Interlock Operations Skill

This skill governs operational behavior for Interlock enforcement.

Core Rules

1. Never Publish Enforcement Heuristics

Enforcement logic is internal. Never commit or document:

Threshold values for enforcement decisions
Specific trigger conditions
Bypass mechanisms or exceptions
Internal scoring algorithms

Reason: Publishing enforcement heuristics enables gaming.

2. Every Enforcement Action Must Emit a Receipt

No silent enforcement. Every action must produce:

{
  "action": "refusal|degradation|allowance",
  "timestamp": "2026-01-10T12:00:00Z",
  "reason": "quality_floor_breach",
  "incident_id": "int-123456",
  "confidence": 0.45,
  "threshold": 0.80
}

3. Receipt Format Changes Require Validation

Before changing receipt schema:

Update the schema definition
Create positive test fixture
Create negative test fixture
Run ./scripts/claude/receipt_audit.sh
Verify both positive and negative tests pass

4. Any Failure = Degrade/Refuse

Never allow silent passes:

| Scenario | Action | |----------|--------| | Validator unavailable | REFUSE | | Schema mismatch | REFUSE | | Confidence unknown | REFUSE | | Timeout | DEGRADE | | Partial data | DEGRADE |

Receipt Lifecycle

1. EMIT    → Receipt generated at decision point
2. SIGN    → Cryptographic signature applied
3. STORE   → Written to forensic log
4. VERIFY  → Schema validation on read
5. AUDIT   → Periodic integrity check

Validation Commands

# Full receipt audit with negative tests
./scripts/claude/receipt_audit.sh

# Public safety check (no secrets in receipts)
./scripts/claude/public_safety_check.sh

Schema Files

| File | Purpose | |------|---------| | schemas/interlock_event.schema.json | Event schema definition | | schemas/golden_fixture.jsonl | Known-good test fixtures | | receipts/examples/operatorpack_example_pass.json | Valid receipt | | receipts/examples/operatorpack_example_fail.json | Invalid receipt (for negative test) |

Prohibited Actions

Publishing enforcement thresholds
Silent passes on validation failures
Modifying receipts after signing
Skipping negative tests
Committing real receipts to public repo