augment-plan

Augment an existing Execution Plan (ExecPlan) with CLI design requirements and project scaffolding guidance. Use this skill whenever the user wants to "augment a plan", "add CLI requirements to a plan", "add scaffolding to a plan", "enrich a plan with CLI design", "make my plan CLI-ready", "add agent-first CLI patterns to my plan", or mentions "augment plan", "plan augmentation", "CLI plan", or "scaffold plan" in the context of enhancing an existing ExecPlan. Also triggers when the user has an existing PLAN.md and wants to add CLI interface design, structured output patterns, error handling contracts, or project scaffolding milestones. Covers both adding CLI-specific milestones (structured envelopes, error codes, exit codes, guide commands, dry-run, safety flags) and scaffolding milestones (repo layout, documentation, agent guidance files, quality infrastructure). Even if the user only mentions one aspect (e.g., "add CLI stuff to my plan" or "add scaffolding steps"), use this skill — it handles both independently.