Authz Check

SkillSecurity

Verify that an endpoint checks ownership, not just authentication. Use on any handler that reads or mutates user data.

Available today. Use it from your connected AI after setup.

No other account needed.

Connect ahel once, and every AI you use reads what you have installed.

Then ask your AI: use the Authz Check skill

What this skill tells your AI

The instructions your AI receives, as published by archive228/loopkit in skills/authz-check/SKILL.md and read by ahel’s review.

The most common security hole: the code checks you're logged IN, but not that you OWN the thing.

For every resource access: does it verify the current user is allowed THIS specific record? WHERE id = ? AND owner_id = current_user — not just WHERE id = ?.
IDOR test: swap the ID in the request to another user's. Does it leak/allow?
Admin/privileged actions: is the role checked server-side, every time, not just hidden in the UI?
Default deny: new endpoints should require explicit authorization, not be open by oversight. Output each handler that authenticates but doesn't authorize, with the missing check.

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