Development

Canonical Claude Code skill authoring kit covering agent Skills, sub-agent templates, custom slash commands, orchestration patterns, hooks, memory, settings, and IAM permission rules aligned with official documentation.

TypeScript best practices with modern frameworks, full-stack development, and type-safe patterns for 2025

Create beautiful, accessible user interfaces with shadcn/ui components (built on Radix UI + Tailwind), Tailwind CSS utility-first styling, and canvas-based visual designs. Use when building user interfaces, implementing design systems, creating responsive layouts, adding accessible components (dialogs, dropdowns, forms, tables), customizing themes and colors, implementing dark mode, generating visual designs and posters, or establishing consistent styling patterns across applications.

Process multimedia files with FFmpeg (video/audio encoding, conversion, streaming, filtering, hardware acceleration) and ImageMagick (image manipulation, format conversion, batch processing, effects, composition). Use when converting media formats, encoding videos with specific codecs (H.264, H.265, VP9), resizing/cropping images, extracting audio from video, applying filters and effects, optimizing file sizes, creating streaming manifests (HLS/DASH), generating thumbnails, batch processing images, creating composite images, or implementing media processing pipelines. Supports 100+ formats, hardware acceleration (NVENC, QSV), and complex filtergraphs.

Create distinctive, production-grade frontend interfaces with high design quality. Use when the user asks to build web components, pages, artifacts, posters, or applications (websites, landing pages, dashboards, React components, HTML/CSS layouts, or when styling/beautifying any web UI). Generates creative, polished code and UI design that avoids generic AI aesthetics.

Django full-featured Python web framework with batteries included (ORM, admin, auth)

Generate production notes defining song structure, hooks, instrumentation hints, per-section tags, and mix parameters. Aligns with style spec and blueprint production guidelines. Use when creating arrangement, dynamics, and audio engineering guidance for composition and rendering.

Generates layered box-shadow elevation tokens for depth hierarchy. Use when creating elevation systems, card shadows, modal depth, or dark mode shadow variants. Outputs CSS, Tailwind, or JSON.

React Hooks patterns including custom hooks and dependency management. Use when implementing component logic.

Technical Architect & Delivery Strategist who synthesizes product requirements and UI/UX designs into clear, actionable Technical Design Documents (TDD). Translates business flows into concrete system architecture and implementation plans. Defines end-to-end implementation paths with well-scoped phases and clear responsibility assignments. Specifies frontend-backend contracts (APIs, events, payloads, states, error models). Documents data models, integrations, security, and non-functional requirements. Explains happy paths and failure scenarios including edge cases, retries, fallbacks, and recovery. Enables confident implementation and smooth collaboration. Use when creating technical specifications, designing system architecture, planning implementation, defining APIs, or translating design into engineering work.

WHEN: Next.js project review, App Router patterns, Server/Client Component separation, data fetchingWHAT: Router pattern analysis + SC/CC separation + next/image·font optimization + Server Actions reviewWHEN NOT: General code quality → code-reviewer, Bundle performance → perf-analyzer

Analyze web interfaces for UX issues, accessibility compliance (WCAG 2.1), color contrast, typography hierarchy, responsive design, and Core Web Vitals. Returns actionable improvements with code examples.

Design and build reusable, composable UI components following single responsibility principle with clear interfaces and proper state management. Use this skill when creating React components, Vue components, or other framework components, defining component props and interfaces, managing component state, building reusable UI elements, working with component files (*.tsx, *.jsx, *.vue, *.svelte, components/*, ui/*), implementing component composition patterns, encapsulating component logic, documenting component APIs, keeping state local or lifting it up when needed, designing component hierarchies, or refactoring monolithic components into smaller pieces. Apply this skill when building new components, refactoring existing component structures, reviewing component design patterns, or ensuring components are maintainable and reusable.

Clean code principles for readable, maintainable software

Generates section list for a page. Deterministic mapping. Does not write content.

This skill should be used when the user asks to "access LSEG data", "query Refinitiv", "get market data from Refinitiv", "download fundamentals from LSEG", "access ESG scores", "convert RIC to ISIN", or needs the LSEG Data Library Python API.

This skill should be used when users need to capture screenshots of web pages. It supports full-page screenshots, viewport-specific captures, responsive screenshots across multiple device sizes, and element-specific screenshots. Use this skill for visual testing, documentation, design reviews, or any task requiring automated browser screenshots.

Understanding StickerNest's parallel DOM/WebGL rendering architecture. Use when working with the dual renderer system, switching between 2D DOM and 3D WebGL modes, or understanding how desktop and VR/AR rendering coexist. Covers SpatialCanvas, mode switching, and renderer coordination.

Research technical solutions by searching the web, examining GitHub repos, and gathering evidence. Use when exploring implementation options or evaluating technologies.

Accelerates full-text search across large codebases using smart strategies - parallel searches, pattern optimization, file filtering, and result aggregation. Optimized for instant execution with minimal context loading.