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MCP server · Blockchain

Claude Co Commands

by · github.com/SnakeO/claude-co-commands

Co-* planning, validation, and brainstorming commands for Claude Code via Codex MCP

Unclaimed MIT blockchain
InstallView source
52Fair

Scored 18 days ago · breakdown

About Claude Co Commands

Claude Co Commands is an MCP server published by SnakeO in the Blockchain category: co-* planning, validation, and brainstorming commands for Claude Code via Codex MCP.

The repository has 148 stars and 10 forks, with the last commit 23 days ago. Recent commit activity is the strongest signal that reported issues will get attention.

Install

From source
git clone https://github.com/SnakeO/claude-co-commands

This server has no ConduID identity, so agent calls to it are not receipted. Pin the version you install and review the source before granting it credentials.

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Security checks

Static checks derived from the repository 2 days ago. Heuristics on the source, not an audit.

  • ✓README presentThe repository ships documentation.
  • ✓License declaredUsable under a stated license.
  • !Tests presentNo tests found. Behaviour changes may go unnoticed between versions.
  • !Dependencies pinnedNo lockfile. Installs can pull different code over time.

2 checks have not been run yet.

README

Claude Co-Commands Plugin

3 collaboration commands for Claude Code that use the Codex CLI to generate parallel plans, validate plans, and brainstorm ideas.

Commands

Command Description When to Use
/co-brainstorm Bounce ideas off Codex Want fast alternative ideas, critiques, and perspectives
/co-plan Generate a parallel plan via Codex Want a second opinion on your planning approach
/co-validate Get a staff engineer review of your plan Want critical feedback before finalizing a plan

Prerequisites

  • Claude Code

  • The Codex CLI, signed in:

    npm install -g @openai/codex    # or: brew install codex
codex login

No MCP server is needed. The skills run Codex through a small helper, scripts/codex-session, which drives codex exec in Codex's read-only sandbox and keeps each conversation in a temporary folder so follow-ups continue the same Codex session. A background subagent starts Codex and answers any clarifying questions it asks, while Claude does its own independent work.

Installation

Option 1: Plugin Marketplace (Recommended)

# Add the marketplace
/plugin marketplace add SnakeO/claude-co-commands

# Install the plugin
/plugin install co-commands@snakeo-co-commands

Option 2: Git Clone

git clone https://github.com/SnakeO/claude-co-commands.git
# Copy skill folders to ~/.claude/skills/
cp -r claude-co-commands/plugins/co-commands/skills/* ~/.claude/skills/

Option 3: Manual Copy

Copy plugins/co-commands/skills/ contents to ~/.claude/skills/.

Upgrading from 1.x

Versions 1.x used the Codex MCP server (codex mcp-server). OpenAI removed that command in Codex 0.154.0, so the server now exits at startup and Claude Code reports validate-plans-and-brainstorm-ideas ... Connection closed. Version 2.0 does not use it. Remove the old server entry from wherever you added it:

claude mcp remove validate-plans-and-brainstorm-ideas -s user      # ~/.claude.json
claude mcp remove validate-plans-and-brainstorm-ideas -s project   # a project's .mcp.json

Verify

  1. Run codex login status; it should say you are logged in.
  2. Restart Claude Code after updating the plugin.
  3. Test with /co-brainstorm test idea. It should spawn a background subagent that runs codex-session run.

Command Details

/co-brainstorm

Starts an interactive brainstorming session with Codex. Pass your topic or question as the argument.

/co-brainstorm how should we structure the authentication system

Supports follow-up conversation to dig deeper into ideas.

/co-plan

Generates an alternative plan in the background while you continue your own planning. Pass your task description as the argument.

/co-plan add user authentication with OAuth2 support

Compare the Codex plan against yours to catch missed approaches, simpler alternatives, or overlooked edge cases.

/co-validate

Sends your plan to Codex for a staff-engineer-style review. Pass the path to your plan file.

/co-validate .claude/plans/my-plan.md

Returns critical issues, simplification opportunities, and alternative approaches. Supports back-and-forth discussion.

Troubleshooting

Problem Solution
the Codex CLI is not installed npm install -g @openai/codex (or brew install codex), then codex login
Codex did not reply Read the lines it prints from stderr.log. For auth errors run codex login in a terminal
validate-plans-and-brainstorm-ideas ... Connection closed at startup A leftover 1.x MCP server entry. Remove it (see Upgrading from 1.x)
Commands not appearing after install Restart Claude Code and verify the skill folders exist

License

MIT

README fetched from the repository 2 days ago. The original is authoritative.

Questions

About Claude Co Commands

How do I install Claude Co Commands?

No package has been published for this server, so install it from source: clone the repository and follow its README.

Is Claude Co Commands safe to use with an AI agent?

Its trust score is 52 out of 100 (fair). It passes 2 of the 4 static security checks run so far; the failures are listed above. It has no ConduID identity yet, so agent calls to it are not receipted.

Is Claude Co Commands still maintained?

Yes — the last commit was 23 days ago. The repository has 148 stars and 10 forks and 1 open issues.