Skills for Codex

209,768 that install into Codex. Same mod, same page, whichever agent you run: a URL per tool would split one page into five that compete.

mcp-server-design

1009

basementstudio/xmcp

Skill Claude CodeCodex

Guide for designing effective MCP servers with agent-friendly tools. Use when creating a new MCP server, designing MCP tools, or improving existing MCP server architecture.

not rated 1.3k 7d ago A SkillSpector: pass 35 tokens original MIT

wordpress-skill

1010

uluckyXH/OpenMOSS

Skill Claude CodeCodex

A command-line tool for managing a WordPress website's posts, pages, media, categories, tags, and search results. WordPress is a content-management system for publishing websites.

not rated 1.3k +3 2mo ago A SkillSpector: pass 29 tokens original MIT

codiff

1011

nkzw-tech/codiff

Skill Claude CodeCodex

Open Codiff for a narrative code walkthrough, a blocking plan handoff, or a shared walkthrough URL. Use when the user writes "$codiff", "/codiff", "$codiff plan", "$codiff share", "show me codiff", "open Codiff", or asks to review a change or edit a plan in Codiff.

not rated 1.3k +9 2d ago A SkillSpector: warn 72 tokens original MIT

sim-use

1012

lycorp-jp/sim-use

Skill Claude CodeCodex

Drive iOS Simulator, Android emulator/device, and physical iPhone/iPad screens for AI agents. Use when asked to automate a simulator or emulator, drive a real iOS device, tap/swipe/type on a device, describe UI, take a screenshot, or interact with a mobile app.

not rated 1.3k +11 changed 2d ago A SkillSpector: pass 62 tokens original Apache-2.0

markit

1013

shift-labs-ai/markit

Skill Claude CodeCodex

Convert files and URLs to Markdown. Supports PDF, DOCX, PPTX, XLSX, HTML, EPUB, CSV, JSON, GitHub URLs, images, audio, ZIP, and more. Use when you need to extract content from any document format.

not rated 1.3k 24d ago A 55 tokens original MIT

bilibili-rag-local

1014

via007/bilibili-rag

Skill Claude CodeCodex

A guide for querying a locally running service that stores and answers questions about saved Bilibili videos. Bilibili is a Chinese video platform, and RAG means retrieving relevant saved content before generating an answer.

not rated 1.3k +1 3d ago A SkillSpector: pass 72 tokens original Apache-2.0

acquisition-channels

1015

RefoundAI/lenny-skills

Skill Claude CodeCodex

Help users identify unique distribution advantages and master the lifecycle of acquisition channels to build a sustainable engine for growth and retention.

not rated 1.3k +9 1mo ago A SkillSpector: pass 28 tokens original MIT

agent_workdir

1016

BytedTsinghua-SIA/CUDA-Agent

Skill Claude CodeCodex

You are a PyTorch and CUDA expert. Accelerate the given PyTorch Model by creating a high-performance CUDA C++ extension, targeting the best possible performance with a minimum requirement of 5% faster than torch.compile baseline.

not rated 1.3k +10 2mo ago B 0 tokens

cinema-dna-21x9x3

1017

dacnay816y62-hub/cinema-dna-21x9x3

Skill Claude CodeCodex

A visual image-generation skill that turns people, places, products, buildings, history, mythology, science fiction, or simple stories into cinematic 21:9 images or three-panel scenes. It can also create named title treatments, text posters, and visual-system covers when explicitly requested.

not rated 1.3k +37 changed 4d ago A 142 tokens

todoist

1018

perminder-klair/subwave

Skill Claude CodeCodex

Pick ONE thing off the to-do list and dare somebody to go and do it — a quick, grinning nudge between records, not a reading of the list. Name the task, keep it to a sentence or two, and aim it at whoever is listening as much as at the person who wrote it: the bit that lands is "go on then, one song's worth, see if…

not rated 1.3k +13 yesterday A SkillSpector: warn 2 tokens original MIT

yao-open-skills-sync

1019

yaojingang/yao-open-skills

Skill Claude CodeCodex needs its repo

Manage the yao-open-skills public collection. Use this skill whenever the user wants to evaluate whether a local skill should be open sourced, import a local skill into the yao-open-skills repository, register which skills are already public, track GitHub sync status, or update the collection README and catalog after…

not rated 1.3k +1 13d ago A SkillSpector: pass 73 tokens original MIT

sceneview-ios

1020

sceneview/sceneview

Skill Codex

Build 3D and AR apps on Apple platforms (iOS, macOS, visionOS) with SceneViewSwift — the SwiftUI wrapper around RealityKit. Use whenever the user asks for "3D in SwiftUI", "AR with ARKit in SwiftUI", a model viewer for iOS, or any Apple-platform 3D/AR app where the dependency is the SceneViewSwift Swift Package from…

not rated 1.3k +4 changed 3d ago A SkillSpector: warn 148 tokens original Apache-2.0

steno

1021

stenolabs/stenoai

Skill Claude CodeCodex

Make the agent aware of the user's Steno meeting notes and able to pull them in on request. Steno (https://github.com/stenolabs/stenoai) records, transcribes, and summarizes meetings entirely on-device, storing each as a Markdown summary plus a transcript. This skill locates that store cross-platform (macOS, Windows…

not rated 1.3k +5 2d ago A SkillSpector: warn 300 tokens original MIT

科研可视化工具

1022

XiaoMaColtAI/math-modeling-skill

Skill Claude CodeCodex

A research-visualisation workflow for examining data and producing publication-ready charts for scientific papers.

not rated 1.4k +218 today A SkillSpector: pass 235 tokens

sast-fileupload

1023

utkusen/sast-skills

Skill Claude CodeCodex needs its repo

Detect insecure file upload vulnerabilities in a codebase using a three-phase approach: discovery (find all upload sites), batched verify (check extension bypass and related issues in parallel subagents, 3 sites each), and merge (consolidate batch results). Requires sast/architecture.md (run sast-analysis first).…

not rated 1.3k +8 5mo ago A SkillSpector: pass 92 tokens original MIT

build-backlinks

1024

onvoyage-ai/gtm-engineer-skills

Skill Claude CodeCodex

Finds free backlink and brand mention opportunities across Hacker News, Quora, GitHub, directories, and niche communities. Outputs a prioritized action plan with draft responses ready to post. Use after brand research and content creation to amplify reach and AI engine citations.

not rated 1.3k +4 3mo ago A SkillSpector: pass 55 tokens original MIT

waza

1025

microsoft/waza

Skill Claude CodeCodex ✓ vendor

WORKFLOW SKILL - Evaluate AI agent skills using structured benchmarks with YAML specs, fixture isolation, and pluggable validators. USE FOR: run waza, waza help, run eval, run benchmark, evaluate skill, test agent, generate eval suite, init eval, compare results, score agent, agent evaluation, skill testing…

not rated 1.3k +9 today A SkillSpector: pass 145 tokens original MIT

goey-toast

1026

anl331/goey-toast

Skill Claude CodeCodex

Install and use goey-toast — a gooey, morphing React toast component built on Sonner with Framer Motion. Use when adding toast/notification UI to a React app (success/error/warning/info/promise toasts), or when the user mentions goey-toast / gooey toast.

not rated 1.3k +4 5d ago A SkillSpector: warn 64 tokens original MIT

create-app-scaffold

1027

TanStack/cli

Skill Claude CodeCodex

Scaffold a TanStack app with tanstack create using --framework, --template, --toolchain, --deployment, --add-ons, --blank, and --router-only. Covers flag compatibility, non-interactive defaults, and intent-preserving command construction.

not rated 1.3k +1 4d ago A SkillSpector: warn 57 tokens original MIT

lab-report-walkthrough

1028

thetahealth/mirobody

Skill Claude CodeCodex

Walk a person through their lab report — read the original document, organize results by panel, flag out-of-range values against the printed reference ranges, compare with their history, and explain in plain language. Use when the user uploads a lab report (PDF/image) or asks what their blood test results mean.

not rated 1.3k +44 today A SkillSpector: pass 67 tokens original Apache-2.0

harness-creator

1030

higress-group/himarket

Skill Claude CodeCodex

Design and create AI-agent infrastructure for codebases: AGENTS.md, documentation architecture (docs/), linters with actionable errors (scripts/lint-), harness/ configs, and CI integration. Creates files directly — never writes business/application code.

not rated 1.3k +2 21d ago A 54 tokens

audit

1031

nateherkai/AIS-OS

Skill Codex

Use when someone asks to audit their AIOS, score the Four Cs, find stale paths or unlinked projects, compare AGENTS.md and CLAUDE.md, check Claude/Codex skill compatibility, or assess migration readiness. Automatically saves dated reports and tracks evidence-backed improvements across runs.

not rated 1.3k +165 changed 3d ago A 60 tokens

hung-yi-lee

1032

voidful/hung-yi-lee-skill

Skill Claude CodeCodex

A teaching skill for machine learning, deep learning, generative AI, large language models, AI agents, and speech modeling, using a structured, intuition-first approach.

not rated 1.3k +6 1mo ago A 84 tokens

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: