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

# Codex

> Use Codex for your Coordinator and workers.

## Setup

Install the [Codex CLI](https://developers.openai.com/codex/cli/) and sign in on the machine running Flowfield. Flowfield uses the installed `codex app-server` directly.

In **Settings → Harnesses**, keep detected paths or override the executable and configuration directory. Accounts stay in Codex. See [shared setup](/agents/overview).

## Models and access

Models, reasoning effort, access modes and Fast availability come from Codex. Tool approval requests offer one-time allow/deny choices; choose the saved access mode for broader policy changes. Persistent permission grants are not exposed.

Choose Coordinator and workspace worker defaults independently; task **Agent settings** can override the next attempt. See [worker setup](/worker-setup).

Workspace member repositories are added to the Coordinator’s writable roots in **Agent** mode.
The managed working directory stays separate. **Read only** and **Full access** retain their native
permissions; task workers keep their isolated checkout scope.

## Commands

The Coordinator supports `/compact`, `/status`, `/mcp` and `/skills`. Compaction uses the native thread control. Status shows the current choice; MCP and skills use native inventories.

## Sessions and Stop

Compatible model and access choices resume the native Coordinator session. Stop interrupts active turns and checks supported native background work.

See [Coordinator recovery](/coordinator#stop-and-continue-later) for saved history, fresh sessions and uncertain cleanup.

## Native customization

Codex loads its native repository instructions and skills. Flowfield supplies the workspace- or task-scoped MCP connection for each managed session.

## Standalone conversation

Use the [shared connection steps](/agents/overview#standalone-conversations) with `codex`:

```sh theme={null}
flowfield integration connect codex
```


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