This skill is self-contained — follow the task loop, TDD rules, and completion flow below instead of delegating to external build/execution skills (superpowers, etc.).
Execute tasks from an implementation plan. Finds plan.md (in docs/plan/), picks the next unchecked task, implements it with TDD workflow, commits, and updates progress.
After /plan has created a track with spec.md + plan.md. This is the execution engine.
Execute implementation plan tasks with TDD workflow, auto-commit, and phase gates. Use when user says "build it", "start building", "execute plan", "implement tasks", "ship it", or references a track ID. Do NOT use for planning (use /plan) or scaffolding (use /scaffold). Source: fortunto2/solo-factory.