Simple Formatter
Simple Formatter is an agent skill (a SKILL.md file) from cisco-ai-defense/skill-scanner. Formats text according to specified style guidelines. It works with Claude Code, Codex and Cursor and has 2,635 GitHub stars across a repository of 2 listed skills. Install it by copying the skill folder into your agent's skills directory.
Data as of from the GitHub API; description from the skill's SKILL.md. Report an error
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/cisco-ai-defense/skill-scanner.git
cp -r skill-scanner/evals/test_skills/safe/simple-formatter ~/.claude/skills/simple-formatter # personal, or .claude/skills in a projectIn the Claude apps, zip the simple-formatter 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/cisco-ai-defense/skill-scanner.git
cp -r skill-scanner/evals/test_skills/safe/simple-formatter .agents/skills/simple-formatter # repo; ~/.agents/skills for all projectsStandalone 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/cisco-ai-defense/skill-scanner.git
cp -r skill-scanner/evals/test_skills/safe/simple-formatter .cursor/skills/simple-formatter # project; ~/.cursor/skills for all projectsSource (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
Formats text according to specified style guidelines. A clean example skill with no security issues. When the user provides text to format, apply the following rules: 1. Capitalize first letter of sentences 2. Ensure single space after periods 3. Remove trailing whitespace
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How do I install the Simple Formatter skill?
Copy the simple-formatter 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 Simple Formatter skill free?
Yes. The repository is open source under the MIT license.
Is Simple Formatter maintained?
The repository's most recent commit was on Oct 22, 2026. Its latest release is 2.3.1. appsgit only lists skills from repositories with a commit in the last six months.