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Agent host

Codex

867 skills · 0 MCP serversLatest audit 28 Oct 2026

Skills · 867
867 audited agent skills on ModelsAtlas mention Codex: 55% are stamped SAFE and 232 are BLOCK and should not be installed. No MCP server record carries a Codex connect snippet yet. Below: how to add each kind, and the safest picks.
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Cite this page

ModelsAtlas. “Codex: skills and MCP servers”. Retrieved 28 Oct 2026. https://modelsatlas.com/hosts/codex
Skills
867

name Codex in their docs

SAFE skills
474

55% · 161 caution · 232 block

MCP servers
0

no snippet yet

MCP BLOCK
0

none listed

Works with

Codex in the atlas

▣Agent skills

Install a skill in Codex

Only what each skill's own page records

  1. Check the stamp first

    Open the skill on ModelsAtlas. Install SAFE skills freely, read the findings on CAUTION, never install BLOCK.

  2. Use the audited commit

    Every audit names the commit it read. The stamp covers that commit only, not the branch head.

  3. Run what the skill says

    Where a skill's instructions give an install line, its page lists it. Where they do not, we show nothing rather than invent one.

npx skills add https://github.com/mem0ai/mem0 --skill mem0-cli

From the instructions of Mem0 CLI Skill for Claude (mem0ai/mem0), the most-starred SAFE skill here that gives a complete install line. Audited commit 5501ce5.

Connect an MCP server

Snippets come from each server's published package

No MCP server record carries a connect snippet for Codex yet, so we show no command. Servers with a snippet for other clients are on the MCP servers hub.

Safest skills for Codex

All 867 Codex skills →

SAFE skills only, highest audit score first, then stars.

Skills For Real Engineers

mattpocock/skills

Skills for Real Engineers. Straight from my .agents directory.

✓SAFE B★ 305,019

Brainstorming

obra/superpowers

An agentic skills framework & software development methodology that works.

✓SAFE B★ 302,550

Skills For Real Engineers

mattpocock/skills

Skills for Real Engineers. Straight from my .agents directory.

✓SAFE B★ 302,268

Ask Matt

mattpocock/skills

Skills for Real Engineers. Straight from my .agents directory.

✓SAFE B★ 301,365

Everything Claude Code

affaan-m/ECC

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

✓SAFE B★ 264,831

Safety Guard

affaan-m/ECC

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

✓SAFE B★ 264,831

Questions about Codex

How do I install a skill in Codex?
Open the skill's page on ModelsAtlas. It shows the install lines the skill's own instructions give, when it has any, and the commit we audited. Install SAFE skills as you would any dependency, read the findings on CAUTION first, and do not install BLOCK. The stamp covers the audited commit only, so use that commit rather than the branch head.
Are Codex skills safe?
Most are not a problem, but check each one: of 867 audited skills that mention Codex, 474 are SAFE, 161 CAUTION and 232 BLOCK. A skill can run scripts and steer the agent, so look at its stamp before you install.
Which skills work in Codex?
The 867 that name Codex in their own documentation. That is what the text claims, not a compatibility test we ran.
Can I connect MCP servers to Codex?
We have no MCP server record with a connect snippet for Codex yet, so we show none rather than guess a command.

Keep going in your AI

Opens with this page as the source. We add nothing else to the prompt.