Skill UI

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.

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.

Curated walk-through of 33+ essential JavaScript concepts, covering primitives, scope, functions, and async behavior for explaining, teaching, or debugging JS.

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.

A comprehensive guide for implementing robust testing strategies in modern JavaScript and TypeScript applications. This resource covers best practices for unit testing, integration testing, end-to-end testing (E2E), and implementing Test-Driven Development (TDD). It is essential for setting up reliable test infrastructure, mocking dependencies, and integrating continuous testing into CI/CD pipelines for frameworks like React and Vue.

Guides TypeScript/JavaScript developers on Linear SDK patterns for reusable clients, pagination, type-safe errors, batching, and caching so they can build optimized issue-management workflows with the Linear API.

This comprehensive guide covers mastering modern JavaScript features (ES6+), advanced functional programming patterns, and industry best practices. It provides guidance on refactoring legacy code, optimizing performance, managing asynchronous operations, and building highly maintainable, scalable web applications.

Guides writing JavaScript inside n8n Code nodes, covering modes, data access patterns, webhook structure, return formats, helper utilities, and best practices for HTTP requests and DateTime handling.

Automatically scans code for reflected, stored, and DOM-based XSS risks across HTML, JavaScript, CSS, and URLs, providing reports and safe proof-of-concept payloads for use in reviews, audits, or pre-deployment checks.

Detects TypeScript/JavaScript circular imports, visualizes dependency cycles with tools like madge, and offers strategies (shared interfaces, DI, dynamic/type-only imports, barrel restructuring) plus CI checks and ESLint rules for ongoing prevention.

This agent provides deep, practical expertise in TypeScript and JavaScript. It covers complex topics like type-level programming, branded types, conditional types, and advanced performance optimization for large-scale projects. It is ideal for diagnosing complex type errors, optimizing build processes, and managing monorepo configurations, ensuring robust and maintainable codebases.