TurnSignal MCP

An official MCP server provided by TurnSignal that allows coding agents to read Playwright CI test results, including new vs known failures, flaky test history, and missing results due to crashes, enabling agents to triage test outcomes and review test changes.

Visit TurnSignal

Package and access

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

Vendor evidenceLocal stdioSource reviewed; not executedOperated by TurnSignal

You need:Sign in, create a project and copy its token from the setup page.Install the reporter npm i -D turnsignal

Vendor documentation

What you can do with it

Identify new test failures caused by recent code changes
Review flaky test history and evidence
Check for missing test results from crashed CI shards
Review AI-written test changes in pull requests

Source and maintenance

Vendor evidenceRegistry 0.6.6

mcp-registry: ai.turnsignal/turnsignal@0.6.6 Project website

Packages and installation

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

turnsignal 0.6.6

npm

turnsignal package definition

{
  "version": "0.6.6",
  "transport": "stdio",
  "identifier": "turnsignal",
  "registryType": "npm",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ],
  "environmentVariables": [
    {
      "name": "TURNSIGNAL_TOKEN",
      "format": "string",
      "isRequired": true,
      "description": "Project token from app.turnsignal.ai (read-only use)"
    },
    {
      "name": "TURNSIGNAL_API_URL",
      "format": "string",
      "description": "Only for a self-hosted server (default https://app.turnsignal.ai)"
    }
  ]
}

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": {
    "turnsignal-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "turnsignal@0.6.6",
        "mcp"
      ],
      "env": {
        "TURNSIGNAL_TOKEN": "<YOUR_TURNSIGNAL_TOKEN>",
        "TURNSIGNAL_API_URL": "<YOUR_TURNSIGNAL_API_URL>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "turnsignal-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "turnsignal@0.6.6",
        "mcp"
      ],
      "env": {
        "TURNSIGNAL_TOKEN": "<YOUR_TURNSIGNAL_TOKEN>",
        "TURNSIGNAL_API_URL": "<YOUR_TURNSIGNAL_API_URL>"
      }
    }
  }
}

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": {
    "turnsignal-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "turnsignal@0.6.6",
        "mcp"
      ],
      "env": {
        "TURNSIGNAL_TOKEN": "<YOUR_TURNSIGNAL_TOKEN>",
        "TURNSIGNAL_API_URL": "<YOUR_TURNSIGNAL_API_URL>"
      }
    }
  }
}

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": {
    "turnsignal-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "turnsignal@0.6.6",
        "mcp"
      ],
      "env": {
        "TURNSIGNAL_TOKEN": "<YOUR_TURNSIGNAL_TOKEN>",
        "TURNSIGNAL_API_URL": "<YOUR_TURNSIGNAL_API_URL>"
      }
    }
  }
}

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