654 Claude Code skills tagged Javascript. Browse all programming language-related skills in the open ClaudSkills registry — free to install, one-click via the desktop app.
Showing top 200 of 654 skills, ranked by quality score.
Audit technical SEO across crawlability, indexability, security, URLs, mobile, Core Web Vitals, structured data, JavaScript rendering, and related platform signals like robots.txt
growth
This skill should be used when the user asks to 'research package', 'package intel', 'what does [npm-pkg] do', 'add package to knowledge graph', 'enrich [pkg]', when adding depends
science
Detect Single Responsibility Principle (SRP) violations using multi-dimensional analysis. Use when reviewing code for "SRP", "single responsibility", "god class", "doing too much",
engineering
Automates Apple Reminders using JavaScript for Automation (JXA). Use when asked to "create reminders programmatically", "automate reminder lists", "JXA Reminders scripting", or "ma
content
Use when bundling JavaScript/TypeScript code with Bun's fast bundler. Covers building for different targets, tree-shaking, code splitting, and optimization strategies.
tools
Primary tool for all code navigation and reading in supported languages (Rust, Python, TypeScript, JavaScript, Go, Java, Scala, SQL). Use instead of Read, Grep, and Glob for findin
engineering
ESLint, Prettier, and StyleLint configuration standards for JavaScript code quality and formatting, including flat config setup, rule management, and build integration
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JavaScript project structure, package.json configuration, dependency management, and Maven integration standards for consistent project setup and builds
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Jest unit testing standards covering configuration, test structure, testing patterns, and coverage requirements
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JSDoc documentation standards for JavaScript functions, classes, modules, and web components
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Validates that version strings in Dockerfiles match package.json dependencies and constraints. Use when updating Docker base images, Node.js versions, pnpm versions, turbo versions
engineering
Control and interact with a live browser session on any scraped page — click buttons, fill forms, navigate flows, and extract data using natural language prompts or code. Use when
engineering
Expert-level JavaScript development with modern ES2024+ features, Node.js, npm ecosystem, and best practices
engineering
Recherche dans la documentation officielle Anime.js pour créer des animations JavaScript. Utiliser quand l'utilisateur a besoin d'aide avec anime.js pour des animations, timelines,
engineering
Analyze environment variables in JavaScript/TypeScript projects. Identifies unused variables, infers permission scopes, detects specific services (Stripe, AWS, Supabase), and docum
security
Use when adding an interactive UI component that requires client-side JavaScript - creates a framework island with hydration strategy.
engineering
Extract clean markdown from any URL, including JavaScript-rendered SPAs. Use this skill whenever the user provides a URL and wants its content, says "scrape", "grab", "fetch", "pul
engineering
SafetyMails platform help — bulk email verification (up to 2M emails, 19-step algorithm), real-time API validation (JavaScript embed for forms), Email Finder (B2B corporate lookup)
sales
Expert SurrealDB 3 skill. Use when working with SurrealDB, SurrealQL queries, multi-model data modeling (document, graph, vector, time-series, geospatial), schema design, graph tra
security
Run Python (ruff) and JavaScript (Biome) linting.
engineering
Node.js 의존성 안전 업데이트. 「npm 패키지 업데이트해줘」「Node.js 의존성 업데이트」등으로 기동.
engineering
Esperto di HTML-JS Card per Home Assistant Lovelace. Usa quando devi creare card con HTML, CSS e JavaScript inline: variabili hass/entities/card, hass-update event, callService, sh
engineering
Write JavaScript code in the style of Dan Abramov, co-creator of Redux and React core team member. Emphasizes predictable state management, composition over inheritance, and develo
engineering
Creates, edits, and manages Power Pages Server Logic files — server-side JavaScript that runs securely on the Power Pages runtime. Orchestrates the full lifecycle: gathering requir
engineering
Add shadcn/ui components via pnpm dlx, then normalize generated Tailwind color classes to Scaffa theme tokens
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Write, debug, and optimize Adobe Illustrator automation scripts using ExtendScript (JavaScript/JSX). Use when creating or modifying scripts that manipulate documents, layers, paths
engineering
Technical implementation guide for AEM Edge Delivery blocks - DOM manipulation, decoration patterns, and JavaScript best practices. Use when implementing block functionality after
engineering
Expert JavaScript developer specializing in modern ES2023+ features, asynchronous programming, and full-stack development. Masters both browser APIs and Node.js ecosystem with emph
engineering
用于任何「运行/执行/评估代码」的请求（如 run this code、execute script、用 Python 画图、跑代码/画图/执行脚本）。通过 AgentBay SDK 创建 code_latest 沙箱，调用 run_code 执行并返回结果。支持 Python、JavaScript、R、Java。
engineering
Browser automation for AI agents via inference.sh. Navigate web pages, interact with elements using @e refs, take screenshots. Capabilities: web scraping, form filling, clicking, t
science
Optimize personal website and web portfolio discoverability, crawlability, metadata, structured data, content usefulness, and AI-readable signals. Use when the user asks about port
growth
AgentQL is TinyFish's web automation and extraction toolkit that layers a natural-language query system on top of live sites. Its Python and JavaScript SDKs integrate with Playwrig
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Install and configure the Algolia JavaScript v5 client with proper API key management. Use when setting up a new Algolia integration, configuring Application ID and API keys, or in
engineering
Expert in generative art, creative coding, and mathematical visualizations using p5.js and JavaScript.
engineering
Generates LLM-optimized code context with function call graphs, side effect detection, and incremental updates. Processes JavaScript/TypeScript codebases to create compact semantic
engineering
Perform static analysis of malicious PDF documents using peepdf, pdfid, and pdf-parser to extract embedded JavaScript,
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Analyzes malicious PDF files using PDFiD, pdf-parser, and peepdf to identify embedded JavaScript, shellcode,
security
Advanced JavaScript animation library skill for creating complex, high-performance web animations.
engineering
Anthony Fu's opinionated tooling and conventions for JavaScript/TypeScript projects. Use when setting up new projects, configuring ESLint/Prettier alternatives, monorepos, library
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Use when need to bypass Cloudflare protection, scrape websites with anti-bot measures, render JavaScript pages, or simulate real browser behavior for web scraping
engineering
Modern JavaScript/TypeScript development with Bun runtime. Covers package management, bundling, testing, and migration from Node.js. Use when working with Bun, optimizing JS/TS dev
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Comprehensive JavaScript reference covering 33+ essential concepts every developer should know. From fundamentals like primitives and closures to advanced patterns like async/await
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Comprehensive software architecture skill for designing scalable, maintainable systems using ReactJS, NextJS, NodeJS, Express, React Native, Swift, Kotlin, Flutter, Postgres, Graph
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Build Slack apps using the Bolt framework across Python, JavaScript, and Java. Covers Block Kit for rich UIs, interactive components, slash commands, event handling, OAuth installa
engineering
TypeScript and JavaScript expert with deep knowledge of type-level programming, performance optimization, monorepo management, migration strategies, and modern tooling. Use PROACTI
engineering
Use when writing Apex that validates, extracts, or transforms strings with Pattern/Matcher or String regex methods. Covers catastrophic backtracking, 1M char input cap, anchored vs
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Apify SDK is the official JavaScript SDK for building Actors, crawlers, and data extraction workflows on Apify. It gives agents a structured way to run scraping jobs, store outputs
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ApostropheCMS is a full-stack Node.js CMS that combines in-context editing for content teams with headless flexibility for developers. It is a strong fit when teams want live-page
engineering
Generates production-grade Appium mobile automation scripts for Android and iOS in Java, Python, or JavaScript. Supports real device and emulator testing locally and on TestMu AI c
engineering
Expert in AppleScript and JavaScript for Automation (JXA) for macOS system scripting. Specializes in secure script execution, application automation, and system integration. HIGH-R
engineering
Instrument browser/web apps with the Application Insights JavaScript SDK (@microsoft/applicationinsights-web). Use for Real User Monitoring (RUM) — page views, clicks, AJAX/fetch d
engineering
Use jscodeshift when an agent needs AST-based JavaScript or TypeScript codemods for bulk migrations, API rewrites, and large refactors with reviewable diffs.
engineering
Astro is a modern web framework for building content-driven websites. It ships zero JavaScript by default, supports multiple UI frameworks (React, Vue, Svelte, Solid), and provides
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Expert in asynchronous programming patterns across languages (Python asyncio, JavaScript/TypeScript promises, C# async/await, Rust futures). Use for concurrent programming, event l
engineering
Master asynchronous JavaScript patterns including callbacks, promises, async/await, event loop mechanics, and real-world async patterns.
engineering
Universal coding standards and best practices for TypeScript, JavaScript, React, and Node.js. Use when: writing code, reviewing code quality, establishing conventions. Focuses on m
engineering
Complete guide for CloudBase Auth using the CloudBase Node SDK – caller identity, user lookup, custom login tickets, and server-side best practices.
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Automate detection and removal of duplicate files/functions in TypeScript, JavaScript, and Python projects. Safely refactor imports, validate with tests, and deploy changes with ze
engineering
Creates and manages CloudWatch alarms using the AWS SDK for JavaScript v3 (@aws-sdk/client-cloudwatch). Configures metric math expressions, composite alarms, and SNS notification r
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Runs CloudWatch Logs Insights queries via AWS SDK for JavaScript v3. Analyzes Lambda cold starts, API Gateway latency, and ECS container logs. Generates anomaly detection alarms wi
engineering
Manages AWS CodePipeline stages and actions using AWS SDK for JavaScript (CodePipeline, CodeBuild, CodeDeploy APIs). Automates blue-green deployments and cross-account pipeline con
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Build translation applications using Azure Translation SDKs for JavaScript (@azure-rest/ai-translation-text, @azure-rest/ai-translation-document). Use when implementing text transl
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Azure AI Voice Live SDK for JavaScript/TypeScript. Build real-time voice AI applications with bidirectional WebSocket communication.
engineering
Build applications using Azure App Configuration SDK for JavaScript (@azure/app-configuration). Use when working with configuration settings, feature flags, Key Vault references, d
ads
Azure Cosmos DB JavaScript/TypeScript SDK (@azure/cosmos) for data plane operations. Use for CRUD operations on documents, queries, bulk operations, and container management.
engineering
Build event streaming applications using Azure Event Hubs SDK for JavaScript (@azure/event-hubs). Use when implementing high-throughput event ingestion, real-time analytics, IoT te
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Authenticate to Azure services using Azure Identity SDK for JavaScript (@azure/identity). Use when configuring authentication with DefaultAzureCredential, managed identity, service
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Manage cryptographic keys using Azure Key Vault Keys SDK for JavaScript (@azure/keyvault-keys). Use when creating, encrypting/decrypting, signing, or rotating keys.
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Manage secrets using Azure Key Vault Secrets SDK for JavaScript (@azure/keyvault-secrets). Use when storing and retrieving application secrets or configuration values.
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Connect to Azure Database for PostgreSQL Flexible Server from Node.js/TypeScript using the pg (node-postgres) package.
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Build messaging applications using Azure Service Bus SDK for JavaScript (@azure/service-bus). Use when implementing queues, topics/subscriptions, message sessions, dead-letter hand
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Azure Blob Storage JavaScript/TypeScript SDK (@azure/storage-blob) for blob operations. Use for uploading, downloading, listing, and managing blobs and containers.
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Azure File Share JavaScript/TypeScript SDK (@azure/storage-file-share) for SMB file share operations.
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Azure Queue Storage JavaScript/TypeScript SDK (@azure/storage-queue) for message queue operations. Use for sending, receiving, peeking, and deleting messages in queues.
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Comprehensive expertise for Azure Static Web Apps including architecture, configuration, API integration with Azure Functions, authentication, routing, deployment, and CI/CD. Use w
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Build real-time messaging applications using Azure Web PubSub SDKs for JavaScript (@azure/web-pubsub, @azure/web-pubsub-client). Use when implementing WebSocket-based real-time fea
engineering
Generates Babel configuration for JavaScript transpilation in tests. Creates babel.config.js file.
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Generate Babel configuration files for JavaScript/TypeScript transpilation with presets and plugins. Triggers on "create babel config", "generate babel configuration", "babel setup
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Modern Node.js backend stack: NestJS/Hono, Drizzle ORM, Vitest, TypeScript. Use when: building Node.js APIs, TypeScript backends, or serverless functions. Triggers: "nestjs", "node
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Fast unit testing framework for TypeScript/JavaScript. Use for testing tRPC procedures, Zod schemas, utility functions, and any TypeScript code. Built on Vite with native ESM, Type
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Use for writing JavaScript/TypeScript code with the Base44 SDK in EXISTING projects. Triggers: user wants to implement features, build functionality, or write code using Base44; co
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Better Auth TypeScript/JavaScript authentication library. Use when implementing auth in Next.js, React, Express, or any TypeScript project. Covers email/password, OAuth, JWT, sessi
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Better Auth TypeScript/JavaScript authentication library. Use when implementing auth in Next.js, React, Express, or any TypeScript project. Covers email/password, OAuth, JWT, sessi
engineering
Use when formatting JavaScript/TypeScript code with Biome's fast formatter including patterns, options, and code style management.
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Biome is a high-performance Rust-based toolchain for JavaScript, TypeScript, JSX, JSON, CSS, and GraphQL that unifies formatting and linting in a single tool. With 97% Prettier com
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Use when applying Biome's linting capabilities, rule categories, and code quality enforcement to JavaScript/TypeScript projects.
engineering
Покрывает локализацию Bitrix — Bitrix\Main\Localization\Loc, языковые файлы lang/<код>/, loadMessages, плейсхолдеры в getMessage, Context::getCulture() и форматы культур, JS-локали
general
Comprehensive Blazor development expertise covering Blazor Server, WebAssembly, and Hybrid apps. Use when building Blazor components, implementing state management, handling routin
engineering
Scrape blog posts via RSS feeds (free, no API key) with Apify fallback for JS-heavy sites. Use when you need to monitor competitor blogs, track industry content, or aggregate blog
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JavaScript boolean-string coercion trap — "false" is truthy, JSON.parse or strict comparison required
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Scrape structured data with Bright Data Scraping Browser using Playwright/Puppeteer. Use when scraping JavaScript-rendered pages, SPAs, or sites requiring browser interaction. Trig
engineering
Minimal Chrome DevTools Protocol tools for browser automation and scraping. Use when you need to start Chrome, navigate pages, execute JavaScript, take screenshots, or interactivel
engineering
Minimal Chrome DevTools Protocol tools for browser automation and scraping. Use when you need to start Chrome, navigate pages, execute JavaScript, take screenshots, or interactivel
engineering
Debug client-side issues using browser developer tools. Identify JavaScript errors, styling issues, and performance problems in the browser.
engineering
Browser automation for documentation discovery. Use when curl fails on JS-rendered sites, when detecting available browser tools, or when configuring browser-based documentation co
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Defines target browser versions for CSS autoprefixing and JavaScript transpilation. Generates .browserslistrc configuration file.
engineering
Use n8n-MCP when an agent needs structured access to n8n nodes, properties, operations, and template examples while designing or debugging workflows, instead of guessing from raw d
engineering
BullMQ is the fastest, most reliable Redis-based distributed queue for Node.js, Python, Elixir, and PHP. It provides priority queues, rate limiting, delayed jobs, parent-child depe
engineering
Fast, modern JavaScript/TypeScript development with the Bun runtime, inspired by [oven-sh/bun](https://github.com/oven-sh/bun).
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Modern JavaScript/TypeScript development with Bun runtime. Covers package management, bundling, testing, and migration from Node.js. Use when working with Bun, optimizing JS/TS dev
engineering
Evaluate JavaScript at bundle time and inline results. Use when optimizing compile-time code generation, embedding files, inlining environment variables, or executing code during t
engineering
Bun package manager commands (install, add, remove, update), workspaces, lockfiles, npm/yarn/pnpm migration. Use for dependency management with Bun.
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Bun runtime patterns and best practices. Package management, bundling, testing, scripts. Use when working with Bun as the JavaScript runtime.
engineering
Analyze and optimize JavaScript bundle size, identify large dependencies, and improve load times. Use when bundles are large, investigating performance issues, or optimizing fronte
engineering
Analyzes JavaScript bundle sizes, identifies large dependencies, and suggests optimizations for webpack, vite, rollup. Use when user asks to "analyze bundle", "optimize bundle size
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Monitor JavaScript bundle size and execution performance. Use when tracking bundle size, identifying large chunks, or optimizing load performance.
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Reduce JavaScript and CSS bundle sizes through code splitting, tree shaking, and optimization techniques. Improve load times and overall application performance.
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How to write idiomatic assertions with the Bupkis assertion library for TypeScript and JavaScript
engineering
Optimiser les performances backend. Utiliser quand les temps de réponse sont dégradés ou pour ajouter node-cache.
engineering
Appliquer des stratégies de cache. Utiliser quand on optimise avec node-cache (backend) ou React.memo (frontend).
engineering
Runs Canva monorepo validation commands - pnpm fin, taz check, pnpm test, a11y storybook tests, typechecking, linting, and dependency fixes. Run before committing/pushing. Use when
general
CapRover is a self-hosted Platform-as-a-Service that automates Docker, Nginx, and LetsEncrypt to deploy applications and databases with minimal configuration. It provides a web GUI
engineering
An ASE skill built around the official Cartesia JavaScript SDK for text-to-speech and voice API workflows. It is a strong fit for agents that need programmatic voice generation, lo
content
Universal coding standards, best practices, and patterns for TypeScript, JavaScript, React, and Node.js development.
engineering
CCXT cryptocurrency trading library. Use for cryptocurrency exchange APIs, trading, market data, order management, and crypto trading automation across 150+ exchanges. Supports Jav
security
CCXT cryptocurrency exchange library for TypeScript and JavaScript developers (Node.js and browser). Covers both REST API (standard) and WebSocket API (real-time). Helps install CC
engineering
Checkly CLI lets agents define, test, and deploy synthetic monitoring from a JavaScript or TypeScript codebase. It is especially useful when monitoring should live next to Playwrig
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Cheerio is a long-running Node.js library for parsing and manipulating HTML and XML with a jQuery-like API. It is widely used in scraping, extraction, and content transformation pi
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Control Chrome browser programmatically using chrome-devtools-mcp. Use when user asks to automate Chrome, debug web pages, take screenshots, evaluate JavaScript, inspect network re
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Browser automation, debugging, and performance analysis using Puppeteer CLI scripts. Use for automating browsers, taking screenshots, analyzing performance, monitoring network traf
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Browser automation, debugging, and performance analysis using Puppeteer CLI scripts. Use for automating browsers, taking screenshots, analyzing performance, monitoring network traf
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Run and interpret pnpm lint, pnpm typecheck, pnpm build, and pnpm format in a Turborepo monorepo; diagnose CI-style failures; propose minimal diffs; and deliver a fix plan, files t
engineering
Use the ClawdHub CLI to search, install, update, and publish agent skills from clawdhub.com. Use when you need to fetch new skills on the fly, sync installed skills to latest or a
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Perform a "hard reset" of the development environment. Use when dependencies are corrupted, lockfiles are out of sync, or environment tools (Trunk/pnpm) are in an inconsistent stat
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Clerk’s JavaScript backend SDK gives agents a real server-side interface for auth and user management. It is useful for verifying sessions, fetching users, issuing invitations, and
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Frappe client-side JavaScript patterns for form events, field manipulation, dialogs, and UI customization. Use when writing form scripts, handling field changes, creating dialogs,
engineering
Connect Workers to PostgreSQL/MySQL with Hyperdrive's global pooling and caching. Use when: connecting to existing databases, setting up connection pools, using node-postgres/mysql
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Connect Workers to PostgreSQL/MySQL with Hyperdrive's global pooling and caching. Use when: connecting to existing databases, setting up connection pools, using node-postgres/mysql
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Set up Cloudflare Workers with Hono routing, Vite plugin, and Static Assets. Prevents 10 errors including export syntax, routing conflicts, Vite 8 nodejs_compat, base option regres
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Set up Cloudflare Workers with Hono routing, Vite plugin, and Static Assets. Prevents 10 errors including export syntax, routing conflicts, Vite 8 nodejs_compat, base option regres
engineering
Multi-language Workers development with Rust, Python, and WebAssembly. Use when building Workers in languages other than JavaScript/TypeScript, or when integrating WASM modules for
engineering
Analyze codebases for anti-patterns, code smells, and quality issues using ast-grep structural pattern matching. Use when reviewing code quality, identifying technical debt, or per
engineering
Code comment guidelines based on industry best practices. Use when reviewing code, writing new code, or when asked about comment quality. Applies to all languages but specializes i
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Add detailed comments explaining WHY code works, its context, edge cases, and performance implications. Use when user mentions "add comments", "document", "explain code", "improve
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Extract comment locations from code files for analysis. Use when cleaning comments, auditing code documentation, or analyzing comment patterns. Supports Python, JavaScript, TypeScr
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TSDoc standards for TypeScript/JavaScript code. Automatically invoked when writing, reviewing, or editing any TSDoc comments, code documentation, or API documentation. (project)
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TSDoc standards for TypeScript/JavaScript code. Automatically invoked when writing, reviewing, or editing any TSDoc comments, code documentation, or API documentation. (project)
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Comprehensive code documentation standards and guidelines for maintaining up-to-date documentation across Python, HTML, CSS, and JavaScript codebases. Use when creating or modifyin
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Technology-agnostic prompt generator that creates customizable AI prompts for scanning codebases and identifying high-quality code exemplars. Supports multiple programming language
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Automated code quality assistant that formats code, fixes syntax/type errors, detects bugs, and validates fixes across Python, JavaScript, TypeScript, Java, Go, and Rust
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Execute automatically formats and validates code files using Prettier and other formatting tools. Use when users mention "format my code", "fix formatting", "apply code style", "ch
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Execute automatically formats and validates code files using Prettier and other formatting tools. Use when users mention "format my code", "fix formatting", "apply code style", "ch
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Expert code reviewer that enforces best practices, clean code principles, strong typing (TypeScript), architecture guidelines, and security standards. Reviews PRs and code snippets
security
JavaScript-specific code review guidelines focusing on functional patterns and modern APIs
engineering
Comprehensive code review skill for TypeScript, JavaScript, Python, Swift, Kotlin, Go. Includes automated code analysis, best practice checking, security scanning, and review check
engineering
Run code snippets in 30+ programming languages including JavaScript, Python, TypeScript, Java, C, C++, Go, Rust, Ruby, PHP, and more. Use when the user wants to execute code, test
engineering
Generate and run unit and integration tests using pytest (Python) or Jest (JavaScript) with fixtures, mocks, and async support. Use for test-driven development, code review validat
engineering
Generates comprehensive, workable unit tests for any programming language using a multi-agent pipeline. Use when asked to generate tests, write unit tests, improve test coverage, a
engineering
Coding conventions enforcement agent. Auto-invoked when writing new code, reviewing code quality, adding headers, or checking documentation compliance across Python, TypeScript/Jav
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Enforce JavaScript/ES6+ and TypeScript coding standards including camelCase variables, PascalCase classes, and kebab-case filenames.
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Universal coding standards, best practices, and patterns for TypeScript, JavaScript, React, and Node.js development.
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ComfyUI node-based Stable Diffusion interface. GPU-accelerated image generation with custom node support and CivitAI model downloads. Use 'ujust comfyui' for configuration, lifecyc
engineering
Compare ERB and JavaScript template outputs for the offline scoring SPA. Use when working on ERB-to-JS conversion, debugging template parity issues, or verifying that changes to sc
engineering
Generate a UI component scaffold in the codebase's actual style. Reads dragoon.json to match framework (react/vue/svelte), styling layer (tailwind/css-modules/plain), language (typ
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Refactor high-complexity React components in Dify frontend. Use when `pnpm analyze-component --json` shows complexity > 50 or lineCount > 300, when the user asks for code splitting
engineering
Generate Drupal/Twig component skeletons with web components and Miyagi validation. Use when user requests to create, scaffold, or add a new component at a specific path (e.g., "ad
engineering
Code editing, syntax highlighting, and visual programming for Composable Svelte. Use when implementing code editors, syntax highlighting, or node-based visual programming. Covers C
engineering
End-to-end workflow for creating complete JavaScript concept documentation, orchestrating all skills from research to final review
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Extract speaker names, titles, companies, and bios from conference websites. Supports direct HTML scraping and Apify web scraper fallback for JS-heavy sites. Use for pre-event rese
sales
Validate config at startup, secrets in memory only. Never read config during requests, never store secrets in env vars. Use node-env-resolver for multi-source config.
engineering
Add configuration parameters following BobTheSkull's full-stack pattern (BobConfig.py, config_manager.py, HTML templates, JavaScript). Use when adding new config parameters, settin
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Use when setting up GitHub Actions CI/CD for pull request checks - provides workflow templates for Python, JavaScript, and polyglot projects that run quality gates on every PR
engineering
JavaScript/TypeScript stack configuration - pnpm, prettier, eslint, vitest with 96% coverage threshold
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Detects timing side-channel vulnerabilities in cryptographic code. Use when implementing or reviewing crypto code, encountering division on secrets, secret-dependent branches, or c
security
Comprehensive Contentful SDK guide for TypeScript/JavaScript. Covers Management SDK (CMA) for content/schema management, Delivery SDK (CDA) for fetching content, and App Framework
engineering
Token-efficient library documentation fetcher using Context7 MCP with 86.8% token savings through intelligent shell pipeline filtering. Fetches code examples, API references, and b
engineering
Battle-tested Playwright patterns for writing and debugging reliable E2E, API, component, visual, accessibility, and security tests. Use when you need locator strategy, assertions,
security
Use when implementing Salesforce CPQ plugin interfaces in Apex or JavaScript (JS QCP) to customize quote calculation, product search, order creation, contracting, or configuration
engineering
Garnish — Craft CMS's built-in JavaScript UI toolkit for the control panel. Covers the full Garnish surface: class system (Garnish.Base.extend, init, setSettings, addListener, on/o
security
Craft CMS 5 front-end Twig development — atomic design, template architecture, component patterns, Vite buildchain. Covers the full site template surface: atoms, molecules, organis
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Scaffold and implement authentication in TypeScript/JavaScript apps using Better Auth. Detect frameworks, configure database adapters, set up route handlers, add OAuth providers, a
engineering
Creates a frontend controller action in Magento 2 for the storefront. Use when building custom frontend pages, AJAX endpoints, form submission handlers, or API-like endpoints for J
engineering
Scaffold a production-ready Node.js API — choose Express TypeScript or NestJS, then select database, auth, and extras.
engineering
Create or update presentation notebooks with embedded HTML and JavaScript in markdown cells using EDS blocks. Convert executable code cells to informative text. Build presentations
engineering
Creates browser-executable JavaScript bookmarklets with strict formatting requirements. Use when users mention bookmarklets, browser utilities, dragging code to bookmarks bar, or n
engineering
Creates changesets for semantic versioning and automates release notes. Determines correct version bump type (patch/minor/major) and generates well-documented changelog entries. Tr
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Use when creating OpenCode plugins that hook into command, file, LSP, message, permission, server, session, todo, tool, or TUI events - provides plugin structure, event API specifi
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Conduct rigorous, adversarial code reviews with zero tolerance for mediocrity. Use when users ask to "critically review" my code or a PR, "critique my code", "find issues in my cod
engineering
Write JavaScript code in the style of Douglas Crockford, author of "JavaScript: The Good Parts". Emphasizes using only the reliable subset of JavaScript, avoiding problematic featu
engineering
Creates native CSS animations using keyframes, transitions, and modern animation properties. Use when building animations without JavaScript libraries, optimizing performance, or i
growth
Use when building or debugging a browser-based CTI softphone adapter using the Salesforce Open CTI JavaScript API — covers callcenter.xml definition, Lightning utility item registr
engineering
Comprehensive BDD testing with Cucumber and Gherkin syntax. Use when writing feature files (.feature), step definitions, hooks, or implementing Behaviour-Driven Development. Covers
engineering
Generates Cucumber BDD tests with Gherkin feature files and step definitions in Java, JavaScript, or Ruby. Use when user mentions "Cucumber", "Gherkin", "Feature/Scenario", "Given/
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Core JavaScript development standards covering ES modules, modern patterns, code quality, async programming, and tooling
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Standards for identifying, prioritizing, and verifying JavaScript code maintenance and refactoring work
engineering
Migrating Classic Custom Buttons (Detail Page Buttons, List Buttons, Mass Action Buttons) and JavaScript Buttons to Lightning Quick Actions, Screen Flow Actions, LWC Quick Actions,
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Create custom node definitions with renderers, ports, external data, and constraints. Use when implementing new node types, custom node appearances, or node-specific behaviors.
engineering
Generates production-grade Cypress E2E and component tests in JavaScript or TypeScript. Supports local execution and TestMu AI cloud. Use when the user asks to write Cypress tests,
engineering
Use when creating tree diagrams, force-directed networks, Voronoi diagrams, or hierarchical layouts. Invoke for org charts, node-link diagrams, treemaps, dendrograms, force simulat
engineering
Using data-* attributes as the HTML/CSS/JS bridge for state, variants, and configuration. Use when managing element state, styling variants, or configuring behavior without JavaScr
engineering
Language-specific debug logging patterns and best practices. Reference when adding instrumentation for Dart/Flutter, Kotlin/Android, Swift/iOS, or JavaScript/TypeScript application
engineering
Use PROACTIVELY when debugging React Native apps. Reads console logs and executes JavaScript in running apps via Metro bundler. Invoke for: app crashes, state inspection, API debug
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Classify gate call variants in a minified JavaScript bundle. Covers context-window extraction around a flag occurrence, identification of 4–6 reader variants (sync boolean, sync co
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Deno 2 development workflow including testing with permissions and JSR package management. Use when working with Deno projects, setting up new Deno applications, or when the user m
engineering
Deno integration. Manage data, records, and automate workflows. Use when the user wants to interact with Deno data.
engineering
Deobfuscates malicious JavaScript code used in web-based attacks, phishing pages, and dropper scripts by reversing
security
Detect and resolve package dependency conflicts before installation across npm/yarn/pnpm, pip/poetry, cargo, and composer. Auto-trigger when installing/upgrading packages. Validate
security
Scan project dependencies for known vulnerabilities (CVEs), auto-fix safe patches, and generate SBOM. Auto-detects all package managers in monorepos — npm (npm audit), yarn (yarn a
security
Check dependencies for vulnerabilities. Use when user asks to "audit dependencies", "/deps-audit", "check for vulnerabilities", or wants to check dependency health. Don't use for y
security
Detects typosquatting attacks in npm and PyPI package registries by analyzing package name similarity using
tools