What is config-codex-cli?

A guided setup for connecting the OpenAI Codex command-line tool to OmniRoute as an OpenAI-compatible backend. It detects the operating system and shell, writes configuration, and verifies the connection.

Configure Codex on Linux, macOS, or Windows, create seven named profiles, set environment variables, and check that the setup works.

It avoids manually editing Codex settings and environment variables on different kinds of computers. It also documents session-affinity settings needed for long-running work to keep using the same session context.

config-codex-cli — Skill by diegosouzapw

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 skills/diegosouzapw/omniroute/config-codex-cli

Any agent

npx skills add diegosouzapw/OmniRoute --skill config-codex-cli

Clone the repo

git clone --depth 1 https://github.com/diegosouzapw/OmniRoute

Made for: Claude Code, Codex.

Per session 66 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 687 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.

Model	Per session	Once invoked
Fable 5	$0.00066	$0.00687
Opus 5	$0.00033	$0.00344
Sonnet 5	$0.00013	$0.00137
Haiku 4.5	$0.00007	$0.00069

Measured 2d ago against content hash 2a85801bb363, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

config-codex-cli 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 2d ago.

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.

Origin

Copies of this mod

1 near-identical copy found in the catalogue:

config-codex-cli — 100% identical, 0 lines differ

skills/config-codex-cli/SKILL.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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.

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

Dashboard → Settings → Routing → Session affinity → Affinity TTL = 43200 (12h) or 86400 (24h max).
OmniRoute environment:

Read the full file on GitHub · 57 lines

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.

2d ago First seen · 57 lines · 66 tokens per session scan A 2a85801bb363

Subscribe to this mod's changes

config-codex-cli is a skill published in the GitHub repository diegosouzapw/OmniRoute (59,841 stars, last pushed today), licensed MIT. It adds 66 tokens to every session and 687 once invoked, about $0.0003 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.

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