What are Claude Code Skills?

Claude Code Skills are reusable prompt templates stored as markdown files in your project's .claude/skills/ directory. They let you codify best practices and common workflows into slash commands that Claude follows consistently.

How do I create a Claude Code Skill?

Create a markdown file in .claude/skills/ with instructions for Claude. The filename becomes the command name — for example, .claude/skills/code-review.md can be invoked with /code-review during a Claude Code session.

Can I share skills with my team?

Yes. Skills stored in .claude/skills/ can be committed to version control so every team member has access to the same standardized workflows. You can also organize skills into subdirectories by category.

What is the difference between project and global skills?

Project skills (.claude/skills/) are specific to the current project and are committed to git. Global skills (~/.claude/skills/) are personal skills available across all your projects.

critical-thinking

New

1GitHub TrendingGeneralby Johna2an

Open-source Agent Skill for Claude Code that makes Claude reason with explicit probabilities, base rates, and falsifiers. Distilled from 51 books; first in 18/18 blind judge passes vs baseline Claude and GPT-5.5.

Install & Usage

Create the skills directory

mkdir -p .claude/skills

Download the skill file

mkdir -p .claude/skills && curl -o .claude/skills/critical-thinking.md https://raw.githubusercontent.com/Johna2an/critical-thinking/main/SKILL.md

Invoke in Claude Code

/critical-thinking

View source on GitHub

agent

Frequently Asked Questions

What is critical-thinking?

How to install critical-thinking?

To install critical-thinking, create the .claude/skills directory in your project, then run the curl command to download the skill file. Once installed, invoke it in Claude Code with /critical-thinking.

What is critical-thinking best for?

critical-thinking is a community categorized under General. It is designed for: agent. Created by Johna2an.