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Found 439 Skills
Use before generating or improving Exercode course content to ensure the repository has tracked mise-managed runtimes and Bun tooling for authoring and evaluating content.
Expert guidance for building and extending CAP (Cloud Application Programming Model) applications in either Node.js or Java. Covers project initialization, CDS modeling, declarative annotations, and custom handler best practices for both runtimes. Use when building a new CAP app, extending an existing one, or reviewing CAP code for correctness and idioms — regardless of whether the stack is Node.js or Java.
Refactor Express.js/Node.js code to improve maintainability, readability, and adherence to best practices. Transforms callback hell, fat route handlers, and outdated patterns into clean, modern JavaScript/TypeScript code. Applies async/await, controller-service-repository architecture, proper middleware patterns, and ESM modules. Identifies and fixes anti-patterns including blocking event loop, improper error handling, forEach with async callbacks, and memory leaks.
Debug Express.js and Node.js applications with systematic diagnostic techniques. This skill provides comprehensive guidance for troubleshooting middleware execution issues, routing problems, CORS errors, async error handling, memory leaks, and unhandled promise rejections. Covers DEBUG environment variable usage, Node Inspector with Chrome DevTools, VS Code debugging, Morgan request logging, and diagnostic middleware patterns. Includes four-phase debugging methodology and common error message reference.
Verify a Node.js performance or memory fix by comparing Phargus measurements before and after the change. Use when deciding whether a runtime change helped, regressed, or remains inconclusive.
Diagnose and fix a website on Hostinger web hosting (Shared, Cloud or Agency plans) that is down, slow, erroring, insecure or failing to build. Checks the site from outside, reads builds, runtime logs, WordPress health, SSL, cache and PHP settings through the Hostinger MCP, names the cause with evidence, and applies the fix once the user agrees. Triggers: my site is down, site not loading, 500 / 502 / 503 error, white screen, error establishing a database connection, site is slow, SSL or certificate warning, not secure, changes not showing, Node.js build failed, app keeps crashing.
Audit a Hostinger web hosting account (Shared, Cloud and Agency plans) and report what needs attention: every plan and website, SSL problems, broken or vulnerable WordPress installs, failed Node.js builds and vulnerable npm packages, databases and Agency Plan orders near their limits, and hosting plans about to lapse. Read-only; produces a prioritised to-do list and names the skill that fixes each item. Triggers: what do I have on Hostinger, audit my hosting, check all my websites, what needs attention, health check my sites, are any of my sites broken, which of my sites are insecure.