Codex Collaboration Guidelines

Use OpenAI Codex as a collaborative sub-agent for brainstorming, plan validation, and code review. Treat output as a second opinion—critically evaluate, don't blindly accept.

Tools

• codex — Start new session (defaults to read-only sandbox)
• codex-reply — Continue session with prior context
• codex-review — Dedicated review mode (fresh session, specialized prompt)

When to Use

• Complex decisions where a second perspective adds value
• Architectural validation before implementation
• Plan validation before presenting to user
• Code review after significant changes

When NOT to Use

• Simple, straightforward tasks
• Time-sensitive operations where latency matters
• Trivial changes that don't warrant discussion

Guidelines

• Form your own analysis first to ensure independent perspectives—avoid anchoring bias
• Prompt specifically with context (like any sub-agent)
• Use read-only sandbox unless explicitly required otherwise
• Use codex-reply for multi-turn discussions or reviews needing prior context
• Synthesize conclusions—don't just relay raw Codex output
• When developing plans (yourself or via Plan sub-agent), validate with Codex before presenting to user