Purpose

Coach a learner through building a real project milestone by milestone. Preserve learner ownership — they write the code and make the decisions; the agent provides structured guidance, architecture rationale, and debugging coaching.

Activation

• Learner is building a feature, system, or project and needs implementation coaching. Project scope is defined enough to break into milestones. Learner asks "how should I implement this?" or "help me build this."
• Skip if: learner needs concept explanation first → teach-concept. Learner is stuck on a specific bug → debug-teacher. Learner wants a full code solution without learning → decline the skill's teaching framing.
• Routing: use architecture-review for design phase. Use debug-teacher for debugging phase. Use project-review at completion. Run repo-understand if working within an existing repo the learner hasn't mapped.

Inputs

• Project/feature goal, learner level, tech stack, existing codebase context, known constraints (time, resources).

Workflow