Dev-workflow discipline — plan before code, interview the spec, test-driven, review — skills that slow the agent down exactly where it matters.
Grill the user relentlessly about a plan or design. Use when the user wants to stress-test a plan before building, or uses any 'grill' trigger phrases.
Use when implementing any feature or bugfix, before writing implementation code
Use when you have a spec or requirements for a multi-step task, before touching code