Essential command-line tools and system utilities.
Headless browser automation using Playwright CLI. Use when you need headless browsing, parallel browser sessions, UI testing, screenshots, web scraping, or browser automation that can run in the background. Keywords - playwright, headless, browser, test, screenshot, scrape, parallel.
Keep the 0 Finance CLI aligned with product capabilities.
Manage DNS records for domains hosted on Vercel using the Vercel CLI
Use when the user asks to refactor Python code, restructure modules, improve code organization, extract functions/classes, simplify complex logic, or reduce duplication — without changing external behavior. Also use when the user mentions "clean up this code", "make this more readable", "break this apart", or asks to reorganize Python files, even if they don't say "refactor" explicitly.
Use when working with icons in any project. Provides CLI for searching 200+ icon libraries (Iconify) and retrieving SVGs. Commands: `better-icons search <query>` to find icons, `better-icons get <id>` to get SVG. Also available as MCP server for AI agents.
Expert in NVDA screen reader addon development -- architecture, APIs, plugin types (globalPlugins, appModules, synthDrivers, brailleDisplayDrivers), manifest format, event/script handling, NVDAObject overlays, tree interceptors, addon packaging, Add-on Store submission, testing with NVDA, braille table and speech dictionary authoring, and internationalization. Grounded in the official NVDA source code (github.com/nvaccess/nvda) and community development guides.
Color contrast and visual accessibility specialist. Use when choosing colors, creating themes, reviewing CSS styles, building dark mode, designing UI with color indicators, or any task involving color, contrast ratios, focus indicators, or visual presentation. Ensures WCAG AA compliance for all color and visual decisions. Applies to any web framework or vanilla HTML/CSS/JS.
Design custom syntax elements with reuse-first approach for workflow orchestration. Use when user needs custom operators, checkpoints, or syntax patterns not available in core syntax.
Use when designing modules, APIs, or classes before implementation.
Use when planning QA, choosing review methods, designing tests, or debugging fails. Triggers on: defects found late, tests pass but production bugs, coverage disputes, review ineffective, spending excessive time debugging.
Use when modifying existing code, improving structure without changing behavior, or deciding between refactor, rewrite, or fix-first.
Add a standard Purpose comment above each pure virtual method declaration in C++ interface header files (.h/.hpp). Use when asked to batch annotate interface classes or enforce a consistent comment block above `virtual ... = 0;` declarations.
Guides React/Next.js/TypeScript project organization using feature-based architecture. Use when structuring new projects, reorganizing codebases, or deciding where to place new code.
Creates atomic git commits following Conventional Commits specification with detailed, well-structured messages. Analyzes changes and splits them into logical units. Use when committing code changes that need proper structure and comprehensive documentation (e.g., "commit my authentication changes" or "finished implementing search, time to commit").
Manages complete PR workflow from start to finish - creates feature branch, commits changes, pushes to remote, and opens pull request. Use when user wants to create a PR (e.g., "create a PR for these changes" or "the fix is ready, push it up and create a pull request").
Guides when to abstract vs duplicate code. Use this skill when creating shared utilities, deciding between DRY/WET approaches, or refactoring existing abstractions.
Guides TypeScript best practices for type safety, code organization, and maintainability. Use this skill when configuring TypeScript projects, deciding on typing strategies, writing async code, or reviewing TypeScript code quality.
Clean up .direnv directories that act as Nix store GC roots, freeing disk space. Use when you want to reclaim Nix store space by removing stale direnv flake caches (e.g., "clean up direnv roots", "free nix store space", "remove direnv caches").
Apply language-agnostic naming conventions using the A/HC/LC pattern. Use when naming variables, functions, or reviewing code for naming consistency.
Create a targeted intrusion timeline for a Windows incident using whatever artifacts are available (event logs, EDR, SIEM exports, triage notes).
Hypothesis-driven hunt plan for suspicious PowerShell, plus query snippets for common telemetry.
