Codex Multi-Model Workers

Chinese documentation

A distributable Codex plugin that connects Codex to local and cloud language models through a controlled MCP worker boundary.

Supported providers:

• MoE4All local GGUF servers

• GLM official cloud API and custom compatible endpoints

• DeepSeek official cloud API and custom compatible endpoints

• Generic OpenAI-compatible Chat Completions endpoints

Codex remains the controller. Workers return analysis, implementation proposals, or patch text and never receive direct write authority over the main working tree.

Requirements

• A Codex build with plugin marketplace support

• Node.js 20 or newer available as node

• Provider credentials in environment variables when cloud APIs are used

• MoE4All and a GGUF model already downloaded when local inference is used

The committed MCP bundle is self-contained. End users do not run npm install.

Related MCP server: Brooks Model MCP

Install

Add this Git repository as a Codex marketplace:

codex plugin marketplace add aaa17001/codex-multi-model-workers

Install the plugin:

codex plugin add codex-multi-model-workers@multi-model-workers

Start a new Codex task so the Skill and MCP tools are discovered. Invoke the Skill as $multi-model-workers in CLI/IDE environments or @multi-model-workers where the Codex app exposes Skills with @.

Secrets

Set API keys in the environment that launches Codex. Do not put key values in provider JSON, prompts, repository files, or VS Code configuration.

PowerShell current session:

$env:GLM_API_KEY = 'your-key'
$env:DEEPSEEK_API_KEY = 'your-key'
$env:MOE4ALL_API_KEY = 'your-optional-local-key'

Bash current session:

export GLM_API_KEY='your-key'
export DEEPSEEK_API_KEY='your-key'
export MOE4ALL_API_KEY='your-optional-local-key'

GLM also recognizes ZAI_API_KEY when the configured name is GLM_API_KEY and that variable is absent.

The plugin MCP explicitly forwards these variable names from Codex: GLM_API_KEY, ZAI_API_KEY, DEEPSEEK_API_KEY, MOE4ALL_API_KEY, OPENAI_API_KEY, TEAM_GLM_API_KEY, TEAM_DEEPSEEK_API_KEY, and TEAM_MODEL_API_KEY. Set apiKeyEnv to one of these names. Values are never stored in the plugin manifest.

Configure Providers

Ask the Skill to configure only the provider you need:

Use $multi-model-workers to configure the official DeepSeek API with model deepseek-chat.

Use $multi-model-workers to configure a custom GLM-compatible endpoint at https://gateway.example.com/glm/v1.

Configuration tools accept apiKeyEnv, which is an environment variable name. They reject literal apiKey, token, secret, and password fields.

Default non-secret configuration locations:

• Windows: %APPDATA%\codex-multi-model-workers\config.json

• macOS/Linux: ${XDG_CONFIG_HOME:-~/.config}/codex-multi-model-workers/config.json

• Override: CODEX_MULTI_MODEL_CONFIG

See providers.example.json and the Provider reference.

MoE4All

MoE4All paths are machine-specific and are never hard-coded by the plugin. Configure absolute paths, loopback host, port, and the model id exposed by the server:

Use $multi-model-workers to configure MoE4All with infr.exe at D:\Tools\MoE4All\infr.exe and model D:\Models\model.gguf. Bind 127.0.0.1:8080 and enable --think.

Then ask the Skill to start the configured provider. The plugin:

• refuses non-loopback managed launches

• passes arguments without a shell

• keeps the API key out of process arguments

• records the owned PID only after /health succeeds

• refuses to stop a PID whose command line no longer matches both configured paths

The plugin does not download MoE4All or GGUF files.

Route And Ask Workers

Use $multi-model-workers to recommend a worker for scanning this repository.

route_task is advisory and sends no task content. After reviewing the recommendation, ask the selected worker explicitly:

Use $multi-model-workers to ask local-moe to analyze this log. Do not modify files.

High-risk, architecture, security, cross-module, and final-review work remains with Codex.

VS Code

After configuring providers:

Use $multi-model-workers to add local-moe, glm, and deepseek to my VS Code language models.

The plugin merges provider groups into chatLanguageModels.json, preserves unrelated groups, and creates a timestamped backup. Generated entries use explicit Chat Completions URLs and VS Code ${input:...} secret references.

VS Code is only an API client. Its model configuration does not start infr.exe or load a GGUF model.

Tools

Development

npm ci --prefix plugins/codex-multi-model-workers/mcp
npm test

npm test rebuilds the committed self-contained MCP bundle and runs the full test suite, including a stdio acceptance test from an isolated directory with no node_modules.

See CONTRIBUTING.md, SECURITY.md, and the design.

License

MIT