Pattern Proposal: Declarative Schema-Enforced Compliance Evaluation

Summary

Validates runtime decisions and code changes against rule schemas, producing strongly-typed ComplianceFinding objects.

Candidate Pattern

• ID: declarative-schema-enforced-compliance
• Classification: governance
• Maturity: established
• Type: implemented

Observed Signals

No specific signals listed.

Evidence

Supporting Evidence

• src/cas_runner/governance/compliance_engine.py (ComplianceEngine) - Executes compliance checks against rules.
• src/cas_runner/governance/models.py (ComplianceFinding, ComplianceMetrics) - Typed models defining findings, severities, and metrics.

Scope Assessment

• Evidence Strength: high
• Confidence: high
• Applies to: ideas-to-life-cas

Rationale

• Intent: Prevent subjective or ambiguous LLM evaluation outputs by constraining compliance metrics to strictly validated schemas.
• Context: Invoked during CI/CD checks and CAS runner compliance reviews against rule-context.json.
• Force: Unstructured LLM reviews cannot trigger automated gating in CI/CD pipelines
• Force: Compliance checks must provide explicit severities, file references, and remediation steps

Traceability

Artifact source: proposed-patterns