942 skills · sorted by relevance
Review JavaScript written directly in HTML and move suitable code into external files. Replace inline event handlers with addEventListener, clarify browser verification steps, and explain how separating code supports maintenance, caching, and security.
Build Vue 3 applications using JavaScript and JSDoc comments that describe data types. Create components and reusable logic, configure Vite, routing, and state management, and check annotations and behavior with ESLint and Vitest.
Review pages for situations where JavaScript is disabled or unavailable. Check that important content appears in the initial HTML and that noscript elements offer useful alternatives, then suggest changes to keep core content and navigation accessible.
Analyze malicious JavaScript from phishing pages, payment data theft scripts, and malware downloaders. Unwrap encoded strings and nested execution layers to reveal hidden behavior, identify stolen data fields, and document suspicious destinations for incident response.
Use Bun to run JavaScript and TypeScript, manage project dependencies, build applications, and run tests. Includes guidance for choosing between Bun and Node, migrating existing projects, and configuring deployments on Vercel.
Check whether production JavaScript files are minified, meaning unnecessary characters are removed to reduce size. Review build settings and unused code removal, suggest configuration changes, and describe how to verify the resulting files in the browser.
Refactor JavaScript using ES6+ features to make code easier to read and maintain. Covers asynchronous operations with async/await, modules, and functional patterns that transform data without changing the original values.
Create Handsontable documentation examples for JavaScript, TypeScript, React, Angular, and Vue. The skill explains source files, generated JavaScript, required imports and license settings, embedding examples in guides, and checking that each framework version displays correctly.
Audit page links to find missing, empty, or unusable href values and navigation handled only by JavaScript. Guide fixes using real URLs and appropriate HTML elements so search engines can discover linked pages.
Write JavaScript for n8n Code nodes to aggregate, filter, and transform workflow data. Guidance covers data access, output formats, execution modes, common errors, and performance choices when processing large numbers of records.
Build, debug, and refactor JavaScript applications for browsers and Node.js. Covers asynchronous tasks with async/await, module organization, performance checks, and test creation, with explicit error handling and modern ES2023+ syntax.
Review and refactor React and Next.js code to address slow loading and interactions. Prioritized guidance covers sequential data requests, downloaded JavaScript size, server processing, repeated rendering, and browser work, with examples for choosing relevant improvements.
Audit JavaScript delivered to modern browsers for unnecessary older code and compatibility patches. Confirm performance costs with measurements, then review build targets and browser-specific delivery to reduce avoidable download size and processing work.
Inspect compressed JavaScript bundles, the files that package application code, to find excessive size and loading costs. Recommend splitting code, removing unused portions, and reviewing dependencies based on measured effects on page responsiveness.
Review JavaScript that changes a parent element’s appearance based on its children. Find opportunities to replace class toggling with CSS :has() rules, and explain how those rules express conditions involving child elements.
Set up ESLint, a tool that checks JavaScript for errors and coding rule violations. Configure shared rules, connect checks to editors and automated workflows, and review flagged code alongside its behavior in the browser.
Review the loading order of CSS and JavaScript to address rendering delays and flashes of unstyled content. Suggest changes to the document head, script loading, and critical styles, while checking layouts across screen sizes and interaction states.
Analyze custom virtual machines written in JavaScript by extracting instruction tables, examining constants, and capturing runtime state. Use the findings to reconstruct how obfuscated code executes, including custom runtimes used in risk-control engines.
Inspect suspicious PDFs without opening them in a document viewer. Use peepdf, pdfid, and pdf-parser to examine internal objects, extract embedded code and files, and report threat indicators such as URLs and hashes.
Implement and review Ethereum hashing in JavaScript or TypeScript using Keccak-256. Learn which library helpers to use and avoid confusing it with Node's SHA3 when calculating function identifiers, signature hashes, storage locations, or addresses.
Extract website content into Markdown, HTML, or plain text with Scrapling. Handle JavaScript-rendered pages and anti-bot challenges, or write Python crawlers that follow links, collect structured data, and resume interrupted runs.
Find CSS and JavaScript that delay a page’s first visible content. Confirm the bottleneck with browser tools or performance data, then adjust loading behavior and inline essential styles to help the page start rendering sooner.
Review large JavaScript bundles to find code that can load later. Suggest dynamic imports, which load modules when needed, and page-level splitting, with loading states for heavy libraries and features outside the initial view.
Reconstruct frontend behavior from served JavaScript, build manifests, and source maps, which link built code to source. Trace loaded modules, recover route and API references, and identify the smallest asset sequence that explains observed behavior.