Agent skill · OpenAI
Skill Installer (Codex) skill for Claude Code, Codex and Cursor
Officialname: skill-installer★ 28k (repo)pushed 2026-09-08Apache-2.0SKILL.md on GitHubchecked 2026-11-07
What it does, in the publisher's words
Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos).
The description field of the SKILL.md. The agent reads only this at startup and decides from it when to load the full skill.
Install Skill Installer (Codex)
The skills CLI copies the skill into the folder of each agent you pick (Claude Code, Codex, Cursor, Copilot, Gemini CLI, OpenCode, Windsurf...). Add -g for all projects. Needs Node.js 22.20+. docs
npx skills add openai/skills --skill skill-installer
Copy the skill folder into ~/.claude/skills (all projects) or .claude/skills (this repo). Claude Code picks it up without a restart. docs
npx skills add openai/skills --skill skill-installer -a claude-code # or by hand: git clone --depth 1 https://github.com/openai/skills.git /tmp/skill-installer-src cp -r /tmp/skill-installer-src/skills/.system/skill-installer ~/.claude/skills/skill-installer
Download the skill folder, zip it, then Customize > Skills > + > Create skill > Upload a skill. Code execution must be on (Settings > Capabilities). docs
git clone --depth 1 https://github.com/openai/skills.git /tmp/skill-installer-src cp -r /tmp/skill-installer-src/skills/.system/skill-installer ./skill-installer zip -r skill-installer.zip skill-installer
It's in OpenAI's own catalog: ask Codex for $skill-installer skill-installer, or use the skills CLI. docs
$skill-installer skill-installer
gh skill (GitHub CLI 2.90+, preview) installs it for Copilot in VS Code, the CLI and the cloud agent. Copilot also reads .github/skills and ~/.copilot/skills. docs
gh skill install openai/skills skill-installer
Cursor reads .cursor/skills, .agents/skills and ~/.cursor/skills (and .claude/skills). It does not install loose skills from a GitHub URL, so copy it in. docs
npx skills add openai/skills --skill skill-installer -a cursor
Installs from the GitHub repo; --path picks this skill out of the repo. Default scope is user (all projects). docs
gemini skills install https://github.com/openai/skills.git --path skills/.system/skill-installer
OpenCode reads .opencode/skills, ~/.config/opencode/skills and the Claude and .agents folders. docs
npx skills add openai/skills --skill skill-installer -a opencode
Windsurf (now Devin Desktop) reads .devin/skills, .windsurf/skills and ~/.codeium/windsurf/skills. docs
npx skills add openai/skills --skill skill-installer -a windsurf
Works with
Claude Code, Claude.ai and Claude Desktop, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode, Windsurf and other agents that read the open Agent Skills format.
- Bundles 3 Python scripts the agent can run, so it needs Python on the machine. In the Claude apps, code execution must be on.
What's in the SKILL.md
- Communication
- Scripts
- Behavior and Options
- Notes
Bundled files
- LICENSE.txt
- agents/openai.yaml
- assets/skill-installer-small.svg
- assets/skill-installer.png
- scripts/github_utils.py
- scripts/install-skill-from-github.py
- scripts/list-skills.py
Loaded only when the instructions point to them.
Facts
- Skill name
- skill-installer
- Publisher
- OpenAI (official)
- Repo
- openai/skills
- License
- Apache-2.0
- SKILL.md size
- 379 words, 52 lines
- Bundled files
- 7, 3 scripts (Python)
- Repo stars
- 28k (as of 2026-10-24)
- SKILL.md checked
- 2026-11-07
More skills from openai/skills
- ChatGPT Apps: Scaffolds and debugs ChatGPT apps built with the Apps SDK: an MCP server plus widget UI.
- GitHub: Address PR Comments: Works through review comments on the current branch's pull request using the gh CLI.
- GitHub: Fix CI: Reads failing GitHub Actions checks with gh, summarizes the cause and proposes a fix.
- Image Generation: Generates or edits raster images such as illustrations, sprites, mockups and transparent cutouts.
- Linear: Reads, creates and updates Linear issues and projects from the agent.
- OpenAI Docs: Looks up current OpenAI API and Codex documentation and helps pick a model.
- Playwright Browser Automation: Automates a real browser from the terminal for form filling, snapshots, scraping and UI debugging.
- Security Best Practices Review: Reviews code for language- and framework-specific security issues and suggests safer defaults.
- Security Threat Model: Writes a threat model for a repository: trust boundaries, assets, attack paths and mitigations.
Related workflow & planning skills
- Skill Creator · Anthropic
- Modern Python Tooling · Trail of Bits
- Commit (Sentry style) · Sentry
- Notion Spec to Implementation · Notion
- Brainstorming · Jesse Vincent (obra)
- Requesting Code Review · Jesse Vincent (obra)
- Subagent-Driven Development · Jesse Vincent (obra)
- Using Git Worktrees · Jesse Vincent (obra)
FAQ
What does the skill-installer skill do?+
Codex's built-in helper that installs skills from the curated list or any GitHub repo path. In its own SKILL.md, OpenAI describes it as: "Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos)."
How do I install the skill-installer skill?+
Run npx skills add openai/skills --skill skill-installer and pick your agents, or use the tab for your agent above. In Claude Code the skill ends up in ~/.claude/skills/skill-installer/SKILL.md; in Codex and Cursor in .agents/skills/skill-installer/.
Does Skill Installer (Codex) work in Codex, Cursor and Copilot, or only Claude?+
It's a standard SKILL.md, so any agent that reads the Agent Skills format can use it: Claude Code, the Claude apps, Codex, GitHub Copilot, Cursor, Gemini CLI, OpenCode, Windsurf and more.
Who maintains Skill Installer (Codex)?+
OpenAI, the company or project behind it, in the openai/skills repo on GitHub, last pushed 2026-09-08. License: Apache-2.0.
Read a skill's SKILL.md and scripts before you install it: skills aren't verified by any agent vendor. Claude skills marketplace · How to install skills · MCP servers