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MCP Failure Lab

io.github.cloudlabworks/mcp-failure-lab · version 0.1.2

Community listing. Not installed or verified by cosmic-mcp. Read the source and its permissions before you run it.

Deliberately faulty MCP server for testing how agent clients handle tool errors and disconnects.

https://github.com/cloudlabworks/mcp-failure-lab

Quick facts

  • Listing: Community
  • Published Nov 3, 00:28 UTC
  • Transport: stdio
  • Package: oci ghcr.io/cloudlabworks/mcp-failure-lab:0.1.2
  • Listed by cosmic-mcp: Nov 9, 04:25 UTC

Testing and QA

Setup snippets

Generated from the registry entry. cosmic-mcp has not run or reviewed this server; values in angle brackets are yours to fill in.

Run it locally (oci)

docker run -i --rm -e 'LAB_DELAY_MS' -e 'LAB_FAILURES' -e 'LAB_SCENARIO' 'ghcr.io/cloudlabworks/mcp-failure-lab:0.1.2'

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "mcp-failure-lab": {
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "LAB_DELAY_MS",
        "-e",
        "LAB_FAILURES",
        "-e",
        "LAB_SCENARIO",
        "ghcr.io/cloudlabworks/mcp-failure-lab:0.1.2"
      ],
      "command": "docker",
      "env": {
        "LAB_DELAY_MS": "<your lab delay ms>",
        "LAB_FAILURES": "<your lab failures>",
        "LAB_SCENARIO": "<your lab scenario>"
      }
    }
  }
}

Claude Code

claude mcp add 'mcp-failure-lab' -- docker run -i --rm -e 'LAB_DELAY_MS' -e 'LAB_FAILURES' -e 'LAB_SCENARIO' 'ghcr.io/cloudlabworks/mcp-failure-lab:0.1.2'

Cursor (.cursor/mcp.json)

{
  "mcpServers": {
    "mcp-failure-lab": {
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "LAB_DELAY_MS",
        "-e",
        "LAB_FAILURES",
        "-e",
        "LAB_SCENARIO",
        "ghcr.io/cloudlabworks/mcp-failure-lab:0.1.2"
      ],
      "command": "docker",
      "env": {
        "LAB_DELAY_MS": "<your lab delay ms>",
        "LAB_FAILURES": "<your lab failures>",
        "LAB_SCENARIO": "<your lab scenario>"
      }
    }
  }
}

VS Code (.vscode/mcp.json)

{
  "servers": {
    "mcp-failure-lab": {
      "args": [
        "run",
        "-i",
        "--rm",
        "-e",
        "LAB_DELAY_MS",
        "-e",
        "LAB_FAILURES",
        "-e",
        "LAB_SCENARIO",
        "ghcr.io/cloudlabworks/mcp-failure-lab:0.1.2"
      ],
      "command": "docker",
      "env": {
        "LAB_DELAY_MS": "<your lab delay ms>",
        "LAB_FAILURES": "<your lab failures>",
        "LAB_SCENARIO": "<your lab scenario>"
      },
      "type": "stdio"
    }
  }
}

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