# Codex

> Start an OpenAI Codex CLI session for deep reasoning and code analysis

- Skill: `agentic-box/codex` (Agent Skill)
- Install (CLI): `npx skillmds@latest add agentic-box/codex`
- Raw SKILL.md: https://api.skillmd.com/api/skills/agentic-box/codex/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: agentic-box (https://skillmd.com/u/agentic-box)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/agentic-box/codex

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# Codex Session

Start a Codex CLI session for deep reasoning, code review, and analysis.

## Instructions

1. Take the user's prompt from: $ARGUMENTS
2. If no argument provided, ask what they want Codex to help with
3. Determine if new or continuation:
   - New topic: Use `start_codex_session`
   - Follow-up: Use `resume_codex_session`
4. Return immediately with the task_id
5. Tell the user:
   - "Codex started (task: <task_id>)"
   - "Check results with: `/codex-result <task_id>`"

**Do NOT call wait_for_task. Return immediately.**

## Usage

- `/codex Explain how the auth flow works`
- `/codex Find bugs in this function`