Plan the execution — read spec artifacts, review from multiple perspectives, then generate tasks.md. <decision boundary Use for: - Breaking down spec artifacts into implementation tasks (tasks.md) - Multi-role review of an execution plan before implementation - Re-generating or updating tasks for an existing change NOT for: - Creating spec artifacts like proposal, gherkin, or design.md (use ) - Exploring ideas or investigating a problem (use ) - Implementing code (use ) - Verifying implementation (use ) Trigger examples: - "Break down the tasks" / "Create execution plan" / "Plan the implement…