Update specifications with discoveries made during development. Use when implementation reveals new requirements, constraints, or design changes.
Generate technical plans from specifications. Use when creating architecture documents, designing system components, or preparing for implementation.
Pattern investigation and technical research before specification. Use when technical approach is unclear, exploring existing solutions, or analyzing codebase patterns. Supports deep research mode for thorough external investigation.
Compare implementation against specifications, identify gaps and issues. Use for code review, quality assurance, and verifying spec compliance.
Execute planned implementations following todo-lists systematically. Use for code generation, building features, and executing SDD plans.