Codex-Claude-Cursor Engineering Loop Skill

Core Workflow Philosophy

This skill implements a 3-way sequential validation engineering loop:

• Claude Code: Architecture and planning, final review
• Codex: Plan validation (logic/security), code review (bugs/performance)
• Cursor Agent: Code implementation and execution
• Sequential Validation: Claude plans → Codex validates → Cursor implements → Codex reviews → Claude final check → repeat

Phase 1: Planning with Claude Code

1. Start by creating a detailed plan for the task
2. Break down the implementation into clear steps
3. Document assumptions and potential issues
4. Output the plan in a structured format