Activation Contract

Load this skill when reviewing refactor plans for: open closed principle, OCP, strategy, policy, polymorphism.

Hard Rules

Look for repeated conditionals by type, state, operation, or strategy.
Suggest strategy, policy, or polymorphism only when new variants are likely or already present.
Block pattern use when a simple conditional is clearer.
Preserve observable behavior; label functional changes as follow-up.
Require evidence for every recommendation, or mark it as a hypothesis.

Signal	Action
Concrete evidence exists	Create a finding with file, lines, symbol, benefit, validation, and rollback.
Evidence is incomplete	Mark as hypothesis and lower confidence.
Recommendation is cosmetic or speculative	Omit it unless maintainability benefit is clear.