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. 273,368 indexed, measured the same four ways as everything else here.

debug

20401

kazhou/agents-toolkit

Skill Claude CodeCodex

Use when encountering any bug, test failure, or unexpected behavior, before proposing fixes.

not rated 4 7mo ago A 18 tokens

physlibsearch

20402

Kernel-Science/physlibsearch-skill

Skill Claude CodeCodex

Semantic search over Physlib, a formal Lean 4 library of physics theorems and definitions. Use when asked to find Lean 4 declarations related to physics or mathematics, look up formal proofs, retrieve theorem signatures, or browse the Physlib module hierarchy.

not rated 4 5mo ago A 56 tokens

android-finance-spec

20403

brycegao/android-finance-spec

Skill Codex

Use when generating, reviewing, or refactoring Android Kotlin code for financial apps that require BigDecimal/String precision, RTL/i18n safety, Kotlin style discipline, and "do not reinvent existing project patterns" constraints.

not rated 4 3mo ago A 48 tokens original MIT

constitution-skill

20404

CUHK-Business-School-AI-Hub/coding_agent_constitution

Skill Codex

Turn unclear software requirements into reusable project docs and a bounded next task. Use when the user needs to clarify product scope, architecture, or interface agreements before implementation, or explicitly requests project governance files. Skip already-scoped code changes unless governance updates are requested.

not rated 4 changed 24d ago A 55 tokens original MIT

mac-assed-mac-app

20405

HunterHillegas/mac-assed-mac-app-skill

Skill Codex

Design, audit, and improve desktop macOS app UI: menus, windows, keyboard and selection behavior, native controls, UI text, and expressive identity. Use for AppKit, SwiftUI-on-Mac, Catalyst, or other Mac app surfaces; excludes iOS-only and web-only UI work.

not rated 4 changed 12d ago A 67 tokens original MIT

deslop-code

20406

the-hooman-loop/anti-slop-kit

Skill Claude CodeCodex

Removes AI-generated code slop (redundant comments, over-engineering, verbose names, boilerplate, dead defensive code) and normalizes style. Use when the user asks to clean up code, remove AI slop, de-slop, fix code style, refactor for readability, or make code more idiomatic.

not rated 4 1mo ago A 71 tokens original MIT

swarm-mcp

20407

alexpriest/swarm-mcp

MCP server Claude CodeCodexCursor +2

MCP server for Foursquare Swarm check-in data. Runs locally from the swarm-mcp Python package.

not rated 4 today A tokens not measured original MIT

repo-social-poster

20408

daliaabbruciati/awesome-claude-skills-by-dalia

Skill Claude CodeCodex needs its repo

Automazione condivisibile che trasforma repository GitHub (starred o indicate a mano) in una bozza di post social, PARTENDO SEMPRE da un'intervista su 4 punti, repo da usare, tono del testo, se creare eventi calendario, e target/piattaforma di pubblicazione, pubblica SOLO dopo approvazione esplicita. Generica e…

not rated 4 1mo ago A 213 tokens original MIT

RonasIT/open-webui-mcp-server-python

MCP server Claude CodeCodexCursor +2

MCP server "open-webui-knowledge-mcp-server" as configured in RonasIT/open-webui-mcp-server-python. Runs locally from the open-webui-knowledge-mcp-server Python package.

not rated 4 6mo ago A tokens not measured original MIT

pato-gonzalez/design-system-stack

Skill Claude CodeCodex

Applied workflow skill for producing Awwwards-caliber animated landing pages using Claude Design as the orchestrator, with motionsites.ai (animated backgrounds), higgsfield.io or Kling 3 (AI animation generation), Dribbble (component inspiration), shots.so (animation showcase/video edit), and land-book (landing page…

not rated 4 5mo ago A 157 tokens

gen3-mcp

20411

delocalizer/gen3-mcp

MCP server Claude CodeCodexCursor +2

MCP server "gen3-mcp" as configured in delocalizer/gen3-mcp. Runs locally from the gen3-mcp Python package.

not rated 4 1y ago A tokens not measured original MIT

mcp-sandbox-toolkit

20412

shibingli/mcp-toolkit

MCP server Claude CodeCodexCursor +2

A cross-platform sandboxed file system operations toolkit based on Model Context Protocol (MCP). Runs locally from the mcp-sandbox-toolkit Python package.

not rated 4 9mo ago A tokens not measured

secret-shuttle

20413

pdumicz/secret-shuttle

Skill Claude CodeCodex

Use when an AI coding agent must provision, inject, run, or rotate secrets without ever seeing their plaintext — you work with ss:// refs (like ss://stripe/prod/STRIPEWEBHOOKSECRET) while a local daemon resolves the real value at the last possible moment.

not rated 4 3mo ago A 60 tokens original MIT

code-review

20414

SebaBoler/vanguard

Skill Claude CodeCodex

Use when reviewing a code change or diff for correctness, security, missing tests, and convention violations before opening or approving a PR. Review independently and adversarially, then fix high-confidence issues.

not rated 4 today A 42 tokens original MIT

python-engineer

20415

JohannWilfridCalixte/agentic

Skill Claude CodeCodex

Use when writing Python code - covers typing, error handling, style, imports, and patterns.

not rated 4 4mo ago A 22 tokens

startup-kit

20416

duolahypercho/startup-kit

Skill Codex

Cross-agent full-stack startup kit for building skill UIs and shippable products. ALWAYS run onboarding FIRST — never scaffold or build until you have interviewed the user (product, scope, style, theme, background animations, architecture, data, auth, payments, launch, deploy) or loaded their stored answers, and…

not rated 4 4mo ago A 301 tokens

quality-check

20417

Crearize/ai-dev-helm

Skill Claude CodeCodex needs its repo

A required pre-merge quality gate that runs local static checks, tests, and reviews. A merge is allowed only after the checks pass.

not rated 4 changed yesterday A SkillSpector: warn 82 tokens original MIT

agent-cli-design

20418

wakaka6/agent-cli-playbook

Skill Claude CodeCodex

A methodology for designing command-line tools for AI agents. A command-line tool is a program operated through typed commands; these rules focus on discoverable help, structured output, useful errors, safe operations, and reliable retries.

not rated 4 6mo ago A 51 tokens original MIT

founders-playbook

20419

zhangxiaoqiang1991/founders-playbook

Skill Claude CodeCodex

A guided navigation tool for founders building companies around artificial intelligence. It uses a founder-focused playbook to identify the situation and point to a relevant next step.

not rated 4 4mo ago A 134 tokens original MIT

protected-commit

20420

harshanandak/forge

Skill Claude CodeCodex

Use when a commit is refused with "Protected state edit detected", or before editing AGENTS.md, CLAUDE.md, a lockfile, .forge/config.yaml, .github/workflows, lefthook.yml, .beads/, or a generated harness mirror. Do not use to find a way around the gate — there is no environment variable that authorizes a protected…

not rated 4 5d ago A 82 tokens original MIT

uber-interpret

20421

agtm1199/uber-polya

Skill Claude CodeCodex

Use when the user wants to "interpret results", "explain the solution", "what does this mean", "translate to business language", "present findings", "sensitivity analysis", "what-if analysis", "how robust is this", "visualize the result", "make a recommendation", or needs to translate a mathematical solution back into…

not rated 4 7mo ago A 104 tokens original Apache-2.0

flog-inspect

20422

shaominngqing/flog

Skill Codex

Use when a user asks an agent to inspect Flutter app logs, network traffic, SSE/WebSocket streams, current page state, screenshots, or debugging context through flog instead of copying from the TUI.

not rated 4 2mo ago A 45 tokens original MIT

check-work

20423

codingmydna/grokers

Skill Claude CodeCodex

Check your work with a verification subagent that reviews diffs, runs builds and tests, and evaluates correctness. Read this file for instructions. Use when asked to "check work", "verify changes", "self-verify", "/check-work", "/check", "/verify", or "/self-verify".

not rated 4 2mo ago A 64 tokens copy · 100% Apache-2.0

english-assessment

20424

z-Zihan/awesome-skills

Skill Claude CodeCodex

An English-level assessment assistant that tests university-level English from CEFR B1 to C2, where CEFR is a common scale for language ability.

not rated 4 3mo ago A 258 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: