Rigorous Interop)

Recommended follow-on work:

1. **Extend to multi-body assemblies** (G13 future gate)
2. **Add nonlinear simulation context** (G14 future gate)
3. **Implement deterministic edit workflow** (G15 future gate)
4. **Build visual annotation mapping** (G16 future gate)
5. **Deploy production validation service**

## Safety Summary

✅ **No unsupported engineering claims are allowed in patches**

✅ **All claim advancement requires explicit evidence references**

✅ **Evidence importers are deterministic and traceable**

✅ **Adapter quality is declared and validated**

✅ **Roundtrip invariance is verified per fixture**

✅ **Tool provenance is complete and queryable**

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**Milestone achieved with 110 tests passing, 12 gates complete, and deterministic CI validation.**

For maintenance and continuation, refer to [AGENTS.md](AGENTS.md) and the maintenance protocol in the acceptance checklist.
