AI Validation MCP Server

Independent AI code validation service — analyzes your tests for bias, missing edge cases, and coverage gaps. Works as an MCP server for AI coding agents and IDEs.

Why

AI-generated code increases production incidents 43% YoY. General-purpose assistants generate tests as a side effect, not as a core function. This server provides specialized, independent validation — a second opinion on your test quality.

Installation

npm install ai-validation-mcp

MCP Configuration

Add to your MCP client config (e.g. claude_desktop_config.json):

{
  "mcpServers": {
    "ai-validation": {
      "command": "npx",
      "args": ["-y", "ai-validation-mcp"],
      "env": {
        "ANTHROPIC_API_KEY": "your-key-here"
      }
    }
  }
}

Requires an Anthropic API key for analysis.

Tools

validate_tests

Analyze existing tests for bias, missing edge cases, and quality issues.

| Parameter | Type | Required | Description | |------------|--------|----------|--------------------------------------| | sourceCode | string | Yes | The source code to validate against | | testCode | string | Yes | The existing test code to analyze | | language | string | No | Programming language (default: typescript) |

Returns: bias warnings, missing edge case suggestions, overall quality score.

suggest_edge_cases

Suggest comprehensive edge cases for a given function.

| Parameter | Type | Required | Description | |------------|--------|----------|--------------------------------------| | sourceCode | string | Yes | The source code to analyze | | language | string | No | Programming language (default: typescript) |

Returns: categorized edge cases (happy path, error handling, boundary, type coercion, integration).

coverage_gap_analysis

Identify untested code paths, branches, and logic gaps.

| Parameter | Type | Required | Description | |------------|--------|----------|--------------------------------------| | sourceCode | string | Yes | The source code to analyze | | testCode | string | Yes | The existing test code to evaluate | | language | string | No | Programming language (default: typescript) |

Returns: coverage score, gap details, suggested tests to close gaps.

Modes

• --cached (default) — Uses saved responses from ./fixtures/. No API calls.
• --live — Real Anthropic API calls. Overwrites fixtures.

Development

npm install
npm run build
npm test

License

MIT