Codex skills, with the output they produce

All 319 skills in this catalogue install into Codex. The CLI writes the skill folder to ~/.agents/skills/<slug>, and Codex is what it falls back to when you do not name an agent. Nothing in a skill is Codex-specific — the same folder loads in Claude Code or Cursor, so the choice costs you nothing.

319 skills · 162 scored 5.00 · 35 free · installs to ~/.agents/skills/<slug>

Install into Codex

1. Sign in once

npx skillloom-cli login

A browser window opens and you confirm the code shown in the terminal. The token is stored in the OS keychain. Node.js 20 or newer is required.

2. Install the skill

npx skillloom-cli install <slug> --agent codex

The slug is the last path segment of a skill URL. The CLI downloads the skill, verifies its checksum and writes it to ~/.agents/skills/<slug>.

3. Check the setup

npx skillloom-cli doctor

doctor prints what is missing. Image skills also need a generation key: issue one in Settings, then run doctor --write-env and source ~/.skillloom/env.

Codex is the CLI's fallback agent: with no --agent, it uses the defaultAgent in your config, then the first agent folder it finds on disk, and only then codex. ~/.agents/skills is the shared convention — Cursor, Gemini CLI and OpenCode read the same folder — so a skill installed once is already in place for all four.

What the 319 Codex skills produce

Grouped by what you get back at the end of a run. These counts are the live catalogue, read at render time, not a figure typed into this page.

Web

103 skills

Slides

45 skills

Image

81 skills

Video

90 skills

Who runs these in Codex

The same catalogue, cut by the job instead of the deliverable. Every skill here runs in Codex, so these are filters on this page's list, not a different set of skills.

Why one skill folder works in every agent

A skill is a folder, not an integration: a SKILL.md your agent reads on demand, plus references/ and scripts/ — the same three in all 319 of them. Nothing inside is addressed to a particular agent, which is why every skill here declares Claude Code, Codex, Cursor, Gemini CLI and OpenCode at once rather than shipping five variants. The only thing that changes between agents is the folder the CLI writes to.

Where each agent reads skills from

Folders the CLI writes to, relative to your home directory. The last column is the honest part: two of these were confirmed by installing a skill and checking the result; the rest come from official or community documentation and are still unconfirmed here. Any of them can be overridden with --target <dir>.

--agentAgentFolderFolder confirmed by a real install
claude-codeClaude Code~/.claude/skills/<slug>confirmed
codexCodex~/.agents/skills/<slug>confirmed
cursorCursor~/.agents/skills/<slug>not yet confirmed here
gemini-cliGemini CLI~/.agents/skills/<slug>not yet confirmed here
opencodeOpenCode~/.agents/skills/<slug>not yet confirmed here
kimi-codeKimi Code CLI~/.agents/skills/<slug>not yet confirmed here
antigravityAntigravity~/.gemini/config/skills/<slug>not yet confirmed here

All 319 skills that run in Codex

Common questions

Do all of these work in Codex?

Yes. Every one of the 319 skills names codex in the agents array of its own skill.json, and the Codex install folder was confirmed by a real install rather than read off a documentation page.

Where does a skill end up?

~/.agents/skills/<slug>, created by npx skillloom-cli install <slug> --agent codex. The folder also gets a .skillloom.json receipt recording the slug, version, sha256, agent and install time, which is what skillloom list and skillloom update read.

What happens if I omit --agent?

The CLI uses the defaultAgent from your config; failing that, the first agent folder it detects on disk; failing that, codex. So on a machine with nothing set up, codex is where a skill lands.

Is a skill written specifically for Codex?

No. A skill ships a SKILL.md plus references/ and scripts/ — all 319 of them do — and nothing in that folder is addressed to one agent. The only agent-specific part of an install is which folder it lands in.

Does running one cost anything?

Slide, web page and video skills render locally and cost nothing per run; they want Node.js 20+, FFmpeg and Chromium. Image skills call a generation model through a prepaid key you issue yourself, so that spend is yours and is never bundled into a membership.