What is spec-driven?
Specification-driven development with structured phases (Initialize, Plan, Tasks, Implement+Validate). Creates structured feature specs with traceability to requirements. Use when planning features, implementing with verification, or tracking decisions across sessions. Also use when the user wants to break a feature into tasks, plan before coding, track implementation progress, or organize work into specs and plans. Triggers on "create feature", "plan", "tasks", "implement", "validate", "archive", "break this into tasks", "plan this feature". Source: adeonir/agent-skills.