Add comprehensive MCP server implementation with testing

- Implement complete MCP server in eng/mcp-server/ with TypeScript
- Add 54 comprehensive tests achieving 96.15% statement coverage
- Add MCP testing scripts to root package.json (test:mcp, test:mcp:coverage, test:mcp:watch)
- Update .gitignore with comprehensive patterns for Node.js projects
- Update AGENTS.md with MCP testing requirements in pre-commit checklist
- Fix line endings to LF (Unix-style) for all markdown files
- All collection validations pass (30/30)

Author: RbBtSn0w

.gitignore

@@ -1,7 +1,113 @@
-node_modules
-*.orig
-Copilot-Processing.md
+# Dependencies
+node_modules/
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+
+# Build outputs
+dist/
+build/
+*.tsbuildinfo
+
+# Test coverage
+coverage/
+.nyc_output/
+
+# Environment variables
+.env
+.env.local
+.env.development.local
+.env.test.local
+.env.production.local
+
+# Logs
+logs/
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Runtime data
+pids/
+*.pid
+*.seed
+*.pid.lock
+
+# Coverage directory used by tools like istanbul
+lib-cov/
+
+# nyc test coverage
+.nyc_output/
+
+# Dependency directories
+jspm_packages/
+
+# Optional npm cache directory
+.npm
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env.test
 
-# macOS system files
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# next.js build output
+.next
+
+# nuxt.js build output
+.nuxt
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# OS generated files
 .DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db
+
+# IDE files
+.vscode/settings.json
+.idea/
+*.swp
+*.swo
+*~
+
+# Temporary files
 *.tmp
+*.temp
+*.orig
+Copilot-Processing.md
+
+# Lock files (optional - some teams prefer to commit these)
+# package-lock.json
+# yarn.lock

AGENTS.md

@@ -80,6 +80,12 @@ npm run collection:validate
 # Build and verify README generation
 npm run build
 
+# Test MCP server functionality
+npm run test:mcp
+
+# Test MCP server with coverage report
+npm run test:mcp:coverage
+
 # Fix line endings (required before committing)
 bash scripts/fix-line-endings.sh
 ```
@@ -121,6 +127,7 @@ When creating a pull request:
 Before submitting your PR, ensure you have:
 - [ ] Run `npm install` (or `npm ci`) to install dependencies
 - [ ] Run `npm run build` to generate the updated README.md
+- [ ] Run `npm run test:mcp` to verify MCP server tests pass
 - [ ] Run `bash scripts/fix-line-endings.sh` to normalize line endings
 - [ ] Verified that all new files have proper front matter
 - [ ] Tested that your contribution works with GitHub Copilot

eng/mcp-server/jest.config.js

@@ -0,0 +1,32 @@
+/** @type {import('jest').Config} */
+module.exports = {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  roots: ['<rootDir>/src', '<rootDir>/tests'],
+  testMatch: ['**/__tests__/**/*.test.ts', '**/?(*.)+(spec|test).ts'],
+  transform: {
+    '^.+\\.ts$': ['ts-jest', {
+      tsconfig: 'tsconfig.json',
+    }],
+  },
+  moduleNameMapper: {
+    '^\\.\\./src/(.*)$': '<rootDir>/src/$1',
+  },
+  collectCoverageFrom: [
+    'src/**/*.ts',
+    '!src/**/*.d.ts',
+    '!src/index.ts', // Main entry point, tested via integration tests
+  ],
+  coverageDirectory: 'coverage',
+  coverageReporters: ['text', 'lcov', 'html'],
+  coverageThreshold: {
+    global: {
+      branches: 80,
+      functions: 80,
+      lines: 80,
+      statements: 80,
+    },
+  },
+  setupFilesAfterEnv: ['<rootDir>/tests/setup.ts'],
+  testTimeout: 10000,
+};

eng/mcp-server/mcp-config.json

@@ -0,0 +1 @@
+{"mcp": {"command": "node", "args": ["dist/index.js"]}}