What is codex-cli-model-bridge?

A management tool for adding and diagnosing third-party models in Codex through a local proxy. A proxy is an intermediary that forwards requests between an application and model services.

Use it to install, audit, repair, upgrade, remove, or restore custom Codex model providers and catalogs backed by CLIProxyAPI or Codex Router.

It keeps Codex's provider and subscription setup intact while making verified additional models available through the model picker.

codex-cli-model-bridge — Skill for Codex by zjp1997720/zhijian-skills

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.

Any agent

npx skills add zjp1997720/zhijian-skills --skill codex-cli-model-bridge

Clone the repo

git clone --depth 1 https://github.com/zjp1997720/zhijian-skills

Made for: Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/zjp1997720/zhijian-skills/codex-cli-model-bridge/github.svg)](https://agentmods.dev/skills/zjp1997720/zhijian-skills/codex-cli-model-bridge)

Your own site

<a href="https://agentmods.dev/skills/zjp1997720/zhijian-skills/codex-cli-model-bridge"><img src="https://agentmods.dev/badge/skills/zjp1997720/zhijian-skills/codex-cli-model-bridge/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/zjp1997720/zhijian-skills/codex-cli-model-bridge"><img src="https://agentmods.dev/badge/skills/zjp1997720/zhijian-skills/codex-cli-model-bridge.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 142 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 3,973 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe. Third-party audits

NVIDIA SkillSpector warn 7 Sept 2026

SkillSpector: 6 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

high Agent Snooping · line 46
Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.

Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
high Agent Snooping · line 85
Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.

Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
high Agent Snooping · line 182
Skill reads from agent configuration directories (.claude/, .codex/, .gemini/). These directories may contain API keys, personal settings, and other credentials that the skill has no legitimate need to access.

Fix: Remove all code or instructions that access agent configuration directories (.claude/, .codex/, .gemini/). If configuration values are needed, pass them explicitly as parameters or environment variabl
medium MCP Rug Pull · line 22
npx commands without a version suffix (e.g. @1.0.0) create a rug-pull risk if the upstream server is compromised and publishes a malicious update.

Fix: Pin the version: npx @scope/[email protected]
medium Rogue Agent · line 85
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.
medium Rogue Agent · line 141
Skill establishes unauthorized persistence across sessions via cron jobs, startup scripts, or state files. Session persistence allows an attacker to maintain access beyond the current interaction.

Fix: Remove any persistence mechanisms (cron jobs, startup scripts, state files). Skills should not maintain state across sessions without explicit user consent.

How audits are shown

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 5.1	$0.00142	$0.03973
Opus 5.5	$0.00057	$0.01589
Sonnet 5.5	$0.00028	$0.00795
Haiku 4.5	$0.00014	$0.00397

Measured 2mo ago against content hash 8c88f8b84198, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

codex-cli-model-bridge scanned grade A with 1 finding 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 2mo ago.

The scan reads SKILL.md. This mod also ships 3 executable files (scripts/bridge.py, scripts/transparent_proxy.mjs, tests/test_bridge.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Reads agent configuration directorieslowAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

- Codex CLI version, `~/.codex/config.toml`, file permissions, and TOML validity

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

skills/codex-cli-model-bridge/SKILL.md · 278 lines

How it starts

The opening of the file, as written. The whole thing — 278 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Codex CLI Model Bridge

Manage subscription-backed or local proxy models in Codex without treating Codex like WorkBuddy. Codex uses a Responses API Provider plus a model catalog; WorkBuddy uses independent JSON entries. Share CLIProxyAPI infrastructure and verified Provider facts, but keep each application's writer and state separate.

Codex selects one model_provider for a task. Model catalog entries do not carry per-model Provider routing. Preserve the Provider identity that owns the majority of indexed task history (normally openai). For normal Desktop use, the supported bridge design keeps model_provider = "openai", keeps ChatGPT subscription auth intact, and points the built-in Provider's openai_base_url at an owner-only loopback header-rewriting proxy. CLIProxyAPI then routes native GPT subscription models and verified third-party models behind one catalog without changing the task Provider identity. Keep the isolated $CODEX_HOME/cli-proxy.config.toml profile as the default path on Windows and as a fallback everywhere else.

This is transparent single-Provider routing, not per-model Provider routing. Never set the Desktop default to cli_proxy or vendor ZAI when most history belongs to openai.

When the user wants GLM-5.3 from a Coding Plan key, read glm-coding-plan.md. If Desktop already uses Codex Router on port 4202, add zai-coding there and keep the OpenAI Provider identity. Do not run npx @z_ai/coding-helper.

On Windows, start with the isolated profile. Read windows.md. Do not require Homebrew, LaunchAgents, or Codex Router.

Resolve the Skill directory

Resolve this loaded Skill's directory as <skill-dir>. Resolve <python> as the first available of python3, py -3, and python. Use the deterministic entry point:

<python> <skill-dir>/scripts/bridge.py

Examples below use python3. Substitute <python> when that command is missing.

Default workflow

Read the full file on GitHub · 278 lines

Files

What ships with it

14 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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.

2mo ago Changed · +3 lines 8c88f8b84198
2mo ago First seen · 275 lines · 142 tokens per session scan A 0a6e1825ebcd

Subscribe to this mod's changes

codex-cli-model-bridge is a skill published in the GitHub repository zjp1997720/zhijian-skills (787 stars, last pushed 4d ago), licensed MIT. It adds 142 tokens to every session and 3,973 once invoked, about $0.0006 per session on Opus 5.5. A static security scan graded it A with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Building agents

codex-cli-model-bridge next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
codex-cli-model-bridgezjp1997720/zhijian-skills	Skill	787	4d ago	MIT	A	142	Codex
imagegenopenai/codex	Skill	133k	yesterday	Apache-2.0	A	113	Codex
playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	today	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	today	MIT	A	103	Claude Code

codex-cli-model-bridge