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Found 352 Skills
Use when adding Auth0 token validation to Express or Node.js APIs - integrates express-oauth2-jwt-bearer SDK to protect Node.js API endpoints with JWT Bearer authentication, scope-based RBAC, claim validation, and optional DPoP support
Comprehensive backend development guide for Node.js/Express/TypeScript microservices. Use when creating routes, controllers, services, repositories, middleware, or working with Express APIs, Prisma database access, Sentry error tracking, Zod validation, unifiedConfig, dependency injection, or async patterns. Covers layered architecture (routes → controllers → services → repositories), BaseController pattern, error handling, performance monitoring, testing strategies, and migration from legacy patterns.
MCP server implementation with Express.js and TypeScript.
Express.js framework patterns including routing, middleware, request/response handling, and Express-specific APIs. Use when working with Express routes, middleware, or Express applications.
Ultimate 25+ years expert-level backend skill covering FastAPI, Express, Node.js, Next.js with TypeScript. Includes ALL databases (PostgreSQL, MongoDB, Redis, Elasticsearch), ALL features (REST, GraphQL, WebSockets, gRPC, Message Queues), comprehensive security hardening (XSS, CSRF, SQL injection, authentication, authorization, rate limiting), complete performance optimization (caching, database tuning, load balancing), ALL deployment strategies (Docker, Kubernetes, CI/CD), advanced patterns (microservices, event-driven, saga, CQRS), ALL use cases (e-commerce, SaaS, real-time, high-traffic), complete testing (unit, integration, E2E, load, security). Route protection, middleware, authentication implementation in PERFECTION. Use for ANY backend system requiring enterprise-grade security, performance, scalability, and architectural excellence.
Verify and handle webhooks delivered through the Hookdeck Event Gateway. Use when receiving webhooks via Hookdeck and need to verify the x-hookdeck-signature header. Covers signature verification for Express, Next.js, and FastAPI.
Refactor Express.js/Node.js code to improve maintainability, readability, and adherence to best practices. Transforms callback hell, fat route handlers, and outdated patterns into clean, modern JavaScript/TypeScript code. Applies async/await, controller-service-repository architecture, proper middleware patterns, and ESM modules. Identifies and fixes anti-patterns including blocking event loop, improper error handling, forEach with async callbacks, and memory leaks.
Debug Express.js and Node.js applications with systematic diagnostic techniques. This skill provides comprehensive guidance for troubleshooting middleware execution issues, routing problems, CORS errors, async error handling, memory leaks, and unhandled promise rejections. Covers DEBUG environment variable usage, Node Inspector with Chrome DevTools, VS Code debugging, Morgan request logging, and diagnostic middleware patterns. Includes four-phase debugging methodology and common error message reference.
Helps users discover and install agent skills when they ask questions like "how do I do X", "find a skill for X", "is there a skill that can...", or express interest in extending capabilities. This skill should be used when the user is looking for functionality that might exist as an installable skill.
Feishu Miaoda Apps (lark-cli apps): Deploy local HTML files or directories as accessible, shareable Miaoda apps (static websites / web pages) and return access URLs; it also provides management capabilities such as app creation, update, listing, and setting access scopes (specific for designated visibility / public for open internet access / tenant for all enterprise members). Use this when users say phrases like 'Develop PPT / slides / presentations / demoable demos with HTML / web pages', 'Deploy / publish HTML / static websites / web pages / dist directories', 'Deploy HTML files in /xxx to Miaoda using lark-cli', 'Develop xxx and deploy it as a shareable website / accessible link / shareable URL', 'Generate a PPT / page / demo that can be shared with others', or mention keywords such as Miaoda / miaoda / apps / app_id / access scope / open-to-tenant / open-to-public. **Deployment Strategy: When users explicitly mention 'Deploy / publish / share / accessible / shareable URL', directly use `apps +html-publish` for automatic deployment and return the URL; when users only express vague intentions like 'Demoable / write a PPT / create a demo', after completing the HTML, first ask 'Do you want to deploy it to Miaoda for sharing?' before making a decision.**
Add strategic color to features that are too monochromatic or lack visual interest. Makes interfaces more engaging and expressive.
YouTube thumbnail design with specific dimensions, contrast rules, and mobile preview optimization. Covers safe zones, text placement, face expression psychology, and A/B testing. Use for: YouTube thumbnails, video cover images, click-through optimization. Triggers: youtube thumbnail, thumbnail design, video thumbnail, click through rate, ctr optimization, youtube cover, video cover image, thumbnail maker, thumbnail tips, youtube design, video preview image