Build accessible, user-friendly forms with validation. Covers react-hook-form, Zod schemas, error handling UX, multi-step forms, input patterns, and form accessibility. Use for registration forms, checkout flows, data entry, and user input.

Static analysis of HTML forms to find security issues. No requests sent - just code inspection. Safe and fast.

Test WordPress form submissions and email delivery. Validates contact forms, checks WP Mail SMTP configuration, and sends test emails. Use when verifying form functionality or troubleshooting email delivery issues.

Use when symfony form types validation

A rigorous workflow for implementing code with formal verification using Idris2.

Universal code formatter and linter analyzer for multi-ecosystem projects (Laravel/PHP, Bun/Node/TS/JS, React, Vue, Astro, Nuxt, Go, Rust, Deno) with intelligent asdf version management, auto-detection, and interactive workflows

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Expert in procedural compliance for expropriation forms including form-specific checklists (statutory authority, legal descriptions, service requirements, compensation breakdowns, signature requirements) and common defects database. Use when verifying Forms 1-12 before submission, identifying procedural defects, or ensuring compliance with O.Reg. 363/90. Key terms include procedural compliance, statutory authority citation, service requirements, dual signing officers, common defects

Router for web form development. Use when creating forms, handling validation, user input, or data entry across React, Vue, or vanilla JavaScript. Routes to 7 specialized skills for accessibility, validation, security, UX patterns, and framework-specific implementations. Start here for form projects.

Generate FOSMVVM Form Specifications (Fields protocols) with validation and localization. Use when defining user input contracts for forms, request bodies, or any ValidatableModel.

Generate Fluent DataModels for FOSMVVM server-side persistence. Use when creating new database-backed entities, adding tables, or when the user mentions adding Models like Users, Ideas, Documents, etc. Uses fosmvvm-fields-generator for the Fields layer, then generates Fluent DataModel, migrations, and tests.

Generate comprehensive ServerRequest tests using VaporTesting infrastructure. Use when testing any ServerRequest type (ShowRequest, ViewModelRequest, CreateRequest, UpdateRequest, DeleteRequest) against a Vapor server.

Generate comprehensive ViewModel tests with multi-locale translation verification. Use when creating test coverage for ViewModels, especially those with localization.

Expert assistant in free and open-source licenses (FOSS). Helps users choose the most suitable free/open license for their creations through a guided questionnaire. Use when user asks about open-source licensing, GPL, MIT, Apache, Creative Commons, copyleft, permissive licenses, or wants to make their project open-source. Covers software licenses, Creative Commons for creative works, and region-specific licenses like CeCILL. Responds in the user's language.

A 10-hour, 3-phase strategic framework to align a core team and define a product's unique promise before building. Use it when starting a new venture, launching a high-risk feature, or when a team lacks alignment on target customers and differentiation.

> **Last updated:** November 2025. Statistics and ecosystem data reflect this period.

Build and test Solidity smart contracts with Foundry toolkit. Use when developing Ethereum contracts, writing Forge tests, deploying with scripts, or debugging with Cast/Anvil. Triggers on Foundry commands (forge, cast, anvil), Solidity testing, smart contract development, or files like foundry.toml, *.t.sol, *.s.sol.

Fourier analysis specialist covering series, transforms, signal processing, and harmonic analysis

Hunt performance bottlenecks with swift precision. Stalk the slow paths, pinpoint the prey, streamline the code, catch the gains, and celebrate the win. Use when optimizing performance, profiling code, or hunting for speed.

FPGA development guidelines covering Vivado, SystemVerilog, timing closure, AXI interfaces, and hardware optimization.

Build React components using @fpkit/acss library patterns. Scaffolds complete component structures (tsx, types, scss, stories, tests), validates CSS variables follow naming conventions (--component-property with rem units), enforces TypeScript patterns, accessibility standards (WCAG 2.1 AA), and Storybook documentation. Use when building new components, generating boilerplate, or refactoring to use fpkit primitives. Includes automation scripts, reference guides, and templates.

Guide for building applications with @fpkit/acss components. This skill should be used when composing custom React components from fpkit primitives, validating CSS variable naming conventions, extending fpkit components with custom behavior, or ensuring accessibility compliance in fpkit-based applications. Use when the user needs help with component composition patterns, CSS customization, or accessibility testing. Not for developing the @fpkit/acss library itself.

Expert on K1810VM87 (Intel 8087) floating-point coprocessor for ES-1841. Provides guidance on FPU registers, data types, instructions, exception handling, and CPU-FPU synchronization.

Collect posts and comments from Twitter/X around specific topics, organize netizen opinions and add host commentary, and generate narration scripts.

Expert on SpecWeave framework structure, rules, and spec-driven development conventions. Use when learning SpecWeave best practices, understanding increment lifecycle, or configuring hooks. Covers source-of-truth discipline, tasks.md/spec.md formats, living docs sync, and file organization patterns.

Multi-signal framework detection with confidence scoring for 6 major frameworks

You are a framework and library documentation expert specializing in finding and synthesizing information about development tools and libraries. Your goal is to provide accurate, up-to-date informatio

Startup protocol executed once at session start. Detects system instruction impulses, caches framework observations from memory graph, establishes temporal awareness, and activates specialized profiles. Provides initial session initialization protocol and session response protocol applied before each response. Execute procedures in sequence without displaying process details to user.

Generate API documentation, user guides, and technical documentation for Frappe apps. Use when documenting APIs, creating user guides, or generating OpenAPI specs.

Generate fixture files for Frappe test data and master data. Use when creating test fixtures, setup data, or master data for new sites.

Generate integration tests for multi-DocType workflows in Frappe. Use when testing end-to-end workflows, state transitions, or complex business processes.

Generate comprehensive unit tests for Frappe DocTypes, controllers, and API methods. Use when creating test files, writing test cases, or setting up test infrastructure for Frappe/ERPNext applications.

AI-powered automation agent for FreeCAD CAD operations including natural

Expert skill for FreeRTOS configuration, debugging, and optimization

Expert in Static Site Generation (SSG) using Gravito Freeze. Trigger this when building high-performance marketing sites, blogs, or documentation.

FreqAI self-adaptive ML retraining framework. Auto-retrains models on fresh data, prevents overfitting, adapts to regime changes. Built on FreqTrade.

'Test Orient from a clean clone to validate the full development setup and test suite'

See the main Data Freshness and Latency skill for comprehensive coverage of freshness monitoring and SLO tracking.

Reference for Front REST API integration. Use when working with Front API schemas, nullable fields, webhooks, or debugging Front SDK issues.

DOM Testing Library patterns for behavior-driven UI testing. Framework-agnostic patterns for testing user interfaces. Use when testing any front-end application.

Build accessible user interfaces using semantic HTML, ARIA attributes, keyboard navigation, and WCAG compliance. Use this skill when creating or modifying UI components, forms, interactive elements, navigation menus, modals, or any user-facing interface code. When working on Astro component files (.astro), React/Vue/Svelte component files, HTML template files, form components with inputs and labels, navigation menus and interactive widgets, modal dialogs and accordions, image components with alt text, button and link implementations, focus management code, or screen reader announcement logic.

Distinctive frontend design principles for avoiding generic AI defaults, implementing thoughtful typography/color/animations, and creating polished user experiences based on Claude Code design research

Analyze React/Next.js components to extract typography, colors, layout, fonts, spacing systems, and design tokens. Identifies accessibility issues, responsive breakpoints, and component hierarchies.

Expert in frontend stack decisions, Cloudflare deployment, and bridging design systems to component implementations. Specializes in internal tools that expose prototypes to select users.

Expert frontend development guidance covering React, Vue, Angular, TypeScript, state management, component architecture, performance optimization, accessibility, testing, and modern web APIs. Produces production-ready, maintainable, and performant frontend code with best practices. Use when building web applications, implementing UI components, managing application state, optimizing performance, or when users mention React, Vue, Angular, TypeScript, hooks, state management, components, or frontend development.

Design and build reusable UI components following Astro's server-first architecture with islands, proper component composition, TypeScript props, and strategic client-side hydration. Use this skill when creating or modifying Astro components, React/Vue/Svelte islands, layout components, or any reusable UI elements. When working on .astro component files, framework component files (.jsx, .tsx, .vue, .svelte), layout components, page components, component prop interfaces, slot implementations, client directive usage (client:load, client:idle, client:visible), scoped component styles, or component documentation and examples.

Especialista em Frontend Mobile-First, UX Black & Orange, Sistema de Cache Offline (IndexedDB), Navegação SPA v3.0 e Performance. Use para criar/ajustar telas, componentes, otimizar CSS/JS, implementar patterns de cache ou debugging de frontend issues.

Write Tailwind CSS utility classes and component styles following scoped CSS patterns, design tokens, responsive breakpoints, and dark mode support. Use this skill when styling components, creating layouts, implementing design systems, or writing CSS/Tailwind classes. When working on Astro component style blocks, Tailwind configuration files, global CSS files, CSS custom properties and design tokens, component scoped styles, responsive breakpoints and media queries, dark mode theming, CSS Grid and Flexbox layouts, animation and transition styles, or Tailwind @apply directives and utility composition.

Autonomously debug frontend issues through empirical browser observation using Chrome DevTools MCP. This skill should be used when debugging UI/UX issues, visual bugs, interaction failures, console errors, or network problems in web applications. Provides systematic 6-phase debugging workflow with GitHub integration, automated verification, and knowledge retention.