Install Sub Agents in Claude Code

What you need first

• Claude Code, installed.
• Node.js, which gives the npx command the server starts with.
• Your own values for YOUR_AGENTS_DIR,YOUR_AGENT_TYPE.

Steps

1. Run this in a terminal, in the project folder. It adds the server for you in that project; put --scope user after claude mcp add to have it in every project.

claude mcp add --env AGENTS_DIR=YOUR_AGENTS_DIR --env AGENT_TYPE=YOUR_AGENT_TYPE --transport stdio sub-agents-mcp -- npx -y [email protected]

2. Replace YOUR_AGENTS_DIR,YOUR_AGENT_TYPE with your own values.
3. Start Claude Code and type /mcp: the server is listed with its state.

Check it worked

Ask Claude Code: List the tools of sub-agents-mcp.

If it does not start

spawn npx ENOENT

Node.js is not on the PATH that Claude Code sees. Install it, or write the full path of npx in the config.

The server starts, but its tools fail

A YOUR_… placeholder is still in the config, or its value is wrong.