Implement Task

Implement Task Skill

Implement a specific task from a PRD's Implementation Plan (Section 6).

Arguments

The user provides:

• PRD number (e.g., PRD-005) or path
• Task number (e.g., Task 3)

If not given, ask which PRD and task to implement.

Workflow

1. Locate PRD: Find the file in wiki/inbox/, wiki/active/, or wiki/completed/
2. Read Section 6: Find the task table and Claude Code Task Annotations
3. Read annotations: Extract Context needed, Constraints, Done state, Verification command
4. Read context files: Read every file listed in "Context needed"
5. Check dependencies: Ensure dependent tasks are completed
6. Implement: Follow the constraints strictly
7. Verify: Run the verification command
8. Report: State what was done and verification results

Annotation Format

Each task annotation looks like:

**Task N (Name)**:

- **Context needed**: [files to read]
- **Constraints**: [what NOT to do]
- **Done state**: [completion criteria]
- **Verification command**: [shell command]

Implementation Rules

• Read ALL context files before writing any code
• Follow ALL constraints — they exist for a reason
• Check dependencies — don't implement Task 3 if Task 2 isn't done
• Match existing patterns — read reference files and follow conventions
• Run verification — the task isn't done until the command passes

After Implementation

• If the task is the last one in the PRD, suggest running /check-prd to verify all success criteria
• If the PRD is in wiki/inbox/, suggest moving it to wiki/active/ with /move-prd

Common Verification Commands

Error Handling

If the verification command fails:

1. Read the error output carefully
2. Fix the issue
3. Re-run verification
4. If stuck, report what failed and suggest next steps