Skills for Codex

215,155 that install into Codex. Same mod, same page, whichever agent you run: a URL per tool would split one page into five that compete.

plotnine

11689

has2k1/plotnine-skill

Skill Claude CodeCodex

Generate, refine and export data visualizations using plotnine. Use this skill when the user asks to create plots or charts with plotnine. Also use when customizing themes, applying colorblind-safe palettes, reshaping data for plotting with plotnine, or saving figures to PNG/PDF/SVG/JPEG.

not rated 9 5mo ago A 64 tokens original MIT

codebase-context

11690

airowe/codebase-context-skill

Skill Claude CodeCodex

Generates a codebase-context.md file that provides pre-built context for AI agents. This skill analyzes your project structure, patterns, and conventions to create a comprehensive context document that reduces token usage and improves agent effectiveness. Use when setting up a new project for AI-assisted development…

not rated 9 7mo ago A 67 tokens original MIT

frontend-ui-engineering

11691

lumpinif/frontend-ui-engineering

Skill Codex

Modern frontend UI engineering guidelines for building and reviewing clear, accessible, maintainable product interfaces. Use when creating, modifying, or reviewing UI components, pages, layouts, HTML, CSS, JavaScript, TypeScript, accessibility, responsive behavior, interaction states, motion, performance, or frontend…

not rated 9 4mo ago A 65 tokens

asr-transcription

11692

bleakbelladonnals/asr-transcription-skills

Skill Claude CodeCodex

A guide for testing speech-to-text systems, which turn recordings into written words, and for building batch transcription workflows. It covers comparing recording hardware, transcription services, and AI-generated meeting notes.

not rated 9 1mo ago A 124 tokens original MIT

sloemo01/hermes-skills-bundle

Skill Claude CodeCodex

World-class prompt analyzer v3: multi-modal, predictive, self-improving, context-aware, with real-time cost estimation, counterfactual reasoning, cross-session learning, adversarial testing, and autonomous optimization.

not rated 9 2mo ago A 49 tokens original MIT

pmxt

11694

pmxt-dev/molt-pmxt

Skill Claude CodeCodex

Grants the agent real-time access to prediction markets (Polymarket, Kalshi, Limitless) for fact-checking, probability analysis, and order execution.

not rated 9 7mo ago A 36 tokens copy · 98% MIT

4d-v21

11695

Ganbin/4d-development-skill

Skill Claude CodeCodex

Comprehensive 4D v21 development expert with embedded official documentation. Covers ORDA patterns, entity classes, data model classes, queries, classic methods, data types, error handling, forms, events, web server, and REST API. Use when working with 4D files (.4dm), 4D language questions, 4D project structure…

not rated 9 7mo ago A 180 tokens original MIT

moneyclaw

11696

elvismusli/moneyclaw

Skill Codex

Inspect a MoneyClaw wallet, create bounded payment tasks, and continue user-confirmed payment steps using a prepaid account. Use only when the user clearly asks to use MoneyClaw for their own payments.

not rated 9 6mo ago A 45 tokens copy · 100% MIT

dujiaxi2359-cloud/digital-human-workbench

Skill Codex

A workflow for making authorized digital-human videos: talking-head videos generated from a script, portrait, and voice sample. It includes voice cloning with MiniMax and video creation with HeyGen, including image-to-video and photo-avatar workflows.

not rated 9 1mo ago A 93 tokens

goal-loop

11698

lamenting-hawthorn/SkillLoop

Skill Claude CodeCodex

The /goal pattern: cron jobs that run until an objective condition is met, checked by an independent model (maker/checker split). Source: loop engineering framework by 0xCodez / Anthropic evaluator-optimizer pattern.

not rated 9 2mo ago A 49 tokens original Apache-2.0

magi

11699

float1122/magi-system

Skill Claude CodeCodex

Emulates Evangelion's MAGI trinity by splitting decisions into three persona cores — MELCHIOR (scientist/logic), BALTHASAR (mother/safety), CASPER (individual/intuition) — each dispatched as parallel subagents that recursively decompose into variable-sized judgment nodes (10–20 total, groups of 3), self-verify…

not rated 9 2mo ago A 151 tokens original MIT

guide-mentor

11700

alphaparkinc/genpark-skill-guide-mentor

Skill Claude CodeCodex

Guide Mentor — Proactive project management agent that provides high-stakes guidance, iterative feedback, and strategic oversight for complex, long-running projects.

not rated 9 5mo ago A 32 tokens

github-hardening

11701

CaseyLabs/kc-secure-repo-template

Skill Claude CodeCodex

Use when updating or reviewing GitHub-side hardening guidance for derived repositories, including required settings, rulesets, scanning, review protections, and workflow permissions. Use terraform-hardening instead for Terraform-backed changes under config/infra. Do not use for ordinary in-repo implementation changes…

not rated 9 19d ago A 70 tokens

openclaw

11702

edimuj/vexscan

Skill Claude CodeCodex

Scans extensions, skills, and code for security threats: prompt injection, malicious code, obfuscation, data exfiltration. Also scans inbound messages for injection patterns automatically.

not rated 9 5mo ago A 0 tokens original Apache-2.0

codex-harness-mcp

11703

chapzin/codex-harness-mcp

Skill Codex

Use this skill when a user wants Codex CLI or another MCP-compatible coding client to work through a harness-engineering loop with explicit execution contracts, persistent local knowledge/RAG, durable traces, structured verification evidence, project-local governance policy, PASS/FLAG/BLOCK governance audits…

not rated 9 4mo ago A 232 tokens original MIT

ai-knot

11704

alsoleg89/ai-knot

Skill Codex

Deterministic, self-hosted long-term memory for AI agents. Trigger when the user wants persistent memory, MCP-backed assistant memory, or wants to integrate ai-knot into Python, CrewAI, LlamaIndex, AutoGen, the OpenAI Agents SDK, PydanticAI, LangChain/LangGraph, TypeScript, or HTTP services. This is the default…

not rated 9 2mo ago A 89 tokens original MIT

upjack-app-builder

11705

NimbleBrainInc/upjack

Skill Claude CodeCodex

Builds complete, compliant NimbleBrain Upjack apps from natural language descriptions. Generates manifest, entity schemas, skills, context, seed data, and server entry point. Use when creating a new Upjack app, building an AI-native app, or scaffolding a domain-specific application. Triggers include "create me a todo…

not rated 9 5mo ago A 92 tokens original Apache-2.0

pentest-findings

11706

jayelbotvibe-web/hermes-pentest-lab

Skill Claude CodeCodex needs its repo

Pentest finding interpretation encyclopedia — maps tool output to finding severity, CVSS scoring rules, and report-ready language. Answers 'What severity is this? What's the CVSS? How do I write this up?'.

not rated 9 1mo ago A SkillSpector: warn 47 tokens original MIT

fetchira

11707

ImmuneFOMO/fetchira

Skill Claude CodeCodex

Use Fetchira for current web search, URL reading, deep research, JavaScript page reading, image generation, and provider quota routing. Prefer its listed MCP tools and use the CLI only when MCP is unavailable.

not rated 9 changed 15d ago A 45 tokens original Apache-2.0

cities2-mod-debugging

11708

mayor-modder/Cities2-MCP

Skill Codex

Use when debugging Cities: Skylines II mod build failures, packaging failures, runtime errors, game logs, UI debugger issues, or mod behavior that does not work in game.

not rated 9 8d ago A 41 tokens original MIT

deep-reasoning

11709

AP3X-Dev/AG3NT

Skill Claude CodeCodex

Structured multi-step reasoning tool for complex problem solving with branching, hypothesis testing, and evidence tracking.

not rated 9 4mo ago A 24 tokens original MIT

writing-humanizer

11710

manfromtunis/melek-skills

Skill Claude CodeCodex

You are a writing editor that identifies and removes signs of AI-generated text to make writing sound more natural and human. Based on Wikipedia's "Signs of AI writing" guide + crowd-sourced YouTube research from creators with 2.2M+ combined views.

not rated 9 3mo ago A 0 tokens

xcatcher

11711

lvpiggyqq/xcatcher-mcp-manifest

Skill Codex

Fetch fresh or recent public X (Twitter) posts from one or many named account handles through Xcatcher, with structured JSON results and optional x402 v2 USDC pay-per-crawl access on Base. Use for account monitoring, social intelligence, OSINT, tweet/post collection, timeline snapshots, or requests to scrape, crawl…

not rated 9 1mo ago A 86 tokens 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: