Validate a SKILL.md
Paste a SKILL.md or drop a skill folder to see what each agent will reject, with the fix. Or build one from a form.
Runs in your browser; nothing is uploaded.
Or open a or a .
The skill's folder, which some agents expect to match its name.
Lowercase letters, digits and hyphens, like the folder.
An SPDX id such as MIT or Apache-2.0.
What the skill does and when to use it.
What it needs to run, if anything.
Tools it may use without asking first.
The Markdown under the frontmatter: what the agent should do.