| name | implement-feature |
| description | Implement a single work-item-spec. Orchestrates five phases (understand, plan, implement, review, finalize), each in a separate sub-agent to keep context clean. Use when the user asks to implement a work item or invokes /implement-feature. |
Implement Feature
Implement a single work-item-spec by orchestrating five phases, each in a separate sub-agent with clean context.
Input
Required: A work-item-spec (from /work-item-spec).
- Do not use this skill for design documents or use case documents — those describe entire features across many work items.
- If no work-item-spec is provided, stop and ask the user to provide one or run
/work-item-spec first.
- If the input is ambiguous, ask one clarifying question before proceeding.
Orchestration
Run each phase as a separate sub-agent using the Agent tool. Pass the work-item-spec and prior phase outputs to each agent. Do not start a phase until the previous phase completes successfully.
Phase 1 — Understand
Spawn a sub-agent with:
- The full work-item-spec
- The contents of
phases/understand.md as instructions
Expected output: An understanding summary — what is being built, which files and patterns are relevant, and any risks or ambiguities flagged.
Confirm the understanding summary with the user before proceeding.
Phase 2 — Plan
Spawn a sub-agent with:
- The full work-item-spec
- The Phase 1 understanding summary
- The contents of
phases/plan.md as instructions
Expected output: A task list created with TodoWrite. Each task maps to one small commit, is independently testable, and is ordered by dependency.
Phase 3 — Implement
Spawn a sub-agent with:
- The full work-item-spec
- The Phase 1 understanding summary
- The Phase 2 task list
- The contents of
phases/implement.md as instructions
Expected output: All tasks completed, all tests passing, all changes committed.
Phase 4 — Review
Spawn a sub-agent with:
- The full work-item-spec
- A summary of what was implemented (files changed, commits made)
- The contents of
phases/review.md as instructions
Expected output: All code simplified, verified, review issues addressed, changes pushed.
Phase 5 — Finalize
Spawn a sub-agent with:
- A summary of what was implemented (files changed, commits made)
- The contents of
phases/finalize.md as instructions
Expected output: PR created, user notified with the PR URL.
