Koskamo

FailTrace MCP

FailTrace is a community-developed MCP server and CLI tool designed to help coding agents reproduce, isolate, and minimize software failures. It captures failing baselines, minimizes inputs, and verifies proposed fixes against those baselines, providing evidence for agents to inspect before accepting patches. It supports local execution without external AI APIs or accounts.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

FailTrace MCP logo, by LBarimiCommunity listingLocal stdioSource reviewed; not executedPublished by LBarimi
You need:Local execution. No AI API, account, or telemetry required.
Vendor documentation

What you can do with it

  • Capture test failures before editing code
  • Minimize failing test inputs to isolate bugs
  • Verify proposed code fixes against saved baselines
  • Replay and inspect failure evidence for agents

Source and maintenance

Community listingRegistry 1.5.0
mcp-registry: io.github.LBarimi/failtrace@1.5.0Source repositoryProject website
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

failtrace 1.5.0

npmnpx
failtrace package definition
{
  "version": "1.5.0",
  "transport": "stdio",
  "identifier": "failtrace",
  "runtimeHint": "npx",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    },
    {
      "name": "--cwd",
      "type": "named",
      "format": "filepath",
      "isRequired": true,
      "description": "Absolute path to the project being investigated"
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "failtrace-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "failtrace@1.5.0",
        "mcp"
      ]
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "failtrace-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "failtrace@1.5.0",
        "mcp"
      ]
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "failtrace-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "failtrace@1.5.0",
        "mcp"
      ]
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "failtrace-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "failtrace@1.5.0",
        "mcp"
      ]
    }
  }
}

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