Everything for Codex

Skills, prompts, AGENTS.md files and MCP servers that Codex reads. Skills are shared with Claude Code; the rest is Codex-native. 267,051 indexed, measured the same four ways as everything else here.

shuttle

5209

grarcht/Shuttle

MCP server Claude CodeCodexCursor +2

MCP server "shuttle" as configured in grarcht/Shuttle. Launched with mcp/run.sh.

not rated 87 1mo ago A tokens not measured original MIT

add-cucumber-tests

5210

Decathlon/tzatziki

Skill Claude CodeCodex

Generates Tzatziki-based Cucumber BDD tests (.feature files) from a functional specification. Use this skill whenever a user wants to write Cucumber tests, add BDD scenarios, create feature files, generate tests, or test application behaviors with Gherkin — especially in Java/Spring projects using Tzatziki step…

not rated 87 changed 5d ago A Socket: passSnyk: passSkillSpector: pass 130 tokens original Apache-2.0

google-scholar-mcp

5211

Byron993/google_scholar_mcp

MCP server Claude CodeCodexCursor +2

An MCP server for searching and retrieving articles from Google Scholar. Runs locally from the google-scholar-mcp Python package.

not rated 87 1y ago A tokens not measured original MIT

prompt-optimizer

5212

Jamkris/everything-gemini-code

Skill Claude CodeCodex

Analyze raw prompts, identify intent and gaps, match ECC components (skills/commands/agents/hooks), and output a ready-to-paste optimized prompt. Advisory role only — never executes the task itself. TRIGGER when: user says "optimize prompt", "improve my prompt", "how to write a prompt for", "help me prompt", "rewrite…

not rated 87 +1 3mo ago A 179 tokens original MIT

ml-paper-writing

5213

raphaelmansuy/edgecrab

Skill Claude CodeCodex

Write publication-ready ML/AI papers for NeurIPS, ICML, ICLR, ACL, AAAI, COLM. Use when drafting papers from research repos, structuring arguments, verifying citations, or preparing camera-ready submissions. Includes LaTeX templates, reviewer guidelines, and citation verification workflows.

not rated 87 +2 1mo ago A 65 tokens

vasilyu1983/AI-Agents-public

Skill Codex

Consumer-neuroscience primitives for attention, arousal, bonding, narrative, memory, and reward. Use when shaping ethical UX, neuro study design, or DMCC/AI Act gates.

not rated 87 13d ago A SkillSpector: warn 46 tokens original MIT

openacme-platform

5215

sandydasari/openacme

Skill Claude CodeCodex

How OpenAcme is laid out — data dir, agents, skills, MCP servers, tasks, memory, the peer-notes convention. Read this when the user asks you to manage their workforce, set up an agent, install a skill, configure an MCP server, or explain how the platform works.

not rated 86 +1 1mo ago A SkillSpector: warn 66 tokens original MIT

harness-auto-paper

5216

linzhe001/Harness-Research

Skill Codex

Build, revise, audit, or rebut a research manuscript from Harness Research evidence. Use for paper intake, related-work research, claim and citation control, section architecture, LaTeX patching, figure planning, reviewer response, or final manuscript hardening when the workspace contains Harness research artifacts.

not rated 86 1mo ago A 63 tokens

bind-cpp

5217

FranciscoThiesen/mirror_bridge

Skill Claude CodeCodex

Generate Python/Lua/JavaScript bindings for C++ classes using mirrorbridge (C++26 reflection, zero boilerplate). Use when the user asks to make C++ code callable from Python/Lua/JS, to "bind" a C++ class or library, to replace pybind11 boilerplate, or to regenerate bindings after C++ header changes.

not rated 86 2d ago A SkillSpector: warn 76 tokens original Apache-2.0

mcp

5218

keboola/mcp-server

MCP server Claude CodeCodexCursor +2

MCP server for interacting with Keboola Connection. Runs locally from the keboola-mcp-server Python package.

not rated 86 today A tokens not measured original MIT

delphi-uses-graph

5219

MaxiDonkey/DelphiGenAI

Skill Claude CodeCodex

Analyzes a Delphi / Object Pascal codebase to extract unit-level uses dependencies. Use when the user uploads a zip / archive of a Delphi project, or a folder of .pas / .dpr / .dpk files, and asks for a dependency graph, architecture map, cycle detection, fan-in / fan-out coupling analysis, or wants to know how units…

not rated 86 3mo ago A 105 tokens original MIT

top-down-typescript

5220

paleo/alignfirst

Skill Claude CodeCodex

TypeScript and JavaScript coding style conventions, centered on top-down narrative ordering (caller first, helpers below) and functions over classes. Read before writing or reviewing TypeScript/JavaScript code, including code inside a spec or a plan.

not rated 86 yesterday A SkillSpector: pass 53 tokens original CC0-1.0

airbnb-ui-skills

5221

ihlamury/design-skills

Skill Claude CodeCodex

Airbnb's UI design system. Use when building interfaces inspired by Airbnb's aesthetic - light mode, Inter font, 4px grid.

not rated 87 +1 7mo ago A 34 tokens

verify

5222

andforce/Openclaude

Skill Claude CodeCodex

verify from andforce/Openclaude.

not rated 86 +1 1mo ago A 0 tokens

api-authentication

5223

stefan-jansen/claude-code-toolkit

Skill Claude CodeCodex

API authentication patterns including JWT, OAuth 2.0, API keys, and session-based auth. Covers token generation, validation, refresh strategies, security best practices, and when to use each pattern. Use when implementing API authentication, choosing auth strategy, securing endpoints, or debugging auth issues.…

not rated 86 +1 2mo ago A SkillSpector: warn 77 tokens original MIT

arkts-syntax-assistant

5224

SummerKaze/skill-arkts-syntax-assistant

Skill Claude CodeCodex

ArkTS syntax, migration, and optimization guide for HarmonyOS/OpenHarmony development. Triggers on: .ets files, ArkTS keywords, HarmonyOS/OpenHarmony context, @ohos packages. Help with syntax reference, TypeScript migration, performance optimization, compile errors, state management, component development, and…

not rated 86 +1 7mo ago A 71 tokens original MIT

promptguard

5225

mturac/promptguard

Skill Codex

Audit system prompts, agent prompts, router prompts, tool/function-call prompts, and coding-agent instructions as executable contracts. Use before writing or seeding prompts; blocks vague "fix this / write code" tasks missing ownership and verification. Works with Hermes, Claude Code, Codex, OpenCode, OpenClaw.

not rated 86 1mo ago A SkillSpector: pass 66 tokens original MIT

openrouter-multimodal

5226

stabgan/openrouter-mcp-multimodal

MCP server Claude CodeCodexCursor +2

Chat with 300+ LLMs via OpenRouter. Analyze and generate images, audio, and video from MCP. Runs locally from the @stabgan/openrouter-mcp-multimodal npm package. Needs 13 environment variables to run.

not rated 87 today A tokens not measured original Apache-2.0

five-whys

5227

tkellogg/open-strix

Skill Claude CodeCodex

Structured root cause analysis for arriving at a concrete action. Use when something went wrong, a pattern keeps recurring, behavior has drifted, or you catch yourself resolving to "do better" / "remember to X" without a concrete artifact. Five-whys forces behavioral resolutions into file edits, config changes, memory…

not rated 86 +1 1mo ago A SkillSpector: warn 96 tokens original MIT

criar-skill

5228

okjpg/skill-creator

Skill Claude CodeCodex

Cria um SKILL.md completo para Claude Code a partir de qualquer workflow, sessão executada ou ideia nova. Acionar quando o usuário pedir para criar, montar, construir ou salvar uma skill — mesmo que não use a palavra "skill". Triggers: "cria uma skill", "transforma isso em skill", "quero automatizar esse processo"…

not rated 86 +1 6mo ago A 174 tokens original MIT

hookdeck/webhook-skills

Skill Claude CodeCodex

Receive and validate Azure Event Grid webhook deliveries. Use when setting up an Event Grid WebHook event handler, implementing the Microsoft.EventGrid.SubscriptionValidationEvent handshake (echo data.validationCode as validationResponse with HTTP 200), implementing the CloudEvents v1.0 HTTP OPTIONS abuse-protection…

not rated 86 +2 yesterday A SkillSpector: warn 148 tokens original MIT

elements

5230

NVIDIA/elements

MCP server Claude CodeCodexCursor +2 ✓ vendor

NVIDIA Elements UI design system and agent tools for AI/ML, robotics, and autonomous vehicles. Runs locally from the @nvidia-elements/cli npm package.

not rated 86 +1 today A tokens not measured original Apache-2.0

keep-awake

5231

gyorgysh/keepresso

Skill Claude CodeCodex

Keep this Mac awake while long unattended work runs, using Keepresso's bounded automation leases (acquire, heartbeat, release). Use before long builds, renders, downloads, test suites, or overnight agent tasks so the machine cannot sleep mid-task, and release when done so it can sleep again.

not rated 88 +2 yesterday A 63 tokens GPL-3.0

ipsw

5232

blacktop/ipsw-skill

Skill Claude CodeCodex needs its repo

Use this skill when reverse-engineering Apple platforms with the ipsw CLI — analyzing iOS/macOS Mach-O binaries, disassembling functions inside dyldsharedcache (DSC), dumping Objective-C/Swift headers from private frameworks, extracting kernelcaches, KEXTs, SEP, iBoot, or DeviceTree from IPSWs/OTAs…

not rated 87 +2 4mo ago A 178 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: