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Agent Harness

MCP server · by cuonztech

AI Agents npm v0.5.2

MCP chaos-testing toolkit. Default: simulated demo. Configure proxy mode to test a real agent.

View source ↗ More servers

Install

Run one of the commands below, then add the client config underneath.

npmnpx -y cuonztech-agent-harness

Client configuration

Paste into Claude Desktop, Cursor (mcp.json), VS Code or any MCP client, then restart the client.

mcpServers{
  "mcpServers": {
    "agent-harness": {
      "command": "npx",
      "args": [
        "-y",
        "cuonztech-agent-harness"
      ]
    }
  }
}

About this server

Agent Harness is listed in the AI Agents category of the MCPNav directory. It is distributed as npm and can be loaded by any client that speaks the Model Context Protocol.

Typical uses include giving your assistant scoped access to the corresponding service so it can answer questions and take actions with real data instead of guessing. Always review what a server can access before you enable it — see our MCP security guide.

Frequently asked questions

What is the Agent Harness MCP server?

Agent Harness is an MCP server by cuonztech. MCP chaos-testing toolkit. Default: simulated demo. Configure proxy mode to test a real agent.

How do I install Agent Harness?

Install it with: npx -y cuonztech-agent-harness. Then add the JSON config to your client's MCP settings and restart the client.

Is Agent Harness free to use?

The MCP server itself is free to install. The source is public on https://github.com/cuonztech/agent-harness. Any third-party API it calls (such as a search or maps API) may require its own key and billing.

Which clients support Agent Harness?

Any MCP-compatible client can use it, including Claude Desktop, Cursor, VS Code, Windsurf and custom agents.