Skills for Codex

216,278 that install into Codex. Same mod, same page, whichever agent you run: a URL per tool would split one page into five that compete.

mage-review

18001

caravanglory/magehub

Skill Claude CodeCodex

Magento 2 structured code review workflow with Fix-First mode, confidence scoring, covering DI, security, performance, frontend, API, caching, and database domains. Run before every merge.

not rated 2 3mo ago A 41 tokens original MIT

spec-driven-dev

18002

mrtblount/Spec-to-Ship

Skill Claude CodeCodex

Spec-Driven Development protocol that runs before every new project or major feature. Creates structured, LLM-optimized specifications that enable one-shot implementation. Guides through 4 sequential phases: Specify, Plan, Tasks, Implement. Detects when specs are needed vs. when to just build. After spec creation…

not rated 2 2mo ago A 237 tokens original MIT

test-tui

18003

cbusillo/code

Skill Claude CodeCodex

Repo-local guide for testing the Every Code TUI interactively, including live-terminal visibility limits, VT100 snapshot evidence, restart dogfooding, and how to avoid overclaiming visual verification.

not rated 2 1mo ago A 43 tokens original Apache-2.0 archived

silk-local-change-submit

18004

lin-shui/silk_v2

Skill Claude CodeCodex

Use in this repository after local edits when an agent is asked to commit, push, open or update a PR, or prepare a submit handoff. Enforces Silk-specific docs sync, validation reporting, and commit/PR title naming.

not rated 2 1mo ago A 53 tokens

altai-cli

18005

altaidevorg/altai-app

Skill Claude CodeCodex

Use the ALTAI terminal product to run agents, inspect durable workspace state, and automate safe coding workflows through human-readable or JSONL output.

not rated 2 today A 33 tokens original Apache-2.0

webhook-system

18006

blunotech-dev/agents

Skill Claude CodeCodex

Build a production-grade outbound webhook system with retries, signing, failure tracking, and re-delivery. Use when implementing webhook delivery, event subscriptions, or handling webhook failures and reliability.

not rated 2 4mo ago A 40 tokens

marketplace-dev

18007

dylan/claude

Skill Claude CodeCodex

Use when working in this plugin marketplace repository — adding plugins, updating skills or hooks, editing marketplace config, syncing versions, or making any code changes.

not rated 2 changed 11d ago A 34 tokens

CreateDer/agents

Skill Claude CodeCodex

Comprehensive guide for building high-performance, type-safe web applications with ElysiaJS framework. Covers plugin architecture, schema validation, lifecycle hooks, authentication patterns, database integration, and Bun runtime optimization. Use when building REST APIs, microservices, or backend applications with…

not rated 2 3mo ago A 86 tokens

skill-creator

18009

zcxGGmu/CodeInsights

Skill Claude CodeCodex

Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, edit, or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.

not rated 2 3mo ago A 64 tokens

symbiosis-public-mcp

18010

symbiosis-finance/symbiosis-public-mcp

Skill Claude CodeCodex

Symbiosis is a universal swap protocol and DEX aggregator. It can swap absolutely any token for any other token, on the same chain or across different chains. This includes.

not rated 2 1mo ago A 0 tokens

mt4-mcp

18011

mergeos-bounties/mt4-mcp

Skill Claude CodeCodex

MetaTrader 4 account/quotes/orders (mock + live bridge). CLI mt4-mcp + MCP stdio serve. Use when the user mentions mt4-mcp, /mt4-mcp, or related domain work. One-command Grok install from GitHub.

not rated 2 2mo ago A 62 tokens original MIT

golang

18012

car12o/agents

Skill Claude CodeCodex

Write idiomatic, production-grade Go. Self-contained — all rules inline, no reference files. Use when editing .go files, go.mod, go.sum, or Go tests, or when asked to design, generate, or review Go code. Covers style, control flow, errors, concurrency, context, testing, performance, security, modules, JSON, database…

not rated 2 changed 25d ago A 90 tokens

code-oz

18013

omerakben/code-oz

Skill Claude CodeCodex

Drive the code-oz agentic SDLC runtime to build or fix code with enforced gates and cross-family review. Use when the user asks to build, implement, or fix something in a code repository and wants gated, reviewed delivery rather than ad-hoc edits.

not rated 2 3mo ago A 57 tokens original MIT

nirium-agentic-payments

18014

nirium-protocol/nirium-sdk

Skill Claude CodeCodex

Scaffold and run an x402 paid API server on Stellar with open-source client libraries: charge AI agents per API call with x402Serve(), a function from the nirium SDK that runs entirely on your own server, scaffold that server with nirium-cli in one command, and separately read live protocol data through the nirium-mcp…

not rated 2 changed 1mo ago A 128 tokens original Apache-2.0

swarm-subagent

18015

finml-sage/agent-swarm-protocol

Skill Claude CodeCodex

You are a Claude subagent participating in an Agent Swarm Protocol network. You process incoming messages from other agents and respond appropriately.

not rated 2 4mo ago A 0 tokens original MIT

action-prefix-system

18016

HelixDevelopment/code

Skill Claude CodeCodex

Explain and apply the UPPERCASE action-prefix directive system (BACKGROUND, ISSUE, BUG, TASK, REMINDER, FEATURE).

not rated 2 22d ago A 25 tokens original MIT

thumbnail-creator

18017

greg-prospyr/thumbcraft-skills

Skill Claude CodeCodex

Generate AI-powered YouTube thumbnails, analyze videos for thumbnail ideas, manage styles/faces/brands, and create SEO-optimized titles and descriptions. Use when users want to create thumbnails, need thumbnail ideas for a video, want to clone a thumbnail style, or need YouTube SEO content.

not rated 2 7mo ago A 62 tokens original MIT

specify

18018

yannlugrin/claude

Skill Claude CodeCodex

Write project specifications (SPECIFICATIONS.md) intended for AI implementation: a staged, decision-centric process where the user arbitrates every decision — intake and exploration, structured drafting under the must/should/facts contract, cold subagent review rounds, premise challenges of foundational decisions, and…

not rated 2 1mo ago A 233 tokens original MIT

architecture

18019

bpkey/skills

Skill Claude CodeCodex

Use whenever designing, reviewing, refactoring, or evolving the STRUCTURE of a codebase — module boundaries, layering, where new code should live, naming a package or service, an architecture-worthy decision, or auditing existing structure. Triggers on phrases like "design the architecture", "where should this live"…

not rated 2 25d ago A 139 tokens

skill-builder

18020

austinpeechatt/claude-code-skills

Skill Claude CodeCodex

Use when creating new skills, optimizing existing skills, or auditing skill quality. Guides skill development following Claude Code official best practices.

not rated 2 7mo ago A 28 tokens

generate-agents-md

18021

Enterwell/agent-skills

Skill Claude CodeCodex

Create or improve a project-specific AGENTS.md file for software repositories. Use when a user wants durable setup, testing, architecture, safety, and workflow instructions for AI coding agents.

not rated 2 4mo ago A 41 tokens original MIT

review-pr

18022

edlng/agents

Skill Codex needs its repo

Reviews a pull request against the linked Jira ticket and the existing codebase. Parallel reviewers per discipline, findings merged and checked by a skeptic validator pass. Output is local only: printed in chat, rendered as a temporary self-contained HTML report, and saved as a findings JSON file. Nothing is posted to…

not rated 2 changed today A 83 tokens

fable-mode

18023

richardoros/fable-mode

Skill Claude CodeCodex

Staged orchestration for genuinely multi-stage builds — stage map, warm implementer / fresh adversarial verifier, witnessed-red TDD, re-verify on every change. Builds on the always-on operating discipline in /.claude/CLAUDE.md (verify by re-execution, [confirmed]/[inferred] labeling, cost/blast gating), which applies…

not rated 2 3mo ago A 147 tokens original MIT

aws

18024

whchoi98/claude-code-skills

Skill Claude CodeCodex

An AWS management skill for working with Amazon Web Services, a cloud platform that provides servers, storage, and other infrastructure.

not rated 2 9mo ago B 35 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: