Mailtrap Email Sending

# AGENT.md ## Build/Lint/Test Commands - `npm run build` - Compile TypeScript to dist/ - `npm run lint` - Run ESLint and TypeScript checks - `npm test` - Run all Jest tests - `npm run test:watch` - Run tests in watch mode - `jest src/tools/sendEmail/__tests__/sendEmail.test.ts` - Run single test file - `npm run dev` - Run MCP server with inspector for testing ## Architecture - MCP (Model Context Protocol) server integrating with Mailtrap email service - Main entry point: `src/index.ts` registers tools and handles server lifecycle - Tools located in `src/tools/` with pattern: each tool has subdirectory with index.ts, schema.ts, implementation.ts, and __tests__/ - Client configuration: `src/client.ts` handles Mailtrap API initialization - Configuration: `src/config/index.ts` for server constants ## Code Style - Uses Airbnb TypeScript ESLint config with Prettier - TypeScript strict mode enabled, targeting ES2022 with CommonJS - Zod schemas for all tool input validation - Error handling: catch and re-throw with descriptive messages - Import style: ES modules syntax, grouped with external first - Naming: camelCase for functions/variables, PascalCase for types/interfaces - No console.log allowed in production code (use proper error handling)