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Found 6,249 Skills
Data visualization design based on Stanford CS448B. Use when: (1) Choosing appropriate chart types for data (2) Selecting visual encodings (position, color, size) (3) Critiquing or improving visualizations (4) Building D3.js visualizations (5) Designing interactions and animations (6) Choosing color palettes for accessibility (7) Visualizing networks or text data Covers Bertin, Mackinlay, Cleveland & McGill principles.
Converts diagram code (Mermaid, PlantUML) into image files (PNG/SVG). Useful for visualizing text-based architecture diagrams, flowcharts, and sequence diagrams.
Douyin Video Batch Download Tool - Implements efficient, incremental video download functionality based on the F2 framework. Supports single/batch creator download, automatic Cookie management, and differential update mechanism. This skill should be used when users need to batch download videos from specific creators, deploy automated downloads on servers, or regularly update video libraries.
Self-hosted TypeScript auth framework with social auth, 2FA, passkeys, organizations, RBAC, and 15+ plugins. Supports Drizzle/Prisma/Kysely adapters. Self-hosted alternative to Clerk/Auth.js. Use when: configuring auth, adding plugins, social OAuth, multi-tenant SaaS, organizations with teams and RBAC, two-factor authentication (TOTP/OTP/backup codes), email verification, password reset flows, session management, rate limiting, CSRF and cookie security, Expo/mobile, D1 adapter errors, TanStack Start integration, additionalFields bugs, admin plugin, migrating from NextAuth, migrating from Clerk, migrating from Supabase Auth, or troubleshooting auth issues.
Coordinates skills, frameworks, and workflows throughout the project lifecycle using pattern-based sequencing, goal decomposition, phase-gate validation, and multi-agent orchestration. Use when starting multi-phase projects, sequencing frameworks, decomposing goals into capability plans, validating phase-gate readiness, coordinating subagents, or designing MCP-based tool orchestration.
ConvexFS (convex-fs) — path-based file storage and serving component for Convex powered by bunny.net CDN. Covers installation, setup, file upload/download flows, path management, blob lifecycle, atomic transactions (move/copy/delete), compare-and-swap, signed URLs, file expiration, garbage collection, auth for uploads/downloads, multiple filesystems, React integration, and production best practices. Use when working with ConvexFS, uploading files in Convex, serving files via CDN, managing file paths, building file storage features, or configuring bunny.net with Convex. Triggers on: convex-fs, ConvexFS, bunny.net, file upload, file storage convex, blob, commitFiles, registerRoutes, buildDownloadUrl, fs.stat, fs.list, fs.transact, fs.move, fs.copy, fs.delete, fs.writeFile, fs.getDownloadUrl, "how do I upload files in Convex", "serve files from Convex", "ConvexFS setup".
A cognitive framework based on learning first principles, providing learning method diagnosis, efficiency assessment, and optimization advice. Use when: (1) Diagnosing if current learning methods align with first principles, (2) Evaluating learning plan efficiency and time investment, (3) Analyzing learning behavior problems and providing improvement suggestions, (4) Determining if learning content is worth the time investment. Core principle chain: Self-learning → Induction → Self-output → Expression restructuring → Logical understanding → Practice.
Use when working on or reviewing session execution, command handling, shell state, FIFO-based streaming, or stdout/stderr separation. Relevant for session.ts, command handlers, exec/execStream, or anything involving shell process management. (project)
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.
Check video titles, thumbnails and opening hooks based on the MrBeast strategy. Use it when users mention "video title", "thumbnail", "click-through rate", "CTR", "watch time".
Discover connections between documents, build knowledge networks, and establish bidirectional links across your personal Yuque knowledge base. For personal/individual use — operates on your own docs.
Create algorithmic art using p5.js with seed-based randomness and interactive parameter exploration. Use this when users request to create art with code, generative art, algorithmic art, flow fields, or particle systems. Create original algorithmic art instead of copying existing artists' works to avoid copyright infringement.