“javascript”

Production JavaScript and TypeScript playbook.

House rules for JavaScript.

Writes, debugs, and refactors JavaScript code using modern ES2023+ features, async/await patterns, ESM module systems, and Node.js APIs.

JavaScript and Node.js patterns, async programming, modules, runtime internals, and modern ES2024+ features.

Write, review, or debug JavaScript in an n8n Code node.

Use this skill when writing, reviewing, debugging, or modernizing JavaScript across browser, Node.js, and pure JS projects.

JavaScript and TypeScript development with ES6+, Node.js, React, and modern web frameworks.

Statically reviews discovered JavaScript for API-style routes, fetch/axios calls, and source-map references.

Deobfuscates malicious JavaScript code used in web-based attacks, phishing pages, and dropper scripts by reversing encoding layers, eval chains, string…

Deobfuscates malicious JavaScript found in phishing pages, web skimmers, and dropper scripts by reversing encoding layers, eval chains, string manipulation…

Executes JavaScript in browser pages, captures console output, and debugs page-side behavior with cdp.

Creates Vue 3 components, builds vanilla JS composables, configures Vite projects, and sets up routing and state management using JavaScript only — no…

Triage new issues in the Sentry `javascript` project by archiving non-actionable noise.

Browser automation over Chrome DevTools Protocol on port 9222 — navigate, evaluate JavaScript, take screenshots, and extract readable article content as…

Use when a JavaScript or TypeScript suite still depends on Mocha, Chai, or Sinon and needs an incremental Jest migration.

Use before you write or change TypeScript or JavaScript, add an npm dependency, set up a new package, or write a frontend file, a Node script, or a test file…

TypeScript and JavaScript coding style conventions, centered on top-down narrative ordering (caller first, helpers below) and functions over classes.

Write Vitest specs for Vue 3 JavaScript (Vite Plus, happy-dom, @vue/test-utils) and analyze V8 coverage + Fallow health to prioritize test-first refactors.

Write JavaScript or Python for the n8n Custom Code Tool (@n8n/n8n-nodes-langchain.toolCode) — the AI-agent-callable tool, NOT the workflow Code node.

Generates production-grade Cypress E2E and component tests in JavaScript or TypeScript.

OpenTelemetry in Node.js / JavaScript / TypeScript — NodeSDK, declarative YAML configuration, auto-instrumentations, ESM vs CJS import patterns.

Creates, deploys, and troubleshoots BigQuery User-Defined Functions (UDFs) and Remote Functions across SQL, JavaScript, Python, and Cloud Run endpoints.

Configure and use EAS Update for over-the-air JavaScript and asset updates with expo-updates and EAS CLI.

Measure JavaScript and TypeScript function complexity, join LCOV test coverage, compute CRAP scores, and gate delivery on a threshold.