codex

An integration for using OpenAI Codex, an AI coding agent available through the OpenAI API, alongside Operator.

In plain words
What is it for?
Use it to install the OpenAI CLI, enable Codex in Operator, connect an OpenAI API key, select a model, and pass relay information to Codex sessions.
Why use it?
It provides configuration and authentication instructions for running Codex through Operator, while making its experimental status and usage-based API pricing clear.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/untra/operator/codex
Clone the repo
git clone --depth 1 https://github.com/untra/operator
Per session 11 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 343 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00011 $0.00343
Opus 5 $0.00005 $0.00171
Sonnet 5 $0.00002 $0.00069
Haiku 4.5 $0.00001 $0.00034

Measured yesterday against content hash 7c3b6ccdc637, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

codex scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

docs/getting-started/agents/codex.md · 59 lines

What it actually says

Codex is the OpenAI code-specialized CLI agent, available through the OpenAI API.

Status

Codex integration is currently experimental. Features may be limited compared to other agents.

Installation

Install the OpenAI CLI:

npm i -g @openai/codex

Plans and Pricing

View OpenAI Codex pricing page

Configuration

See the full Codex agent configuration reference.

Add Codex to your Operator configuration:

# ~/.config/operator/config.toml

[agents.codex]
enabled = true
api_key_env = "OPENAI_API_KEY"
model = "gpt-4"

Authentication

Set your OpenAI API key:

export OPENAI_API_KEY="your-api-key"

Or add it to your shell profile for persistence.

Multi-agent relay

Operator injects relay env vars (RELAY_HUB_SOCKET, RELAY_AGENT_NAME) into Codex sessions at launch so agents can discover each other by ticket ID. Full MCP tool support for Codex relay is planned for a future release.

See Relay for details.

API Usage

Codex uses the OpenAI API which has usage-based pricing. Monitor your usage at platform.openai.com.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 59 lines · 11 tokens per session scan A 7c3b6ccdc637

Subscribe to this mod's changes

codex is an agent published in the GitHub repository untra/operator (36 stars, last pushed 4d ago), licensed MIT. It adds 11 tokens to every session and 343 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.