Awesome Codex CLI — curated list of 150+ ecosystem tools (subagents, skills, plugins, MCP servers, and more)

[RoggeOhta]

Hey everyone 👋

I've been using Codex CLI daily and kept running into the same problem: the ecosystem is growing fast, but everything
is scattered across dozens of repos. Subagents here, skills there, MCP servers somewhere else. Finding the right tool
meant hours of searching.

So I built Awesome Codex CLI — a curated list of 150+ tools
organized into 20 categories:

• Subagents — 136+ agents across collections like VoltAgent, plus multi-agent orchestration tools
• Skills — 38+ skill packs including Hugging Face's official upskill
• Plugins — the first plugin directories and frameworks
• MCP Servers — both "Codex as client" and "Codex as server" (letting Claude Code call Codex agents!)
• Cross-Agent Tools — bridges between Codex, Claude Code, and Gemini CLI
• IDE Integrations — VS Code, Neovim, Emacs, and more
• Model Providers — configs for LiteLLM, Ollama, LM Studio, OpenRouter
• CI/CD — codex exec automation recipes
• Plus: GUI apps, session management, monitoring, Docker, auth tools, tutorials, and a full comparison table (Codex vs
  Claude Code vs Gemini CLI)

Every entry has an opinionated one-line description so you know what's actually worth your time — not just a link
dump.

The list is open for contributions. If I missed your tool or a tool you use, please open a PR or drop a comment
here.

🔗 https://github.com/RoggeOhta/awesome-codex-cli

What tools are you using with Codex that aren't on the list yet?

[pramodavansaber]

Nice list. We submitted tailtest via PR #12 to the Plugins section. It uses the Codex Stop hook to sweep mtimes after each turn, queues changed source files, and instructs Codex to generate and run tests automatically -- 8 languages (Python, TypeScript, Go, Ruby, PHP, Java, Rust, JavaScript), zero config.

[ukint-vs]

Great list. Added vara-skills via PR #14 under Domain-Specific Skills. It is a 21-skill pack that teaches Codex to build and ship Rust smart contracts on Vara Network with the Gear/Sails framework — full pipeline from spec through Sails implementation, IDL codegen, deterministic gtest, to on-chain deploy via vara-wallet. Published by Gear Foundation, MIT licensed. Install: bash scripts/install-codex-skills.sh.

[acogood]

Suggestion for the list — Diffmode Growth Tactics (Codex skills + plugin):

A free growth-strategy pipeline that runs on Codex (and Claude Code off the same skill files). Point it at a product URL and it researches your market and writes a synthesis.md: a competitor read, a buyer jobs-to-be-done map, and 7–9 unconventional acquisition tactics built for your constraints — each one fuses 2–3 growth mechanisms mined fresh from public case studies. Every generating stage is reviewer-gated.

Runs via a small stdlib-only Python orchestrator; Perplexity-optional with Codex's native web search as the fallback:

python3 codex/orchestrate.py --url https://your-product.com

Repo (Apache-2.0): https://github.com/acogood/diffmode_free

[Ar9av]

Worth adding: agent-manual — https://github.com/Ar9av/agent-manual

Cross-references hooks, config, MCP support, and slash commands across 17 agents including Codex. The Codex page covers all 10 PascalCase hook events (PreToolUse, PostToolUse, SessionStart, SubagentStart, SubagentStop, UserPromptSubmit, Stop, PermissionRequest, PreCompact, PostCompact), the three-level TOML hook structure (event → matcher group → handlers array), and the two core built-in tools (shell, apply_patch). Good companion if you're comparing Codex's hooks or config format against Claude Code, Gemini CLI, or Aider.