writing-plans

Creates comprehensive implementation plans with exact file paths, complete code examples, and verification steps for engineers with zero codebase context. Assumes skilled developers who need domain-specific guidance, following DRY, YAGNI, and TDD principles. Use after brainstorming/design is complete when handing off to another developer or planning complex multi-step work. Do NOT use for simple tasks, quick fixes, or when you're implementing yourself and already understand the codebase - just start coding instead.