How to Build Your First Claude Skill: A Step-by-Step Tutorial
Building a Skill sounds technical, but the truth is anyone who can write clear instructions can create one. If you have ever explained a task to a new teammate, you already have the skill set you need.
This tutorial walks you through building your first working Skill from scratch.
What You Will Build
For this guide we will create a simple but useful Skill called **Email Polisher**. It takes a rough draft and returns a clear, professional version while preserving your voice.
By the end you will have a working Skill and a template you can adapt for anything else.
The Anatomy of a Skill
Every Skill has the same basic structure:
That is it. No code required for most Skills.
Step 1: Define the Job
Before you write anything, answer three questions:
For Email Polisher the answers are:
Step 2: Write the SKILL.md File
Create a file named SKILL.md and add the following sections.