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Cover image for Announcing stryker-mcp-reporter v1.8.2: 100% Mutation Score & Native MCP for AI Coding Agents
Matthias Kluth
Matthias Kluth

Posted on • Originally published at github.com

Announcing stryker-mcp-reporter v1.8.2: 100% Mutation Score & Native MCP for AI Coding Agents

#typescript #testing #mcp #ai

Standard code coverage measures execution, not test strength. AI coding assistants generate hundreds of lines of unit tests, but often fall into the "happy path bias".

With stryker-mcp-reporter v1.8.2, AI pair programmers (Antigravity, Cursor, Claude Desktop, Roo Code, Cline) can autonomously execute mutation tests, inspect survived mutants via Model Context Protocol (MCP), write exact edge-case tests, and achieve a verified 100% Mutation Score.

🌟 What's New in v1.8.2

Bug Fixes

  • announcements: correct Hashnode PublishPostTagInput schema and log raw API responses (3305c2f)

📸 Real Runtime Proof

Below are unedited runtime screenshots captured directly from active test executions:

Mutation Testing Report

Mutant In-Line Code Diff

âš¡ How to Connect to Your AI Tool

Add this single JSON block to your MCP config:

{
  "mcpServers": {
    "stryker-mutation-testing": {
      "command": "npx",
      "args": ["-y", "--silent", "stryker-mcp-reporter"]
    }
  }
}
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(Windows users: Use "command": "cmd.exe" with "args": ["/c", "npx", "-y", "--silent", "stryker-mcp-reporter"]).

Check out the full open-source project on GitHub: https://github.com/kluth/stryker-mcp-reporter

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