Status: IN
The restraint principle (design expertise constitutively involves knowing what not to do) is implemented at the pattern level through incremental adoption mechanisms: Strategy's optional participation and Mediator's optional abstraction class both demonstrate patterns designed for partial application — translating the abstract restraint principle into concrete pattern-level design decisions that reduce the cost of judgment errors by allowing graceful degradation rather than all-or-nothing commitment.
Restraint principle at the conceptual level; incremental adoption mechanisms implement it at the pattern level
Depends on (SL): restraint-principle-unifies-pattern-judgment-and-dip-warning, strategy-optional-default-exemplifies-principled-pattern-application, mediator-abstraction-optional-validates-judgment-over-mechanism