Pattern Proposal: Pydantic Domain Entity Modeling

Summary

Domain entities and value objects are modeled using Pydantic models with validation and serialization.

Candidate Pattern

• ID: pydantic-domain-entity-modeling
• Classification: architectural
• Maturity: emerging
• Type: emerging

Observed Signals

No specific signals listed.

Evidence

Supporting Evidence

• src/cas_runner/governance/models.py (ResolutionResult, TraceableMetric, GovernanceInventory, GovernanceHealth, GovernanceThroughput, GovernanceRisks, ComplianceFinding, ComplianceMetrics, GovernanceException, GovernanceAction)
• src/cas_runner/steering/models.py (RawGitDelta, PromptFact, SteeringRuntimeIndex, CapabilityRecord, CapabilitySet, CapabilityLineage, ArchitecturalDelta)

Scope Assessment

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

Rationale

• Intent: Define strongly typed data structures for domain concepts and ensure data integrity.
• Context: Governance and steering modules need to represent complex inventory, health, and capability data.
• Force: Need for data validation
• Force: Desire for clear domain boundaries
• Force: Need for serialization to JSON/YAML

Traceability

Artifact source: proposed-patterns