Skills, prompts, AGENTS.md files and MCP servers that Codex reads. Skills are shared with Claude Code; the rest is Codex-native. 272,320 indexed, measured the same four ways as everything else here.
newcore-network/opencore-ai-skills
Skill Claude CodeCodex
OpenCore framework best practices - bootstrap, controllers, imports, security, events, adapters, validation, runtime constraints. Use this skill when writing, reviewing, refactoring, or explaining code built with @open-core/framework and related OpenCore adapters. Trigger on any question about OpenCore, CitizenFX…
Skill Codex
Manage stacked branches and pull requests with the gh-stack GitHub CLI extension. Use when the user wants to create, push, rebase, sync, navigate, or view stacks of dependent PRs. Triggers on tasks involving stacked diffs, dependent pull requests, branch chains, or incremental code review workflows.
iamBrzDev/enterprise-agent-skills
Skill Claude CodeCodex
Implements enterprise-grade testing strategies for .NET applications using xUnit, Moq, FluentAssertions, and WebApplicationFactory. Use when writing unit tests, integration tests, or API tests in .NET or C#, configuring test projects, deciding what to mock vs what to test with real dependencies, setting up shared test…
Skill Claude CodeCodex
Assists with memory analysis and forensics using MemProcFS. Use when analyzing memory dumps, investigating system activity, or performing forensic examinations.
Skill Claude CodeCodex
A collection of best practices and tips for developing applications using Vue.js. This skill MUST be apply when developing, refactoring or reviewing Vue.js or Nuxt projects.
LichAmnesia/unreal-engine-agent-skills
Skill Claude CodeCodex
Separate authoritative gameplay state from cosmetic presentation in UE5, and keep gameplay decisions from reading values that a decoration is allowed to modify — sockets moved by animation or IK, meshes offset by suspension or sway, camera transforms carrying shake and lag, interpolated or smoothed proxies, and…
Skill Codex
A proposal process for improving a reusable coding skill or the rules that decide when an agent uses it. It uses repeated failures, user feedback, and test results to suggest bounded improvements without applying them.
Skill Claude CodeCodex
Game-development PM method for turning game vision into Experience, Mainstays, Features, Levels, Tasks, Iters, heatmaps, MVP scope, and validation plans.
WenXuanHe/how-to-ask-questions-skill
Skill Codex
A question-planning guide that turns vague requests into clear, answerable questions using methods such as the Mom Test, five whys, and first-principles thinking.
StuMinch/sauce-labs-agent-skills
Skill Claude CodeCodex
Sauce Labs VDC capability authoring skill for desktop and virtual devices. Use when asked to generate or validate W3C/Appium capabilities for Sauce Labs.
Skill Claude CodeCodex
Build, configure, and extend HermesPet — a native macOS AI companion living in the Dynamic Island with multi-engine support, desktop pets, and advanced system integration.
dungnotnull/household-geothermal-heating-agent-skill
Skill Claude CodeCodex
Household Geothermal Heating System Design & Operation — Small-Scale Geothermal Heat Pump Engineering evidence-backed analysis harness. Use for geothermal system design, heat pump sizing, ground loop design, COP/economics analysis, and O&M planning. Triggers on: geothermal design, heat pump sizing, ground loop, GSHP…
chenxihuang1028-a11y/timepress-video
Skill Codex
A workflow for turning Chinese articles, scripts, product ideas, or process descriptions into short browser-based timeline videos. It supports motion explainers built with HTML, SVG, or GSAP, a JavaScript animation library.
dungnotnull/handmade-paper-agro-waste-agent-skill
Skill Claude CodeCodex
Handmade Paper Production from Agricultural Waste — Professional-grade evidence-backed analysis harness for handmade paper and agro-fiber processing. Use this skill whenever users mention handmade paper, agricultural waste processing, paper production from agro-fibers, straw pulping, bagasse paper, banana fiber paper…
Skill Claude CodeCodex
FASE 9 del pipeline de Planitor. Dual-LLM: Modelo A (analítico) evalúa desde perspectiva analítica-rigurosa y Modelo B (creativo) desde perspectiva estratégica-creativa. Planitor sintetiza ambas evaluaciones en un JUDGE-REPORT.json final con auto-fix. Incluye validación fiscal, scoring de completitud y feedback…
manyue001/Bilingual-Paper-Reading-Skill
Skill Codex
Use this skill to turn a research paper PDF into a bilingual Chinese-English LaTeX review report. The report must prioritize the paper's own content, extract the truly important ideas, explain methods and representative comparison models, and assess reproducibility.
dungnotnull/base-building-trap-defense-design-agent-skill
Skill Claude CodeCodex
Trap & Defense System Design for Base-Building Games — evidence-backed analysis harness with layered defense (L0-L5), trap-synergy chains, cost-coverage efficiency frontier, and PvP counter-play reasoning. Trigger on: base defense, trap systems, raid protection, chokepoint design, funneling, base layout analysis, PvP…
Skill Claude CodeCodex
A preliminary check of a Git repository's local and remote state before work begins. It looks for uncommitted changes and differences between the current branch and its remote branch.
MCP server Claude CodeCodexCursor +2
A local stock-data assistant built with the Model Context Protocol (MCP), a standard way for an AI assistant to call external tools. It runs through the Python package smart-financial-mcp.
dungnotnull/esports-fairness-scoring-agent-skill
Skill Claude CodeCodex
Main harness skill for Esports Tournament Fairness & Integrity Scoring comprehensive analysis. Use when user requests fairness assessment, integrity evaluation, tournament scoring, match-fixing risk analysis, or esports tournament governance evaluation. This skill orchestrates multiple specialized sub-agents to…
dungnotnull/brainstorming-idea-to-project-deeply
Skill Claude CodeCodex
Use this skill whenever a user wants to: evaluate whether an idea is worth building, run a feasibility study, determine if a project has legs, assess the viability of a startup concept, get a go/no-go recommendation backed by evidence, analyze market opportunity for a product, estimate the real cost and timeline of a…
dungnotnull/game-install-size-optimization-agent-skill
Skill Claude CodeCodex
Game Install Size Optimization harness - production-grade asset pipeline & install-size analysis. Use when optimizing game install size, reducing download/storage, implementing compression/streaming/dedup, or analyzing game asset distribution. Triggers on: game install size, asset compression, download optimization…
dungnotnull/game-highlight-video-compression-agent-skill
Skill Claude CodeCodex
Skill "game-highlight-video-compression-agent-skill" from dungnotnull/game-highlight-video-compression-agent-skill, covering skill.md - skill registry, 1. two-layer model, 2. skill registration & resolution, registration and resolution.
dungnotnull/smart-city-ewaste-recycling-agent-skill
Skill Claude CodeCodex
E-Waste Management & Recycling Advisor for Smart Cities — Comprehensive Urban E-Waste Management & Circular Electronics analysis harness with real-time data aggregation, academic research integration, and risk-disclosed recommendations. Use this skill whenever the user asks about e-waste management, urban recycling…
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: