Language
JavaScript agent skills for Claude Code, Codex and other agents.
- skills
- 748
- official
- 82
- Type
- Language
- Website
- developer.mozilla.org
JavaScript skills, ranked
Ranked by score. Sort bymost stars,trending,newest,recently updated
| # | Skill | Repository | Stars | Used in | Tokens | Auto-check | Licence | Updated |
|---|---|---|---|---|---|---|---|---|
| 1 | A skill your agent uses when writing code that calls the Gemini API for text generation, multi-turn chat, multimodal understanding, image generation, video generation, speech generation (TTS), voice… | google-gemini/ | 4.3k | — | ~5.1k | Automated safety check: Pass | Apache-2.0 | today |
| 2 | Scans a codebase for vulnerabilities with CodeQL's data flow and taint tracking in run-all or important-only modes, including data extensions for project-specific sources and sinks. | trailofbits/ | 7.4k | — | ~4.6k | Automated safety check: Notes | CC-BY-SA-4.0 | 5 days ago |
| 3 | A skill your agent uses when building real-time, bidirectional streaming applications with the Gemini Live API, or migrating legacy Live models (2.0/2.5/3.1) to Gemini 3.8 Live. | google-gemini/ | 4.3k | — | ~4.6k | Automated safety check: Pass | Apache-2.0 | today |
| 4 | Work with the QStash JavaScript/TypeScript SDK for serverless messaging, scheduling. | upstash/ | 269 | 1 repo | ~746 | Automated safety check: Pass | MIT | yesterday |
| 5 | Code-quality standards for RedisInsight: TypeScript strictness, naming conventions (camelCase, PascalCase, UPPERSNAKECASE), linting rules, no any without reason, no !important in styles, and… | redis/ | 8.9k | — | ~1.2k | Automated safety check: Pass | Unknown | 2 days ago |
| 6 | Use MSAGL-JS (Microsoft Automatic Graph Layout) to lay out and visualize networks in JavaScript or TypeScript. | microsoft/ | 174 | — | ~1.2k | Automated safety check: Pass | MIT | 5 days ago |
| 7 | A skill your agent uses when adding, debugging, fixing, or modifying instrumentation and plugins for third-party libraries in dd-trace-js. | DataDog/ | 836 | — | ~3k | Automated safety check: Pass | Unknown | today |
| 8 | Quickly compare the posthog-js array.js bundle size in the current working tree against a git baseline using the repository's esbuild proxy. | PostHog/ | 613 | — | ~599 | Automated safety check: Pass | Unknown | today |
| 9 | Author a new PostHog browser extension, or port a posthog-js v1 extension, against the @posthog/browser-common Client/Extension contract. | PostHog/ | 613 | — | ~2.3k | Automated safety check: Pass | Unknown | today |
| 10 | Structured performance opportunity investigation for SpiderMonkey (the Firefox JavaScript engine). | SAP/ | 180 | 1 repo | ~4.1k | Automated safety check: Pass | GPL-3.0 | yesterday |
| 11 | Cross-reference a posthog-js or rrweb change against past incident patterns before writing, reviewing, or merging it. | PostHog/ | 613 | — | ~1.1k | Automated safety check: Pass | Unknown | today |
| 12 | Sync model types from SAP Notes 3437766. An agent skill from SAP/ai-sdk-js. | SAP/ | 126 | — | ~2.4k | Automated safety check: Pass | Apache-2.0 | today |
| 13 | How to write JavaScript workflow scripts for the workflow tool - fanning work out across many isolated subagents with agent(), parallel(), and pipeline(), then synthesizing one result. | PostHog/ | 179 | — | ~2.3k | Automated safety check: Pass | MIT | 2 mo ago |
| 14 | Review a spec-update branch — classify breaking changes, write [compat] changesets, and fix parameter-order patches. | SAP/ | 126 | — | ~3.1k | Automated safety check: Pass | Apache-2.0 | today |
| 15 | Help users debug PostHog Error Tracking stack-trace symbolication for any supported platform — JavaScript/TypeScript web, React Native (Hermes), Android (Proguard / R8), or iOS / macOS (dSYM). | PostHog/ | 721 | — | ~2.2k | Automated safety check: Pass | MIT | today |
| 16 | Bumps an existing Python dependency in getsentry/sentry through the repository's self-serve GitHub Actions workflow. | getsentry/ | 45k | — | ~815 | Automated safety check: Pass | Unknown | today |
| 17 | Review Sentry React and TypeScript changes for bug patterns drawn from real production issues. | getsentry/ | 45k | — | ~2.6k | Automated safety check: Notes | Unknown | today |
| 18 | Runs pre-trained Hugging Face models in JavaScript or TypeScript with Transformers.js, in browsers or Node.js, Bun and Deno, for text, vision, audio and multimodal tasks. | huggingface/ | 11k | 1 repo | ~6.2k | Automated safety check: Pass | Apache-2.0 | 6 days ago |
| 19 | Triage new issues in the Sentry javascript project by archiving non-actionable noise. | getsentry/ | 1k | — | ~2k | Automated safety check: Pass | Apache-2.0 | 4 days ago |
| 20 | Add Pydantic Logfire observability to application code — traces, logs, metrics, and AI/agent spans. | pydantic/ | 140 | — | ~6.1k | Automated safety check: Pass | MIT | 6 days ago |
| 21 | Establish MSBuild/.NET build performance baselines before optimizing. | dotnet/ | 5.6k | 1 repo | ~3.6k | Automated safety check: Pass | MIT | today |
| 22 | Add, configure, or review Ignite UI for Blazor Lite component support in Blazor applications. | dotnet/ | 5.6k | 1 repo | ~1.4k | Automated safety check: Pass | MIT | today |
| 23 | Add, review, or fix JavaScript interop in Blazor components. | dotnet/ | 5.6k | 1 repo | ~2.7k | Automated safety check: Pass | MIT | today |
| 24 | Creates, edits, and manages Power Pages Server Logic files — server-side JavaScript that runs securely on the Power Pages runtime. | microsoft/ | 967 | — | ~18k | Automated safety check: Notes | MIT | today |
| 25 | Build AI applications using Azure AI Projects SDK for JavaScript (@azure/ai-projects). | microsoft/ | 3.1k | 6 repos | ~1.9k | Automated safety check: Pass | MIT | today |
| 26 | Azure AI Voice Live SDK for JavaScript/TypeScript. An agent skill from microsoft/skills. | microsoft/ | 3.1k | 6 repos | ~3.4k | Automated safety check: Pass | MIT | today |
| 27 | Azure Cosmos DB JavaScript/TypeScript SDK (@azure/cosmos) for data plane operations. | microsoft/ | 3.1k | 6 repos | ~3k | Automated safety check: Pass | MIT | today |
| 28 | Build event streaming applications using Azure Event Hubs SDK for JavaScript (@azure/event-hubs). | microsoft/ | 3.1k | 6 repos | ~1.9k | Automated safety check: Pass | MIT | today |
| 29 | Manage secrets using Azure Key Vault Secrets SDK for JavaScript (@azure/keyvault-secrets). | microsoft/ | 3.1k | 6 repos | ~1.7k | Automated safety check: Pass | MIT | today |
| 30 | Azure Blob Storage JavaScript/TypeScript SDK (@azure/storage-blob) for blob operations. | microsoft/ | 3.1k | 6 repos | ~3.3k | Automated safety check: Pass | MIT | today |
| 31 | Dependabot and security analysis skill for HASTE. An agent skill from microsoft/haste. | microsoft/ | 106 | — | ~1k | Automated safety check: Pass | MIT | 4 days ago |
| 32 | Audits existing tests in any language using formal, research-backed test smell names and the testsmells.org 19-smell academic taxonomy. | dotnet/ | 5.6k | 1 repo | ~2.5k | Automated safety check: Pass | MIT | today |
| 33 | Compiles cryptographic code and inspects the assembly or bytecode for variable-time instructions, then triages which flagged operations actually touch secrets. | trailofbits/ | 7.4k | — | ~3.3k | Automated safety check: Notes | CC-BY-SA-4.0 | 5 days ago |
| 34 | Manage cryptographic keys using Azure Key Vault Keys SDK for JavaScript (@azure/keyvault-keys). | microsoft/ | 3.1k | 5 repos | ~1.7k | Automated safety check: Pass | MIT | today |
| 35 | Build messaging applications using Azure Service Bus SDK for JavaScript (@azure/service-bus). | microsoft/ | 3.1k | 5 repos | ~1.8k | Automated safety check: Pass | MIT | today |
| 36 | Instrument applications with Azure Monitor and OpenTelemetry for JavaScript (@azure/monitor-opentelemetry). | microsoft/ | 3.1k | 6 repos | ~2.2k | Automated safety check: Pass | MIT | today |
| 37 | Azure Queue Storage JavaScript/TypeScript SDK (@azure/storage-queue) for message queue operations. | microsoft/ | 3.1k | 6 repos | ~3.5k | Automated safety check: Pass | MIT | today |
| 38 | Perform language and framework specific security best-practice reviews and suggest improvements. | trailofbits/ | 512 | 9 repos | ~2.2k | Automated safety check: Notes | CC-BY-SA-4.0 | 2 mo ago |
| 39 | Build applications using Azure App Configuration SDK for JavaScript (@azure/app-configuration). | microsoft/ | 3.1k | 5 repos | ~2.2k | Automated safety check: Pass | MIT | today |
| 40 | Azure File Share JavaScript/TypeScript SDK (@azure/storage-file-share) for SMB file share operations. | microsoft/ | 3.1k | 5 repos | ~3.2k | Automated safety check: Pass | MIT | today |
| 41 | Write, debug, and optimize Adobe Illustrator automation scripts using ExtendScript (JavaScript/JSX). | github/ | 40k | 1 repo | ~8.8k | Automated safety check: Pass | MIT | today |
| 42 | Reviews and migrates deprecated wildcard () values in Power Pages Web API fields site settings to least-privilege explicit Dataverse columns. | microsoft/ | 967 | — | ~5.3k | Automated safety check: Notes | MIT | today |
| 43 | Bundle TypeScript and JavaScript libraries with blazing-fast speed powered by Rolldown. | JetBrains/ | 363 | 6 repos | ~3k | Automated safety check: Pass | MIT | 3 mo ago |
| 44 | Comprehensive guide for setting up and configuring CodeQL code scanning via GitHub Actions workflows and the CodeQL CLI. | github/ | 40k | 1 repo | ~3.4k | Automated safety check: Pass | MIT | today |
| 45 | A skill your agent uses whenever the user wants to build scroll animations, scroll effects, parallax, scroll-triggered reveals, pinned sections, horizontal scroll, text animations, or any motion… | github/ | 40k | 1 repo | ~1.6k | Automated safety check: Pass | MIT | today |
| 46 | Develop AI-powered applications using Genkit in Node.js/TypeScript. | google/ | 21k | 1 repo | ~3.1k | Automated safety check: Pass | Apache-2.0 | today |
| 47 | Upgrade the Sentry JavaScript SDK across major versions. An agent skill from getsentry/sentry-for-ai. | getsentry/ | 268 | — | ~2.1k | Automated safety check: Pass | Apache-2.0 | today |
| 48 | Expert skill for building web-based game engines and games using HTML5, Canvas, WebGL, and JavaScript. | github/ | 40k | 1 repo | ~1.6k | Automated safety check: Pass | MIT | today |
Questions, answered from the data.
What is the best JavaScript skill?
Gemini API Dev (official) from google-gemini/gemini-skills ranks first of the 748 JavaScript skills listed here, with the highest score: its repository has 4.3k GitHub stars, its SKILL.md loads about 5.1k tokens and it passes the automated safety check with no findings. Next come CodeQL Security Scan and Gemini Live API Dev.
Is there an official JavaScript skill?
82 of the 748 JavaScript skills are official, published by the vendor's own GitHub organization: Gemini API Dev, CodeQL Security Scan, Gemini Live API Dev, Qstash JS, Code Quality and 77 more.
How are these skills ranked?
By Skill Navigator score, which combines the GitHub stars of the skill's repository (shared across that repo's skills and discounted for large collections), how many other GitHub owners carry a copy of the skill, and automated SKILL.md quality checks, minus penalties for safety-check warnings and for each further skill from the same repository. Skills that fail the safety check are not listed.