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Technology Stack

Complete overview of technologies used in documcp MCP server.

Core Technologies​

Runtime & Language​

  • Node.js 20+: JavaScript runtime environment
  • TypeScript 5.3+: Primary development language with strict type safety
  • ES Modules: Modern module system for clean imports/exports

MCP Foundation​

  • @modelcontextprotocol/sdk: Official MCP TypeScript SDK for protocol implementation
  • JSON-RPC 2.0: Communication protocol for MCP tool calls
  • Zod: Runtime type validation and schema definition
  • zod-to-json-schema: Automatic JSON schema generation from Zod types

Development Tools​

Build & Compilation​

  • TypeScript Compiler (tsc): Direct TypeScript to JavaScript compilation
  • tsx: TypeScript execution and hot reloading for development
  • ES2022 Target: Modern JavaScript features with broad compatibility

Code Quality​

  • ESLint: TypeScript-aware linting with strict rules
  • Prettier: Consistent code formatting
  • @typescript-eslint/parser: TypeScript AST parsing for ESLint
  • @typescript-eslint/eslint-plugin: TypeScript-specific linting rules

Testing Framework​

  • Jest 29+: Primary testing framework
  • ts-jest: TypeScript integration for Jest
  • @types/jest: TypeScript definitions for Jest APIs
  • Coverage reporting: Built-in Jest coverage analysis

Infrastructure​

Version Control & CI/CD​

  • Git: Source control with conventional commits
  • GitHub: Repository hosting and collaboration
  • GitHub Actions: Automated testing and deployment pipelines

Package Management​

  • npm: Package management with lock file for reproducible builds
  • Node 20+ engines: Enforced minimum Node.js version requirement

Core Dependencies​

Production Dependencies​

{
  "@modelcontextprotocol/sdk": "^0.6.0",
  "zod": "^3.22.4", 
  "zod-to-json-schema": "^3.24.6"
}

Development Dependencies​

{
  "@types/jest": "^29.5.11",
  "@types/node": "^20.11.0",
  "@typescript-eslint/eslint-plugin": "^6.19.0",
  "@typescript-eslint/parser": "^6.19.0",
  "eslint": "^8.56.0",
  "jest": "^29.7.0",
  "prettier": "^3.2.4",
  "ts-jest": "^29.1.1",
  "tsx": "^4.7.0",
  "typescript": "^5.3.3"
}

MCP Architecture Technologies​

Tool Implementation​

  • Zod Schemas: Runtime parameter validation for all MCP tools
  • TypeScript Interfaces: Compile-time type safety for tool responses
  • JSON Schema Generation: Automatic schema creation for MCP tool definitions
  • Error Handling: Structured error responses with actionable guidance

Resource Management​

  • File System Operations: Direct filesystem access for repository analysis
  • Stream Processing: Memory-efficient handling of large files
  • Async/Await: Modern asynchronous programming patterns

Static Site Generator Integration​

Supported SSGs​

  • Jekyll: Ruby-based, GitHub Pages native
  • Hugo: Go-based, extremely fast builds
  • Docusaurus: React-based, feature-rich documentation
  • MkDocs: Python-based, clean and simple
  • Eleventy: JavaScript-based, flexible templating

Template Systems​

  • YAML Configuration: SSG configuration file generation
  • Markdown Content: Documentation content creation
  • GitHub Actions Workflows: Automated deployment pipeline generation

Development Environment​

  • VS Code: Primary IDE with TypeScript support
  • Node Version Manager (nvm): Node.js version management
  • GitHub CLI: Repository and workflow management

Essential VS Code Extensions​

  • TypeScript and JavaScript Language Features: Built-in TypeScript support
  • ESLint: Real-time linting feedback
  • Prettier: Automatic code formatting
  • Jest: Test runner integration

Development Scripts​

{
  "dev": "tsx watch src/index.ts",
  "build": "tsc",
  "test": "jest",
  "test:coverage": "jest --coverage",
  "lint": "eslint . --ext .ts",
  "typecheck": "tsc --noEmit"
}

Security & Quality​

Type Safety​

  • Strict TypeScript: Enabled strict mode for maximum type safety
  • Runtime Validation: Zod schemas validate all external inputs
  • No any Types: Explicit typing throughout codebase

Dependency Security​

  • npm audit: Regular dependency vulnerability scanning
  • Minimal Dependencies: Small, focused dependency tree
  • Trusted Sources: Only well-maintained, popular packages

Code Quality​

  • 100% TypeScript: No JavaScript files in source code
  • Comprehensive Testing: Unit tests for all core functionality
  • Linting Rules: Strict ESLint configuration with TypeScript rules

Performance Considerations​

Memory Efficiency​

  • Streaming Processing: Large file handling without memory bloat
  • Lazy Loading: On-demand module loading
  • Garbage Collection: Proper cleanup of temporary objects

Build Performance​

  • Incremental Compilation: TypeScript incremental builds
  • Fast Test Execution: Jest with optimized configuration
  • Parallel Processing: Multi-core utilization where possible

Future Technology Considerations​

MCP Protocol Evolution​

  • Protocol Updates: Ready for MCP specification changes
  • SDK Upgrades: Tracking @modelcontextprotocol/sdk releases
  • Backward Compatibility: Maintaining compatibility with existing clients

Performance Enhancements​

  • WebAssembly: Potential for compute-intensive operations
  • Worker Threads: Parallel processing for large repositories
  • Caching Strategies: Intelligent result caching and reuse