IWSBasic Skills.md
A Skill is a reusable set of instructions you save as a SKILL.md file. Claude runs it on demand — by name, or automatically when it fits the task.
WhatCreate folderWrite SKILL.mdUse it
.claude/skills/your-skill/SKILL.md
One markdown file: a short description (when to use it) plus the instructions Claude should follow. It loads only when used — so it costs zero tokens until you need it.
Reusable across chatsYou or Claude can run itLives with your project
Explorer
- ▸my-site
- ▾.claude
- ▾skills
- ▾summarize-changes
- SKILL.md
M↓SKILL.md
1---
2description: Summarize uncommitted changes
3 and flag any risks.
4---
5
6## Instructions
7Summarize the changes in 2–3 bullets.
8List risks: missing checks, hard-coded values.
Claude
/summarize-changes
summarize-changes →
• Added auth check to login.js
• New env var, no fallback ⚠
• Added auth check to login.js
• New env var, no fallback ⚠
Type / to run a skill…/summarize-changes
⎇ main✱ Claude CodeSKILL.md · Markdown
Skills make you faster.
1 .claude/skills/<name>/2 SKILL.md3 /run it
Guide by Inner Web Solutions · write it once, reuse it forever.
Basic Skills.md