name: plan description: | Create implementation plan with Codex consultation. Use when starting new features or significant changes. Triggers: "/plan", "plan this", "create a plan", "implementation plan". metadata: short-description: Implementation planning with Codex

Plan Skill - Implementation Planning

Create comprehensive implementation plans with Codex consultation.

Workflow

1. Gather Context

   • Explore codebase for related code
   • Understand existing patterns
   • Identify dependencies

2. Consult Codex for Design

   Task(subagent_type="general-purpose", prompt="""
   Consult Codex for implementation plan:
   
   codex exec --model o3 --sandbox read-only --full-auto "
   Plan implementation for: {feature}
   
   Context:
   - Existing codebase structure: {structure}
   - Related files: {files}
   - Requirements: {requirements}
   
   Provide:
   1. High-level approach
   2. Key components to create/modify
   3. Potential challenges
   4. Recommended order of implementation
   "
   
   Return concise plan summary.
   """)
   

3. Create Task List

   • Break down into actionable tasks
   • Set dependencies
   • Estimate scope (not time)

4. Review with User

   • Present plan
   • Gather feedback
   • Adjust as needed

Output Format

## Implementation Plan: {feature}

### Overview
{Brief description of approach}

### Components
1. {Component 1} - {what it does}
2. {Component 2} - {what it does}

### Tasks
- [ ] Task 1
- [ ] Task 2 (depends on Task 1)
- [ ] Task 3

### Considerations
- {Risk or consideration 1}
- {Risk or consideration 2}

### Codex Recommendation
{Summary of Codex's advice}

When to Use

• Starting new features
• Significant refactoring
• Architecture changes
• Complex bug fixes

Example Usage

User: "/plan Add user authentication"

Response:

1. Explore existing auth-related code
2. Consult Codex for auth design
3. Create task breakdown
4. Present plan for approval