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Codon MCP

Your coding agents need a shared plan.

Codon coordinates Codex, Claude Code, and the other coding agents already on your machine. One board. Clear ownership. A review gate before the work is done.

Install freeGet Gattaca Plus

Node.js 20+ · local-first · 7 tools free · no account required

codon · agents_detect

2 available local coding agents

Claude Code

claude
Pro subscription

Codex

codex
Plus subscription

Mission ready

6 ordered tasks across Scout, Builder, and Reviewer roles.

01

Detect

Find the coding CLIs and subscriptions already available locally.

02

Plan

Break a mission into Builder, Scout, and Reviewer work.

03

Dispatch

Put every assignment on one project-local task board.

04

Review

Check completed work before a task is allowed to close.

Install

Running in a few minutes.

Codon is a small stdio MCP server. Your client starts it when a chat needs it; there is no daemon to manage.

Codex · Windows

Add an MCP server

Tested
  1. 1. Open Settings → MCP servers → Add server.
  2. 2. Name it codon.
  3. 3. Enter the command and arguments below.
  4. 4. Restart Codex, open a new chat, then enter /mcp.
Command:   cmd
Arguments: /c npx -y codon-mcp

Verified with GPT-5.6 Sol. If another model does not expose local MCP tools, switch to a Codex model and start a new chat.

Claude Code

Add from your terminal

Run this in the project you want Codon to coordinate:

claude mcp add codon -- cmd /c npx -y codon-mcp

macOS or Linux:

claude mcp add codon -- npx -y codon-mcp

Use --scope user before -- to make it available across projects.

Any MCP client

Use standard JSON configuration

Save this in the client's local MCP configuration. On macOS or Linux, use npx directly.

{
  "mcpServers": {
    "codon": {
      "command": "cmd",
      "args": ["/c", "npx", "-y", "codon-mcp"]
    }
  }
}

Tools

Start free. Add orchestration when you need it.

Codon Core

7 tools, free

No account
  • codon_agents_detect

    See which coding agents are ready on your machine.

  • codon_board_list

    Read the shared project task board.

  • codon_board_upsert

    Create tasks and keep their state current.

  • codon_board_claim

    Claim work without agents colliding.

  • codon_status_board

    Share status across active agents.

  • codon_usage_report

    Summarize local Claude Code and Codex usage.

  • codon_coordinator_suggest

    Choose a cost-effective model for the job.

Gattaca Plus

3 orchestration tools

$15/month
  • codon_mission_decompose

    Turn one mission into ordered, assigned tasks.

  • codon_mission_dispatch

    Write the complete task batch to the board.

  • codon_swarm_review

    Gate finished work against the real workspace.

Get Gattaca Plus

Real output

One mission becomes work agents can actually pick up.

This six-task plan came from a live Codon MCP call in Codex. Models were matched to the role and priority of each task.

Mission decomposition6 tasks
01

Locate and read the README

haiku

Scoutcritical
02

Gather common failure modes

codex:gpt-5.6-luna

Scouthigh
03

Draft the troubleshooting content

sonnet

Builderhigh
04

Insert the section into the README

codex:gpt-5.6-terra

Builderhigh
05

Verify commands and accuracy

opus

Reviewermedium
06

Final polish pass

codex:gpt-5.6-sol

Reviewerlow

Local-first by design

The board, agent status, usage records, and provider credentials stay on your machine.

Codon works with the coding accounts and project files you already control. It does not proxy model requests or upload provider credentials. Planning and review run through your locally installed, signed-in Claude Code CLI.

Plus checks send only your Gattaca API key to the license endpoint. Project data is not included, and successful checks are cached for up to five minutes.

Ready when your agents are

Give every agent the same map.

Install Codon free, detect what is already available, and add Gattaca Plus when you want mission planning and review.

Install Codon MCPOpen your account