javascript for Codex

713 mods tagged javascript that install into Codex, measured the same four ways as everything else here: what each costs in tokens on every session, what a security scan found and why, whether it is the original, and what changed.

Also for Codex: anthropic · Git and workflow · Web3 and blockchain · React · Python · TypeScript · openai · android · docker · Localization · bun · Go

remotion-markup

01

remotion-dev/remotion

Skill Codex

Content, animation and effects best practices.

not rated 59k +368 changed today A SkillSpector: warn 12 tokens

draft-release-notes

02

prisma/orm

Skill Claude CodeCodex ✓ vendor

Author the committed release-notes file for a Prisma 8 release (stable or 8.0.0-rc.N) by enumerating the merged PRs since the previous release v tag (stable or -rc.N), resolving opaque TML-NNNN: titles via Linear context (never copied verbatim), triaging public-worthiness, and writing categorized notes — breaking…

not rated 48k +21 today A Snyk: warnSkillSpector: pass 174 tokens original Apache-2.0

audio-and-sound

03

phaserjs/phaser

Skill Claude CodeCodex

Use this skill when adding audio or sound to a Phaser 4 game. Covers loading audio, playing sounds, music, volume, spatial audio, Web Audio API, and SoundManager. Triggers on: sound, audio, music, volume, mute.

not rated 40k +20 18d ago A ✓ AI review Socket: passSnyk: passSkillSpector: warn 56 tokens original MIT

turborepo

04

vercel/turborepo

Skill Claude CodeCodex needs its repo ✓ vendor

Turborepo monorepo build system guidance. Triggers on: turbo.json, task pipelines, dependsOn, caching, remote cache, the "turbo" CLI, --filter, --affected, CI optimization, environment variables, internal packages, monorepo structure/best practices, and boundaries. Use when user: configures tasks/workflows/pipelines…

not rated 31k +9 today A Socket: passSnyk: passSkillSpector: warn 111 tokens original MIT

factory-rereview

05

mastra-ai/mastra

Skill Claude CodeCodex

Re-review a pull request after a push — reconcile the previous review against the new commits, look for new defects the push introduced, then a fresh pass over the whole PR, and finish with a verdict on the PR.

not rated 28k +72 changed 7d ago A SkillSpector: warn 48 tokens

adr-skill

06

vercel/ai

Skill Claude CodeCodex ✓ vendor

Create and maintain Architecture Decision Records (ADRs) optimized for agentic coding workflows. Use when you need to propose, write, update, accept/reject, deprecate, or supersede an ADR; bootstrap an adr folder and index; consult existing ADRs before implementing changes; or enforce ADR conventions. This skill uses…

not rated 27k +86 today A Socket: passSnyk: passSkillSpector: warn 89 tokens

migrate-oxfmt

07

oxc-project/oxc

Skill Claude CodeCodex

Guide for migrating a project from Prettier or Biome to Oxfmt. Use when asked to migrate, convert, or switch a JavaScript/TypeScript project's formatter from Prettier or Biome to Oxfmt.

not rated 23k +30 today A Socket: passSnyk: warnSkillSpector: warn 53 tokens original MIT

qiankun

08

umijs/qiankun

Skill Claude CodeCodex

Usage manual for building micro-frontend projects with qiankun 3.x. Use when the user wants to create a qiankun main (host) app or sub (micro) app, convert an existing Vite app into a qiankun micro app, or wire up micro-frontend loading with React/Vue.

not rated 17k +7 9d ago A SkillSpector: pass 69 tokens original MIT

node-crawler

09

bda-research/node-crawler

Skill Claude CodeCodex

Node.js web crawler for production-grade, large-scale tasks — NOT for simple one-off requests. Use only when: bulk scraping, batch downloading, multi-page crawling, long-running spiders, or complex multi-step workflows that need connection pooling, rate limiting, proxy rotation, automatic retries, and Cheerio parsing.…

not rated 6.8k +2 2mo ago A SkillSpector: pass 115 tokens original MIT

preline-mcp

10

htmlstreamofficial/preline

Skill Codex

Add, integrate, or build Preline UI components and blocks into HTML files via the Preline MCP server. Use when the user mentions "preline", says "/preline", asks to add a UI component, or requests a Preline block (a ready-made page section) using Preline UI.

not rated 6.4k +2 8d ago A SkillSpector: warn 66 tokens

Tencent/puerts

Skill Claude CodeCodex ✓ vendor

Guide for developing LLM agents based on PuerTsAgent framework — covers resource directory structure, system-prompt, skills, builtin modules, and best practices.

not rated 6.2k +6 3d ago A SkillSpector: warn 39 tokens

build-with-tinybase

12

tinyplex/tinybase

Skill Codex

Scaffold, extend, and verify reactive local-first JavaScript or TypeScript applications with TinyBase. Use when choosing TinyBase for in-memory tabular or key-value state, generating an app with create-tinybase, adding schemas or UI bindings, configuring browser or database persistence, configuring MergeableStore…

not rated 5.2k +6 5d ago A SkillSpector: pass 76 tokens original MIT

eve

13

vercel/eve

Skill Claude CodeCodex ✓ vendor

Build durable backend AI agents with the eve framework. Use when creating, editing, or debugging an eve project — agent instructions, skills, tools, connections, channels, sandboxes, subagents, schedules, or evals.

not rated 5.0k +46 today A Socket: warnSnyk: warnSkillSpector: warn 47 tokens copy · 89% Apache-2.0

taro-ui-guide

14

jd-opensource/taro-ui

Skill Claude CodeCodex

Guides installation, Taro config, styling, and usage of taro-ui (At components) for WeChat/Alipay/H5/RN. Use when building Taro apps with taro-ui, picking components, theming, i18n, or modifying packages/taro-ui source.

not rated 4.7k +1 1mo ago A SkillSpector: pass 66 tokens original MIT

ax-agent

15

ax-llm/ax

Skill Claude CodeCodex

This skill helps an LLM generate correct core AxAgent code using @ax-llm/ax. Use when the user asks about agent(), child agents, namespaced functions, discovery mode, clarification, bubbleErrors, host-side final/clarification protocol, or ordinary agent runtime behavior. For MCP clients, native runtime modules…

not rated 2.9k +3 changed yesterday A SkillSpector: pass 131 tokens original Apache-2.0

task-manager

16

iamlukethedev/Claw3D

Skill Claude CodeCodex

Capture actionable user requests as persistent tasks, update task status as work progresses, and keep a shared task store in sync. Use when a user asks an agent to do work, check progress, block a task, complete a task, or manage the Kanban board.

not rated 2.2k +4 18d ago A SkillSpector: warn 56 tokens original MIT

dynamic-archify

17

Unclecheng-li/AI_Animation

Skill Claude CodeCodex

Create professional architecture, workflow, sequence, data-flow, and lifecycle/state diagrams as standalone animated HTML files with SVG graphics, flowing animation effects, a built-in dark/light theme toggle, and one-click export to PNG / JPEG / WebP / SVG / GIF / WebM. Accepts plain-language descriptions or pasted…

not rated 1.2k +37 9d ago A SkillSpector: pass 163 tokens original MIT

wakaru

18

pionxzh/wakaru

Skill Claude CodeCodex

Turn minified, bundled, or transpiled JavaScript back into readable modules. Use when you encounter unreadable production JS — a webpack/esbuild/Metro/Rollup bundle, a minified vendor script, Babel/TypeScript/SWC-transpiled output, or a single mangled .js file — and need to read, audit, debug it, or recover a…

not rated 984 +5 today A SkillSpector: warn 99 tokens original Apache-2.0

THREE.Terrain

19

IceCreamYou/THREE.Terrain

Skill Claude CodeCodex

Use this guide when an agent must build, modify, inspect, or document a terrain scene with THREE.Terrain. The library creates heightmapped Three.js terrain and provides procedural generators, filters, material blending, decoration tools, grass, image conversion, analysis, and seeded randomness.

not rated 897 +1 11d ago A 0 tokens original MIT

npm-security

20

bodadotsh/npm-security-best-practices

Skill Claude CodeCodex

Prevent JavaScript/TypeScript projects from supply-chain attacks across package managers like npm, pnpm, yarn, bun, and deno. Use whenever planning, installing, updating packages or configuring package managers.

not rated 858 +2 14d ago A SkillSpector: warn 43 tokens original MIT

menu-migration

21

asmyshlyaev177/react-horizontal-scrolling-menu

Skill Claude CodeCodex

Detect and upgrade pre-v8 react-horizontal-scrolling-menu patterns that agents trained on older data still generate: destructured visibleElements/isFirstItemVisible/isLastItemVisible/initComplete (removed v6), Separator items, separatorClassName and getPrevItem/getNextItem (removed v7), the Arrows prop (removed v3)…

not rated 788 3d ago A SkillSpector: warn 160 tokens original MIT

hot-monitor

22

liyupi/yupi-hot-monitor

Skill Claude CodeCodex

A tool for finding trending topics and recent developments across search engines, news and community platforms.

not rated 708 +4 4mo ago A 125 tokens

alpacahq/alpaca-trade-api-js

Skill Claude CodeCodex

Integrate and build on the @alpacahq/alpaca-trade-api TypeScript SDK for the Alpaca Trading and Market Data APIs (the unified Alpaca client, ergonomic order builders, normalized market-data shapes, pagination, typed errors, resilience, and real-time streaming). Use when writing or reviewing code that imports…

not rated 601 5d ago A SkillSpector: pass 123 tokens original Apache-2.0

AfterEffectsMCP

24

Dakkshin/after-effects-mcp

MCP server Claude CodeCodexCursor +2

MCP server "AfterEffectsMCP" as configured in Dakkshin/after-effects-mcp. Runs C:\Users\Daniel\Downloads\after-effects-mcp\build\index.js with node.

not rated 597 +10 5mo ago A tokens not measured original MIT

At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: