Web & Frontend

agents-inc Bundle

File upload patterns - drag-drop dropzones, chunked and resumable uploads, presigned URL flows, file validation (MIME type, magic bytes), progress tracking, accessibility (ARIA)

tyler-r-kendrick Bundle

Use when choosing or configuring a TypeScript/JavaScript runtime environment. Covers the runtime landscape including Node.js, Deno, and Bun with feature comparisons, architectural differences, and selection guidance. USE FOR: comparing JavaScript runtimes, choosing between Node.js and Deno and Bun, understanding runtime capabilities, TypeScript execution environments, server-side JavaScript platform selection, runtime migration planning DO NOT USE FOR: specific Node.js APIs or patterns (use node), Deno-specific features or Deno Deploy (use deno), frontend framework selection (use nextjs or relevant framework skill), package manager comparison (use package-management)

agents-inc Bundle

React Native performance profiling, optimization, and monitoring - JS/UI thread analysis, re-render prevention, list optimization, image performance, bundle size, startup time, memory leaks, React Compiler, New Architecture benefits

agents-inc Bundle

PowerSync offline-first sync engine on SQLite for React Native - schema definition, watched queries, CRUD operations, backend connectors, sync rules, conflict resolution, attachments

agents-inc Bundle

React Native Gesture Handler - gesture types, GestureDetector, gesture composition, state machine, platform-specific gestures, swipeable rows, hover gestures

tryboy869 Bundle

[Applies to: **/*.{js,jsx}] Definitive guidelines for building robust, performant, and maintainable React-Redux applications using modern Redux Toolkit practices.

tryboy869 Bundle

[Applies to: **/*.{js,jsx,ts,tsx}] Definitive guidelines for building robust, performant, and maintainable React Native applications using modern TypeScript, functional components, and a feature-first architecture.

tryboy869 Bundle

[Applies to: **/*.{js,jsx}] This guide defines the definitive best practices for using Apollo Client 3.x in our React applications, focusing on cache hygiene, type safety, performance, and maintainability.

tyler-r-kendrick Bundle

USE FOR: Building Blazor applications with a rich component library that abstracts over CSS frameworks like Bootstrap, Bulma, Material, and Ant Design. Use when you need pre-built UI components (DataGrid, Charts, Modals) with consistent theming across providers. DO NOT USE FOR: Non-Blazor projects, applications that need pixel-perfect custom UI unrelated to any CSS framework, or scenarios where you want to avoid third-party component library dependencies.

tyler-r-kendrick Bundle

Use when identifying digital accessibility laws and standards that apply to software products. Covers ADA, Section 508, European Accessibility Act, WCAG standards, and emerging accessibility regulations globally with compliance requirements and litigation risks. USE FOR: ADA compliance, Section 508, European Accessibility Act, WCAG, EN 301 549, digital accessibility law, accessibility lawsuits, accessibility statements, VPAT, ACR DO NOT USE FOR: WCAG implementation techniques (use testing/accessibility-testing), accessibility testing tools (use testing/accessibility-testing), UI component design (use design-system skills)

agents-inc Bundle

Composable component APIs — parts, state, polymorphism

agents-inc Bundle

Vue 3 Composition API — reactivity primitives, composables, lifecycle, the 3.4+ and 3.5+ macros. Load when writing Vue 3 components or composables.

agents-inc Bundle

React Testing Library — query hierarchy, userEvent, async utilities, renderHook, custom render with providers. Load when writing or reviewing tests that render React components or hooks.

agents-inc Bundle

React Navigation 7+ patterns - static and dynamic APIs, type-safe navigation, stack/tab/drawer navigators, deep linking, authentication flows, screen preloading, header customization

agents-inc Bundle

Error boundary patterns, fallback UI, reset/retry, react-error-boundary library, React 19 createRoot error hooks

agents-inc Bundle

React Native Paper v5+ - Material Design 3 theming, PaperProvider, key components, dynamic color, accessibility, tree-shaking, custom fonts, navigation integration

tryboy869 Bundle

Apply when building React components, pages, SPAs, or UI systems. Covers: component architecture, state management, hooks patterns, performance, accessibility, and styling with Tailwind. Trigger for: React, Next.js, component, UI, frontend, SPA.

tryboy869 Bundle

Toolkit for interacting with and testing local web applications using Playwright. Supports verifying frontend functionality, debugging UI behavior, capturing browser screenshots, and viewing browser logs.

tryboy869 Bundle

[Applies to: **/*.component.ts] General rules for Angular components, focusing on code quality, performance, and maintainability.

tryboy869 Bundle

[Applies to: **/*] Definitive guidelines for writing clean, performant, and maintainable Jetpack Compose UI code, emphasizing best practices for component design, state management, and modifier usage.

itsimonfredlingjack-codex-dev-plugin Skill

Expert C4 Context-level documentation specialist. Creates high-level system context diagrams, documents personas, user journeys, system features, and external dependencies. Synthesizes container and component documentation with system documentation to create comprehensive context-level architecture. Use when creating the highest-level C4 system context documentation.

lvtd-llc Bundle

Implement common htmx interaction recipes in server-rendered web apps. Use when building lazy loading, boosted links/forms, active search, inline validation, delete buttons, CSS transitions, form reset, optimistic updates, pagination, infinite scroll, toggled selection, polling, custom dialogs, request headers, click-to-edit, or HTML/JSON endpoint splits.

lvtd-llc Bundle

Derive and debug CSS Grid layout math for grid coordinates, line placement, spans, negative indexes, fr units, minmax(), fit-content(), repeat(), auto-fill, and auto-fit. Use when building grid systems, explaining track sizing, troubleshooting fr distribution, placing items by line numbers, or converting a layout sketch into CSS Grid formulas.

lvtd-llc Bundle

Review and harden security for htmx and server-driven web apps. Use when handling user-supplied HTML, escaping or sanitizing fragments, adding CSP, evaluating XSS risk, configuring CSRF or cookies, loading htmx from a CDN, using SRI hashes, accepting hx-* attributes from content, or reviewing htmx request headers and history caching.

lvtd-llc Bundle

Explain, derive, and debug CSS math for measurement units, calc(), min(), max(), clamp(), custom properties, inheritance, em/rem scaling, percentages, viewport units, and box model formulas. Use when CSS dimensions compute unexpectedly, when mixing units, when building scalable spacing/type systems, or when reviewing box sizing and inherited values.

tyler-r-kendrick Bundle

Guidance for Markdig Markdown processor for .NET. USE FOR: converting Markdown to HTML, building custom Markdown pipelines, parsing Markdown AST, supporting CommonMark and extensions (tables, task lists, emoji, math), generating documentation from Markdown sources. DO NOT USE FOR: rich text editing UI (use a WYSIWYG editor), PDF generation from Markdown (convert to HTML first then use a PDF library), plain text formatting.

tyler-r-kendrick Bundle

USE FOR: Building 2D and 3D games, simulations, and interactive 3D applications using the Wave Engine (Evergine) with C#. Use when you need a component-based game engine with .NET integration, PBR rendering, and cross-platform support. DO NOT USE FOR: Business applications or web UIs (use Blazor or ASP.NET Core), simple 2D-only games where MonoGame is sufficient, or projects requiring the largest community and asset ecosystem (use Unity).

tryboy869 Bundle

Apply for project-overview. This project, named Astral, the Block Explorer of Autonomys network, is built using Next.js and TypeScript. It integrates various libraries for state management, UI components, and data fetching. - As

tryboy869 Bundle

Apply for codebase-overview. This codebase appears to be part of a web application built using TypeScript, React, and various NextUI components. It is structured to support a landing page, authentication flows, and a dashboard fo

itsimonfredlingjack-codex-dev-plugin Skill

Expert UI designer specializing in component creation, layout systems, and visual design implementation. Masters modern design patterns, responsive layouts, and design-to-code workflows. Use PROACTIVELY when building UI components, designing layouts, creating mockups, or implementing visual designs.

itsimonfredlingjack-codex-dev-plugin Skill

Expert C4 Component-level documentation specialist. Synthesizes C4 Code-level documentation into Component-level architecture, defining component boundaries, interfaces, and relationships. Creates component diagrams and documentation. Use when synthesizing code-level documentation into logical components.

itsimonfredlingjack-codex-dev-plugin Skill

Create interface designs, wireframes, and design systems. Masters user research, accessibility standards, and modern design tools. Specializes in design tokens, component libraries, and inclusive design. Use PROACTIVELY for design systems, user flows, or interface optimization.

tyler-r-kendrick Bundle

Use when modeling software systems using the Unified Modeling Language (UML) standard. Covers structural and behavioral diagram types, notation, relationships, multiplicity, visibility, and stereotypes. USE FOR: class diagrams, sequence diagrams, activity diagrams, state machine diagrams, use case diagrams, component diagrams, deployment diagrams, package diagrams, object diagrams, UML notation reference, relationship types, multiplicity, visibility modifiers, stereotypes DO NOT USE FOR: text-based diagram rendering (use mermaidjs, plantuml, or d2), enterprise architecture views (use togaf or archimate), data modeling (use erd)

tryboy869 Bundle

Generate AI-powered podcast-style audio narratives using Azure OpenAI's GPT Realtime Mini model via WebSocket. Use when building text-to-speech features, audio narrative generation, podcast creation from content, or integrating with Azure OpenAI Realtime API for real audio output. Covers full-stack implementation from React frontend to Python FastAPI backend with WebSocket streaming.

tryboy869 Bundle

Sets up ESLint for React and TypeScript projects aligned with company standards. Use when installing or configuring the project linter, adding devDependencies, custom ESLint rules, package.json scripts, or when the user asks to set up or migrate to the company React/TypeScript ESLint stack.

tryboy869 Bundle

Build dark-themed React applications using Tailwind CSS with custom theming, glassmorphism effects, and Framer Motion animations. Use when creating dashboards, admin panels, or data-rich interfaces with a refined dark aesthetic.