Always respond in Japanese. Write all workflow documents (*.md) in Japanese.

/ghwf5-implement

実装計画の1ステップを実装する。

Usage

/ghwf5-implement          # 次のステップを実装
/ghwf5-implement <N>      # ステップ N を実装

Prerequisites

• ghwf4-review 完了済み (Plan レビュー)
• 03_PLAN.md が存在

Processing

1. Load Context

• Read state.json for active work
• Read 03_PLAN.md
• Fetch Issue/PR with comments:

  gh issue view <issue> --json body,comments
  gh pr view <pr> --json comments,reviews

• Identify next step to implement

2. Implement

• Write code according to plan
• Follow existing code patterns
• Add tests if applicable

3. Update 05_IMPLEMENTATION.md

• Track completed steps
• Note any deviations from plan

4. Commit & Push

Execute immediately without confirmation:

git add .
git commit -m "feat(<scope>): <description>

Implements step N of <work-id>"
git push

5. Check Completion

• All steps done → next: ghwf6-verify
• More steps → next: ghwf5-implement (same step)

6. Update PR & Labels

• PR チェックリスト更新
• ghwf:step-5 ラベル追加 (完了時)

7. Update State

{
  "current": "ghwf5-implement",
  "next": "ghwf6-verify",  // or "ghwf5-implement"
  "last_execution": "<ISO8601>",
  "implement": {
    "current_step": N,
    "total_steps": M
  }
}