> ## Documentation Index
> Fetch the complete documentation index at: https://drevon.trysudosu.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# OpenAI Codex

> Drevon's adapter for OpenAI's Codex CLI agent.

## Overview

OpenAI Codex CLI reads instructions from `AGENTS.md` in the repository root. Drevon generates this as a standard markdown file.

## Output File

```
AGENTS.md
```

## Enabling

```bash theme={null}
drevon add-agent codex
```

Or in `drevon.config.json`:

```json theme={null}
{
  "agents": {
    "codex": {
      "enabled": true
    }
  }
}
```

## Agent-Specific Settings

```json theme={null}
{
  "agents": {
    "codex": {
      "enabled": true,
      "extraInstructions": [
        "Prefer simple solutions over clever ones",
        "Always include error handling"
      ]
    }
  }
}
```

## Requirements

* Codex CLI installed (`npm install -g @openai/codex`)
* `AGENTS.md` in the repository root (Drevon handles this)