MCPInstall

config-codex-cli

by cheaper-inferenceAI & Agents

Step-by-step agent workflow to configure the OpenAI Codex CLI on any machine (Linux, macOS, Windows) to use OmniRoute as an OpenAI-compatible backend. Detects OS and shell, writes config.toml and 7 named profiles, sets environment variables, and verifies the setup.

Installs
1K
Last 24h
+22
Trending rank
#5564
Security
Not audited

Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/cheaper-inference/omniroute --skill config-codex-cli
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads config-codex-cli automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

<!-- generated by src/lib/agentSkills/generator.ts; manual edits will be overwritten -->

Overview

Step-by-step agent workflow to configure the OpenAI Codex CLI on any machine (Linux, macOS, Windows) to use OmniRoute as an OpenAI-compatible backend. Detects OS and shell, writes config.toml and 7 named profiles, sets environment variables, and verifies the setup.

Quick install

npm install -g omniroute   # or: npx omniroute
omniroute --version

Subcommands

No CLI subcommands mapped for this family yet.

<!-- skill:custom-start -->

Long-running Codex tasks (#7287)

Two OmniRoute defaults silently break multi-hour Codex sessions. Document them whenever configuring Codex for overnight / multi-hour work. Full guide: docs/guides/CODEX-CLI-CONFIGURATION.md → Long-running tasks.

Session affinity (default off)

  • Setting: sessionAffinityTtlMs (ms; UI shows Affinity TTL (seconds) under Dashboard → Settings → Routing → Session affinity). Legacy alias: codexSessionAffinityTtlMs.
  • Default 0 = disabled. Each turn can land on a different account and break prompt-cache / session continuity.
  • Codex session keys (x-codex-session-id, x-session-id, x-omniroute-session, body prompt_cache_key / session_id) are only used for pinning when TTL > 0.
  • Max: 86400 seconds / 86400000 ms (24h). Set TTL above the expected task length (e.g. 43200 s for ~12h).

Stream idle timeout (default 10 minutes)

  • Env: STREAM_IDLE_TIMEOUT_MS (default 600000). Also consider FETCH_BODY_TIMEOUT_MS (same baseline; 0 disables).
  • Synthetic SSE heartbeats do not reset the idle clock — only real upstream chunks do.
  • A quiet reasoning turn past the idle window is force-closed (stream_idle_timeout / StreamIdleTimeoutError). Grep logs for Idle timeout: no data from.

Recommended multi-hour recipe

  1. Dashboard → Settings → Routing → Session affinity → Affinity TTL = 43200 (12h) or 86400 (24h max).
  2. OmniRoute environment:
STREAM_IDLE_TIMEOUT_MS=0
FETCH_BODY_TIMEOUT_MS=0
  1. Restart OmniRoute. Leave Codex config.toml as usual (wire_api = "responses", correct base_url).

Defaults decision

Do not flip ship defaults in code for this skill: sessionAffinityTtlMs stays 0 and STREAM_IDLE_TIMEOUT_MS stays 600000. Long-running operators must opt in. See Discussion #5718 and issue #7287.

<!-- skill:custom-end -->

FAQ

What does the config-codex-cli skill do?

Step-by-step agent workflow to configure the OpenAI Codex CLI on any machine (Linux, macOS, Windows) to use OmniRoute as an OpenAI-compatible backend. Detects OS and shell, writes config.toml and 7 named profiles, sets environment variables, and verifies the setup.

How do I install config-codex-cli?

Run npx skills add https://github.com/cheaper-inference/omniroute --skill config-codex-cli in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/config-codex-cli/ (personal) or .claude/skills/config-codex-cli/ (project).

Which AI agents can use config-codex-cli?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is config-codex-cli safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains config-codex-cli?

It is published by cheaper-inference in cheaper-inference/omniroute. It has 1,012 recorded installs.

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