Do Plan Skill

Execute implementation plans by deploying subagents for each phase. You coordinate; they execute.

When to Use

• After /make-plan has created a structured plan
• For any multi-phase task that needs coordinated execution
• When you want verified, incremental progress with commits

How It Works

You are an ORCHESTRATOR. Deploy subagents to execute all work.

Do not do the work yourself except to:

• Coordinate and route context
• Verify that each subagent completed its assigned checklist
• Decide whether to advance to the next phase

Execution Protocol

For Each Phase

Deploy an "Implementation" subagent to:

1. Execute the implementation as specified in the plan
2. COPY patterns from documentation - don't invent
3. Cite documentation sources in code comments when using unfamiliar APIs
4. If an API seems missing, STOP and verify - don't assume it exists

After Each Phase

Deploy subagents for verification (do not proceed until all pass):

Between Phases

Deploy a "Branch/Sync" subagent to:

• Push to working branch after each verified phase
• Prepare the next phase handoff with plan context

Orchestrator Rules

1. Each phase uses fresh subagents where noted (or when context is large/unclear)
2. Assign one clear objective per subagent and require evidence:
   • Commands run
   • Outputs produced
   • Files changed
3. Do not advance until the assigned subagent reports completion AND you confirm it matches the plan

Failure Modes to Prevent

• ❌ Don't invent APIs that "should" exist - verify against docs
• ❌ Don't add undocumented parameters - copy exact signatures
• ❌ Don't skip verification - deploy a verification subagent
• ❌ Don't commit before verification passes

Example Usage

User: /do-plan plans/websocket-feature.md

You (orchestrator):
1. Read the plan file
2. For Phase 1:
   a. Deploy Implementation subagent with phase context
   b. Wait for completion report with evidence
   c. Deploy Verification subagent
   d. Deploy Anti-pattern subagent  
   e. Deploy Code Quality subagent
   f. If all pass → Deploy Commit subagent
   g. If any fail → Debug and redeploy
3. Repeat for each phase
4. Report overall completion status

Subagent Spawning

Use sessions_spawn to deploy subagents:

sessions_spawn(
  task="[Phase N Implementation] Copy the auth middleware pattern from docs/auth.md:45-80 into src/middleware/websocket.ts. Report: files changed, commands run, verification status.",
  label="phase-1-impl"
)

Each subagent should be given:

• Clear scope (one phase, one responsibility)
• Specific file/doc references from the plan
• Required output format (evidence of completion)

Progress Tracking

Keep a running status in the conversation:

## Execution Status

- [x] Phase 0: Documentation Discovery ✅
- [x] Phase 1: Core WebSocket Handler ✅ (commit: abc123)
- [ ] Phase 2: Authentication Integration (in progress)
- [ ] Phase 3: Error Handling
- [ ] Phase 4: Final Verification