# Experiment 60B.61 — Decision Remaining-Material-Factor Detection

## Status: PASSED

### Objective
Answer: *Does the dedicated remaining-material-factor helper work correctly once malformed tests are repaired, without any broader applyValidatedProposal integration?*

**Answer: YES.**

### Scope (bounded)
Helper detection experiment only. No closure integration.

### Production code added (2 helpers + internal support)

| Export | Role |
|--------|------|
| `hasRemainingMaterialFactors(decisionNodeId, graph)` | Public boolean — `true` if any unresolved unknown remains material to the decision |
| `countRemainingMaterialFactors(decisionNodeId, graph)` | Count variant — used internally by `hasRemainingMaterialFactors`; kept as exported for potential future use |

- **Set-based deduplication** of factor IDs across routes (no double-count)
- **Decision self-count excluded** (`node.id === decisionNodeId`)
- **Terminal statuses excluded**: `known`, `resolved`, `contradicted`
- **Helper-only**. No integration into `applyValidatedProposal` return, no closure logic change.

### Supported Routes

| Route | Relationship Path |
|-------|-------------------|
| A — hierarchy | `parentId` chain or `childIds` membership |
| B — direct dependency | `depends_on` edge to decision |
| C — consequence | unknown → `{affects,may_cause,causes}` → option → `contained_in` → decision |
| D — containment | unknown → `contained_in` → option → `contained_in` → decision |

### Excluded (returns false)

- Known / resolved / contraduted statuses
- `supports` / `measures` weak links
- Arbitrary non-approved connectivity (`other`)
- The decision node itself
- Non-unknown kind nodes (e.g., observations)

### Test Suite (14 cases in 60B.61 block)

1. Containment-only unresolved factor → **true**
2. Same factor resolved → **false**
3. `may_cause` option-linked factor → **true**
4. Valid direct `depends_on` factor → **true**; resolved → **false**
5. Hierarchy child factor → **true**
6. Supports / measures weak link → **false**
7. Decision node alone does not self-count → **false**
8. Another genuine unresolved hierarchy child remains → **true**
9. Status = known excluded → **false**
10. Status = contradicted excluded → **false**
11. Non-unknown kinds excluded → **false**
12. 60B.56 sufficiency (all factors resolved) → **false**
13. Arbitrary connectivity via `other` edge → **false**
14. Additional resolution state within Route B test → **false**

### Regression Preservation

- **60B.43**: PASSED
- **60B.11**: PASSED
- **Pricing prerequisite-first**: PASSED

### Git Commits

```
feat(reasoning): detect remaining decision factors
docs: record decision factor detection
```

WHAT IS NOW GUARANTEED
---

The helper `hasRemainingMaterialFactors(decisionNodeId, graph)` correctly identifies unresolved material factors for a decision node across all four approved routes (A–D), with Set-based deduplication and proper terminal-status exclusion. No production behaviour outside the helper itself was changed.

WHAT REMAINS OPEN
---

Decision-sufficiency closure integration remains a separate next experiment. The helper detects but does not influence any decision-closure logic at this time.