Find the best skills and plugins for OpenAI Codex, the AI coding agent.
OpenAI Codex Skills tools are AI-powered software designed to help developers and teams tackle openai codex skills-related tasks more efficiently. These tools are typically published as open-source projects on GitHub and can be integrated into existing workflows via MCP (Model Context Protocol), Claude Skills, or standalone agent frameworks. On Agent Skills Hub, we index 10 quality-scored openai codex skills tools across languages including Python, Shell, Go.
In 2026, the AI agent ecosystem is maturing rapidly. OpenAI Codex Skills tools can significantly boost development efficiency by automating repetitive tasks, reducing human error, and providing intelligent suggestions. The top 3 tools — Agent-Skills, hermes-agent, awesome-codex-plugins — have earned an average of 27,355 GitHub stars, reflecting strong community validation. 8 of the listed tools come with clear open-source licenses, ensuring freedom to use and modify.
When choosing a openai codex skills tool, consider these factors: 1) Community activity — GitHub stars and recent commit frequency indicate reliability; 2) Integration method — check if it supports MCP, Claude, or your preferred agent framework; 3) Language compatibility — the most common language in this list is Python; 4) Quality score — Agent Skills Hub's composite score evaluates code quality, documentation completeness, and maintenance activity. Our recommendation: start with Agent-Skills — it ranks highest in both star count and quality score.
Curated Agent Skills for Microsoft & Azure – giving AI coding assistants structured, real-time expertise from Microsoft Learn docs.
A curated list of awesome OpenAI Codex plugins, skills, and resources. See live plugins at: https://hol.org/registry/plugins
Codex skill: aggressive web research via OpenAI-compatible Grok endpoint (2api)
Audit, track usage, and manage your Claude Code and OpenAI Codex skills. 7 slash commands, zero dependencies.
Wrap Gemini CLI, Antigravity, ChatGPT Codex, Claude Code as an OpenAI/Gemini/Claude/Codex compatible API service, allowing you to enjoy the free Gemini 3.1 Pro, GPT 5.5, Claude model through API
Sub2API-CRS2 一站式开源中转服务，让 Claude、Openai 、Gemini、Antigravity订阅统一接入，支持拼车共享，更高效分摊成本，原生工具无缝使用。
Show usage stats for OpenAI Codex and Claude Code, without having to login.
```bash
brew install --cask steipete/tap/codexbar
```| Tool | Stars | Language | License | Score |
|---|---|---|---|---|
| Agent-Skills | ★ 536 | — | CC-BY-4.0 | 42 |
| hermes-agent | ★ 146.9k | Python | MIT | 57 |
| awesome-codex-plugins | ★ 178 | Python | Apache-2.0 | 43 |
| grok-skill | ★ 128 | Python | — | 37 |
| skills-janitor | ★ 87 | Shell | MIT | 42 |
| nanobot | ★ 42.3k | Python | MIT | 48 |
| CLIProxyAPI | ★ 32.3k | Go | MIT | 52 |
| sub2api | ★ 20.1k | Go | LGPL-3.0 | 53 |
| skills | ★ 18.9k | Python | — | 48 |
| CodexBar | ★ 12.1k | Swift | MIT | 49 |
The top openai codex skills in 2026 are Agent-Skills, hermes-agent, awesome-codex-plugins. Agent Skills Hub ranks 10 options by GitHub stars, quality score (6 dimensions including completeness, examples, and agent readiness), and recent activity. The list is rebuilt every 8 hours from live GitHub data.
Agent-Skills (536 stars) is the most adopted choice for general openai codex skills workflows. hermes-agent (146.9k stars) is a strong alternative and uses Python instead. Pick by your existing stack: match the language and runtime your team already uses to minimize integration cost. If unsure, start with Agent-Skills — it has the deepest community and the most examples online.
Avoid pre-built openai codex skills when (1) your use case requires deep customization that the tool's plugin system doesn't support, (2) you have strict compliance requirements that ban third-party dependencies, (3) the tool's maintenance is inactive (last commit >6 months ago), or (4) your data volume is small enough that a 50-line custom script is cheaper than learning the tool. For most production workflows above 100 requests/day, the time savings from a maintained tool outweigh the customization loss.
OpenAI Codex Skills focuses specifically on find the best skills and plugins for openai codex, the ai coding agent. Claude Code Skills is a related but distinct category — see https://agentskillshub.top/best/claude-code-skills/ for those tools. The two often appear in the same agent pipeline but solve different problems: choose openai codex skills when your primary goal is the specific task, and claude code skills when the workflow is broader.
For most teams, yes. Agent-Skills has 536 stars worth of community testing, handles edge cases you haven't thought of, and ships with documentation. Build your own only when (1) your requirements are deeply non-standard, (2) you have a security/compliance reason to avoid OSS dependencies, or (3) the maintenance burden is small enough (<200 lines of code) that you'll save time long-term. The break-even point is usually around 2-3 weeks of dev time saved.
Most openai codex skills listed are open source under permissive licenses (MIT, Apache 2.0). A handful offer paid managed/cloud versions on top of free self-hosted core. Always check the LICENSE file on each tool's GitHub repository before commercial use — some use AGPL or non-commercial restrictions that may not fit your deployment model.