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12 Factor Apps

12 Factor Apps is an agent skill (a SKILL.md file) from LeoYeAI/openclaw-master-skills. Perform 12-Factor App compliance analysis on any codebase. It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 2,158 GitHub stars across a repository of 3 listed skills.

github.com/LeoYeAI/openclaw-master-skills/skills/12-factor-apps (opens in a new tab)

View on GitHub (opens in a new tab)

Add this skill

Claude

Claude Code loads skills from ~/.claude/skills/ (all projects) or .claude/skills/ (one project):

git clone --depth 1 https://github.com/LeoYeAI/openclaw-master-skills.git
cp -r openclaw-master-skills/skills/12-factor-apps ~/.claude/skills/12-factor-apps   # personal, or .claude/skills in a project

In the Claude apps, zip the 12-factor-apps folder and upload it under Customize > Skills > + > Upload a skill (code execution must be on).

ChatGPT / Codex

Codex reads skills from .agents/skills/ in a repo or ~/.agents/skills/ for every project:

git clone --depth 1 https://github.com/LeoYeAI/openclaw-master-skills.git
cp -r openclaw-master-skills/skills/12-factor-apps .agents/skills/12-factor-apps   # repo; ~/.agents/skills for all projects

Standalone skills also load in the ChatGPT desktop app.

Cursor

Cursor loads skills from .cursor/skills/ (or ~/.cursor/skills/) and also reads .claude/skills/:

git clone --depth 1 https://github.com/LeoYeAI/openclaw-master-skills.git
cp -r openclaw-master-skills/skills/12-factor-apps .cursor/skills/12-factor-apps   # project; ~/.cursor/skills for all projects

Source (checked Oct 7, 2026): code.claude.com/docs/en/skills (opens in a new tab), support.claude.com/en/articles/12512180-using-skills-in-claude (opens in a new tab), learn.chatgpt.com/docs/build-skills (opens in a new tab), cursor.com/docs/context/skills (opens in a new tab)

What this skill does

Perform 12-Factor App compliance analysis on any codebase. Use when evaluating application architecture, auditing SaaS applications, or reviewing cloud-native applications against the original 12-Factor methodology. The 12-Factor App methodology is a set of best practices for building Software-as-a-Service applications that are: - Portable across execution environments - Scalable without architectural changes - Suitable for continuous deployment - Maintainable with minimal friction

When it triggers

  • Use when evaluating application architecture, auditing SaaS applications, or reviewing cloud-native applications against the original 12-Factor methodology.

More skills in LeoYeAI/openclaw-master-skills

3 skills are listed from this repository.

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FAQ

12 Factor Apps FAQ

Still curious? Email info@appsgit.com.

What is the 12 Factor Apps skill?

12 Factor Apps is an agent skill (a SKILL.md file) from LeoYeAI/openclaw-master-skills. Perform 12-Factor App compliance analysis on any codebase. It works with Claude Code, Codex, Cursor, Gemini CLI, GitHub Copilot and OpenCode and has 2,158 GitHub stars across a repository of 3 listed skills. Its SKILL.md lives at github.com/LeoYeAI/openclaw-master-skills/skills/12-factor-apps.

How do I install the 12 Factor Apps skill?

Copy the 12-factor-apps folder (the one containing SKILL.md) into ~/.claude/skills/ for Claude Code, .agents/skills/ for Codex or .cursor/skills/ for Cursor. The agent picks it up automatically when a task matches its description.

Is the 12 Factor Apps skill free?

Yes. The repository is open source under the MIT license.

Is 12 Factor Apps maintained?

The repository's most recent commit was on Jul 20, 2026. Its latest release is v0.21.0. appsgit only lists skills from repositories with a commit in the last six months.