Skill UI

Controls headful browsers via a CLI that runs sandboxed JavaScript, keeping page state persistent while navigating, form-filling, screenshots, scraping, or web testing flows.

A specialized guide for building robust and scalable Discord bots from scratch. Covers modern best practices, including the use of slash commands, handling gateway intents, managing rate limits, and implementing sharding. Supports foundational patterns for both Discord.js (JavaScript/TypeScript) and Pycord (Python), ensuring your bot is production-ready and highly stable.

Provides a structured approach for creating, editing, and analyzing .docx files with tooling and best practices for tracked changes, comments, formatting, and text extraction, covering JavaScript document generation and Python OOXML editing plus markdown-based redlining.

Provides structured error handling patterns, logging, retry/circuit breaker strategies, and observability workflows across JavaScript, Python, and Go; ideal when designing resilience, retries, aggregated logging, or alerting.

A comprehensive guide providing a minimal working example for integrating with the Evernote Cloud API. It covers basic note creation, demonstrates the required ENML (Evernote Markup Language) format, and teaches core operations like listing notebooks and retrieving note details. Ideal for developers starting a new integration or testing API setup.

This skill acts as a comprehensive security scanner specializing in detecting Cross-Site Scripting (XSS) vulnerabilities in client-side code. It performs static analysis across React, Vue, Angular, and vanilla JavaScript, specifically identifying unsafe practices like direct HTML manipulation (innerHTML), raw rendering (v-html), and insecure URL handling. Use it when auditing frontend code for security flaws and needing best practices for secure coding.

This comprehensive guide provides documentation and code examples for utilizing the Gemini API, Google's advanced multimodal AI platform. It enables developers to power applications with cutting-edge capabilities, including text generation, multimodal understanding (images, audio, video), function calling, and structured data output. Supports major languages like Python, JavaScript, and Go.

Build sophisticated, event-driven automations using Granola's data triggers via Zapier webhooks. This guide details the event model, payload structure, and advanced filtering patterns. Implement custom handlers in JavaScript or Python to process meeting data, route based on attendees, or automatically update external systems like CRMs and task managers.

Guides teams through selecting a RUM platform, defining Core Web Vitals and custom events, and wiring JavaScript instrumentation so actual user performance data can be collected and analyzed for web apps.

A comprehensive guide covering 33+ essential JavaScript concepts, from fundamental types and type coercion to advanced topics like closures, event loop mechanics, hoisting, and asynchronous programming (Promises). Ideal for developers who need to deepen their understanding of JavaScript's internal workings, debug complex behavior, or teach robust JS fundamentals.

Uses ES2023+ syntax, async/await flows, and modern module patterns to write, debug, and optimise vanilla JavaScript or Node.js code—ideal when implementing promises, browser APIs, Web Workers, or reviewing .js/.mjs/.cjs files for correctness.

This comprehensive guide provides patterns and best practices for implementing robust testing strategies in modern JavaScript and TypeScript applications. It covers setting up test infrastructure, writing unit tests for functions and classes, creating integration tests for APIs, and implementing end-to-end tests for user flows, supporting TDD and CI/CD integration.