Planner Generator Evaluator Pattern

Use this skill when

• a task is large enough to require structured delegation
• implementation quality depends on explicit evaluation
• a migration needs safer control points
• you want to avoid generator self-approval

Goals

• separate planning from implementation
• separate implementation from verification
• reduce false completion claims
• improve traceability and decision quality

Responsibilities

• planner: defines phases, constraints, acceptance criteria, and verification points
• generator: produces candidate implementation for approved scope
• evaluator: determines whether the implementation is actually verified

Process

1. Define the problem.
2. Ask planner to create the phased path.
3. Ask generator to implement only one approved phase.
4. Ask evaluator to assess the result against evidence.
5. Feed failures and weak spots into future planning or harness improvement.

Output contract

Return:

• recommended delegation
• phase boundaries
• evidence boundaries
• stop/go points