---

name: countdown description: "Countdown - pre-implementation validation. Runs oracle (Opus) for planning, then Go Poll with review agents (Haiku) to validate before coding starts."

Countdown

The pre-launch sequence for validating a plan before implementation begins.

Usage

Copy/countdown [issue-number]

What This Does

Countdown is the pre-implementation workflow:

1. Plan - Oracle creates/refines implementation plan
2. Go Poll - Review agents validate the plan
3. Iterate - Fix issues until all agents report GO
4. Launch - Begin implementation only when validated

Sequence

Phase 1: Oracle Planning

Oracle creates the implementation plan at:

Copy~/.claude/plans/reovim/{issue_number}-{subject}.md

Phase 2: Go Poll

Review agents validate the plan:

A+ Skip Rule

If an agent gives ALL A+ in round N, skip that agent in round N+1.

Output Structure

Copytmp/{ISSUE}/
└── countdown/
    └── round-{N}/
        ├── mission-control.md
        ├── telemetry.md
        └── flight-director.md

Grading Scale

Success Criteria

Must achieve A+ from ALL THREE review agents before implementation.

If any agent gives below A+:

1. Refine the plan based on feedback
2. Re-run /countdown
3. Repeat until all agents report "go"

Instructions

When invoked, you MUST:

1. Determine the issue number from context (git branch, user input, or ask)
2. Check if a plan exists at ~/.claude/plans/reovim/{issue}-*.md
3. If no plan exists or plan needs refinement:
   • Launch oracle agent (Opus) to create/refine the plan
4. Determine the round number (start at 1, increment for re-reviews)
5. Check previous round grades - skip agents with A+ from prior rounds
6. Create the output directory: tmp/{ISSUE}/countdown/round-{N}/
7. Launch review agents IN PARALLEL using Task tool with model: "haiku"
8. After all agents complete, summarize the grades in a table
9. If any grade is below A, list what needs to be fixed in the plan

Phase 1: Oracle (if needed)

CopyCreate/refine implementation plan for issue #{ISSUE}.

You are Oracle - the far-seeing architect.

1. Understand the requirements from the issue
2. Explore the codebase to understand current architecture
3. Design a phased implementation plan

Write the plan to: ~/.claude/plans/reovim/{ISSUE}-{subject}.md

Include:
- Summary and approach
- Phases with specific files and changes
- Risks and mitigations
- Test strategy
- Acceptance criteria

Phase 2: Review Agents

Agent 1 (mission-control):

CopyCountdown review for issue #{ISSUE} (Round {N}).

You are Mission Control validating the plan before launch.

Focus: Plan completeness and clarity.

1. Read the plan at ~/.claude/plans/reovim/{ISSUE}-*.md
2. Verify all phases have clear acceptance criteria
3. Check dependencies between phases
4. Ensure scope is well-bounded

Write your report to: tmp/{ISSUE}/countdown/round-{N}/mission-control.md

End with: "Mission Control: GO / NO-GO" and grade (A+/A/B/C/F).

Agent 2 (telemetry):

CopyCountdown review for issue #{ISSUE} (Round {N}).

You are Telemetry validating the test strategy.

Focus: Test coverage planning.

1. Read the plan at ~/.claude/plans/reovim/{ISSUE}-*.md
2. Verify test strategy covers happy paths, errors, edge cases
3. Check that critical functionality has test targets
4. Identify any testing gaps

Write your report to: tmp/{ISSUE}/countdown/round-{N}/telemetry.md

End with: "Telemetry: GO / NO-GO" and grade (A+/A/B/C/F).

Agent 3 (flight-director):

CopyCountdown review for issue #{ISSUE} (Round {N}).

You are Flight Director validating the architecture.

Focus: Unix philosophy and layer boundaries.

1. Read the plan at ~/.claude/plans/reovim/{ISSUE}-*.md
2. Verify mechanism vs policy separation
3. Check layer boundaries are respected
4. Assess complexity and simplicity

Write your report to: tmp/{ISSUE}/countdown/round-{N}/flight-director.md

End with: "Flight Director: GO / NO-GO" and grade (A+/A/B/C/F).

CRITICAL:

• Launch oracle with model: "opus" for planning
• Launch review agents with model: "{model}" for validation
  • model: "haiku" for fast, efficient reviews
  • model: "sonnet" for comprehensive, precise reviews
• Skip agents that received ALL A+ in previous rounds
• Do NOT start implementation until all agents report GO