25 tools that work with JavaScript: 8 MCP servers, 17 Agent Skills and 0 Claude Code plugins. 0 of the remote servers answered our live check, 0 worked without an API key, and 0 come from an official or verified publisher. Ranked by GitHub stars plus official, live and free-to-try signals.
Most common uses: Code search, analysis, refactoring & languages (22), Testing & QA (2), Code & dependency scanning (1).
| Tool | Stars | Last update | License | |
|---|---|---|---|---|
| javascript-testing-patterns Implement comprehensive testing strategies using Jest, Vitest, and Testing Library for unit tests, integration tests, and end-to-end testing with mock SkillInstall · skills CLI | 42,495 | MIT | ||
| modern-javascript-patterns Master ES6+ features including async/await, destructuring, spread operators, arrow functions, promises, modules, iterators, generators, and functional SkillInstall · skills CLI | 42,495 | MIT | ||
| gsap-core Official GSAP skill for the core API — gsap.to(), from(), fromTo(), easing, duration, stagger, defaults, gsap.matchMedia() (responsive, prefers-reduce SkillInstall · skills CLI | 18,423 | MIT | ||
| gsap-performance Official GSAP skill for performance — prefer transforms, avoid layout thrashing, will-change, batching. Use when optimizing GSAP animations, reducing SkillInstall · skills CLI | 18,423 | MIT | ||
| gsap-plugins Official GSAP skill for GSAP plugins — registration, ScrollToPlugin, ScrollSmoother, Flip, Draggable, Inertia, Observer, SplitText, ScrambleText, SVG SkillInstall · skills CLI | 18,423 | MIT | ||
| gsap-scrolltrigger Official GSAP skill for ScrollTrigger — scroll-linked animations, pinning, scrub, triggers. Use when building or recommending scroll-based animation, SkillInstall · skills CLI | 18,423 | MIT | ||
| gsap-timeline Official GSAP skill for timelines — gsap.timeline(), position parameter, nesting, playback. Use when sequencing animations, choreographing keyframes, SkillInstall · skills CLI | 18,423 | MIT | ||
| gsap-utils Official GSAP skill for gsap.utils — clamp, mapRange, normalize, interpolate, random, snap, toArray, wrap, pipe. Use when the user asks about gsap.uti SkillInstall · skills CLI | 18,423 | MIT | ||
| javascript-pro Writes, debugs, and refactors JavaScript code using modern ES2023+ features, async/await patterns, ESM module systems, and Node.js APIs. Use when buil SkillInstall · skills CLI | 12,355 | MIT | ||
| error-translator 编程错误消息翻译专家 — 将英文错误消息翻译成中文，解释原因并提供修复方案 SkillInstall · skills CLI | 909 | MIT | ||
| package-security-check Run a reusable JavaScript supply-chain security baseline with pnpm-first hardening, release-age gating, lifecycle-script controls, exotic dependency c SkillInstall · skills CLI | 140 | — | ||
| fallow Codebase intelligence for TypeScript and JavaScript. Static analysis reports changed-code risk, cleanup opportunities, duplication, circular dependenc SkillInstall · skills CLI | 139 | MIT | ||
| fallow-cloud-setup Connect a JavaScript or TypeScript app to Fallow Cloud production runtime coverage. Use when asked to set up Fallow Cloud, add the Fallow beacon, send SkillInstall · skills CLI | 139 | MIT | ||
| fallow-mutation Mutation testing for TypeScript and JavaScript with `fallow mutation`. Use when asked to improve, strengthen or check the tests of a change, a PR, a b SkillInstall · skills CLI | 139 | MIT | ||
| fallow-review Review AI-generated or human-written code changes with fallow's graph-grounded review brief. Subtracts deterministic concerns (unused code, complexity SkillInstall · skills CLI | 139 | MIT | ||
| fallow-setup Set up or modernize code-quality tooling for JavaScript and TypeScript projects. Use when creating a project, adding code-health or CI quality checks, SkillInstall · skills CLI | 139 | MIT | ||
| spatie-javascript Apply Spatie's JavaScript coding standards for any task that creates, edits, reviews, refactors, or formats JavaScript or TypeScript code; use for var SkillInstall · skills CLI | 100 | MIT | ||
| Madar Authenticated local evidence paths for JavaScript and TypeScript coding agents. MCP serverGitHub-verified authorLocal · npm | 21 | MIT | ||
| io.github.MasonChow/source-map-parser-mcp Parse JavaScript error stack traces back to original source code using source maps MCP serverGitHub-verified authorLocal · npm | 2 | MIT | ||
| io.github.radwanalmsora/devlens-mcp Production TypeScript & JavaScript AST code analysis and risk assessment MCP server. MCP serverGitHub-verified authorLocal · npm | — | — | ||
| io.github.sergii-ziborov/weavatrix-js Always-fresh local repo graph: LSP-backed impact, Health, dead code, endpoints, architecture. MCP serverGitHub-verified authorLocal · npm | 0 | MIT | ||
| io.github.sergii-ziborov/weavatrix-refactor-js Transactional refactoring MCP with 11 evidence-backed tools, hash-bound previews, and rollback. MCP serverGitHub-verified authorLocal · npm | 0 | MIT | ||
| JS Reverse MCP MCP server for JavaScript reverse engineering and browser debugging. MCP serverGitHub-verified authorLocal · npm | — | — | ||
| JS Reverse MCP MCP server for JavaScript reverse engineering and browser debugging. MCP serverGitHub-verified authorLocal · npm | — | — | ||
| Regex Safety Audit Detects catastrophic-backtracking (ReDoS) regex risk via AST parsing, with JS-safe rewrites. MCP serverGitHub-verified authorRemoteDown | 0 | MIT |