Skillcheck — Connect & Start

Skillcheck

Drop a skill file. Get a verdict.

Not connected

Connect your Skillcheck API URL

Skillcheck API URL — paste the URL your workspace gave you Token — optional; leave blank for open/anonymous proxies

Start using skillcheck

Install once, point the CLI at your URL, then check any SKILL.md AGENTS.md CLAUDE.md .cursorrules or a folder containing one.

Quick check in the browser — optional preview

Runs your task once with and once without the skill so you can see the contrast and confirm the connection works. This is a single ungraded trial — for the real verdict (N tasks × K trials, blind grading, bootstrap CI) run skillcheck check in the CLI.

Skill instructions Task prompt

With skill

Without skill

Settings are stored only in this browser (localStorage). Your token is never sent anywhere except your Skillcheck API URL.