IDE & Editors

Production-ready scripts for Android app testing, building, and automation. Provides semantic UI navigation, build automation, accessibility testing, and emulator lifecycle management. Optimized for AI agents with minimal token output. Android equivalent of ios-simulator-skill.

Define canonical dotnet format and analyzer verification commands, and provide scripts that generate a format/analyzer report. Use when checking formatting or Roslyn analyzers without reformatting everything.

Use when working with any configuration file outside of project directories in ~/Code (unless already managed like ~/Code/CLAUDE.md) - handles chezmoi prefix mappings, template awareness, conflict resolution workflow, and sync to avoid losing changes and breaking templates

Develop features for the Cljr Clojure-to-.NET compiler. Use when adding emitter features, expression types, analyzer support, or testing features. Guides the complete workflow from Expr.cs to C# tests to NRepl verification. Critical for REPL-oriented development.

Generates a complete iOS app icon set with all required sizes. Use when asked to create an app icon, design an iOS icon, generate app store artwork, or make an icon for an iPhone/iPad app. Follows a philosophy-first approach - first defining the visual identity and concept, then producing production-ready icons.

Generate GameSpec JSON and Lua scripts for the AI Game Platform. Use when creating games, adding features like player movement, enemies, collectibles, or fixing Lua script issues. Supports FPS, 2D side-scrollers, and 3D platformers.

Generate comprehensive API documentation for REST, GraphQL, WebSocket APIs with OpenAPI specs, endpoint descriptions, request/response examples, error codes, authentication guides, and SDKs. USE WHEN user says 'viết document API', 'tạo API docs', 'generate API documentation', 'document REST endpoints', hoặc cần tạo technical reference cho developers.

Build new data ingestion providers following the FF Analytics registry pattern. This skill should be used when adding new data sources (APIs, files, databases) to the data pipeline. Guides through creating provider packages, registry mappings, loader functions, storage integration, primary key tests, and sampling tools following established patterns.

Extension to kobo-translation skill specifically for translating video subtitles and transcripts in SRT format. Adds subtitle-specific guidelines for character limits, spoken language patterns, chunked translation context management, and maintaining readability on screen. Use this skill when translating SRT subtitle files for KoboToolbox tutorials, webinars, or educational videos.

Meta-skill for selecting correct WorldCrafter skill. Use when unclear which skill to use, request maps to multiple skills, need to orchestrate skills, user asks for guidance, or ambiguous requests need clarification. Provides decision trees and trigger matching for feature-builder (complete features with forms), database-setup (tables/migrations/RLS), test-generator (add tests), route-creator (simple pages/APIs), auth-guard (authentication/authorization), ai-assistant (AI generation/suggestions/consistency), visualization (maps/timelines/graphs), and chatgpt-setup (MCP integration). Do NOT use when request clearly maps to one skill or trigger phrases clearly indicate specific skill.

Provides ASSERT/ASSUME macro pattern, .sby file template, and f_past_valid usage. Triggers when adding formal verification or writing assertions.

Provides patterns and examples for generating test data using factory libraries. Use this skill when you need to create realistic and maintainable test data for your application. It covers factory patterns (e.g., Factory Boy for Python, Polly.js for JavaScript), handling relationships between models, using traits for data variations, sequence generation for unique values, and cleanup strategies. Trigger this skill for tasks involving test fixtures, data seeding for tests, or factory implementation.

Uncover and fix bugs in code snippets using language-specific expertise and reproducible evidence.

Documentation for the htmx JavaScript library (attributes, events, headers, API, extensions, examples, migration guides, server examples). Use when you need accurate htmx syntax/behavior or to locate the right reference page for an htmx question.

Comprehensive backend development guide for Node.js/NestJS/TypeScript microservices. Use when creating controllers, services, database access, middleware, DTOs, or working with NestJS APIs, dependency injection, or async patterns. Covers layered architecture (controllers → services → dbservice), error handling, performance monitoring, testing strategies.

Weaves custom Skills for Claude following official best practices including proper structure, metadata, progressive disclosure, and security guidelines. Use when creating new skills, building custom workflows, or when user mentions skill creation, skill development, custom skill authoring, weaving skills, or crafting skills.

Design and build reusable, maintainable UI components following modern architecture patterns for React, Vue, or other frameworks. Use this skill when creating component files (.jsx, .tsx, .vue), implementing component logic, managing component state, defining props interfaces, or organizing component hierarchies in directories like components/, views/, or pages/. Apply this skill when building functional components with hooks (React), composition API components (Vue), single-file components, implementing component composition patterns, managing local vs. lifted state, or creating custom hooks for shared logic. This skill ensures components follow single responsibility principle, are properly encapsulated, have clear prop interfaces with TypeScript types, support reusability across contexts, and follow modern patterns like atomic design, container/presentational separation, and compound components.

Set up GPU sandboxes for interpretability research. Use when writing setup.py scripts with Sandbox, SandboxConfig, ModelConfig, or create_notebook_session. Provides the exact API for Modal GPU environments - MUST read before writing any sandbox setup code.

Guide for creating high-quality MCP (Model Context Protocol) servers that enable LLMs to interact with external services. Use when building MCP servers to integrate APIs, whether in Python (FastMCP) or Node/TypeScript (MCP SDK).

Chrome extension development guide. Use for creating browser extensions, manifest files, background scripts, content scripts, Chrome APIs, and publishing extensions on Chrome Web Store.