diagnose-ssr

Test whether the page is meaningfully server-rendered by blocking every external script and reloading. Inline scripts (RSC payload, hydration boot, JSON-LD) still execute — only <script src="..."> is denied. What you see is what a crawler, a no-JS user, or someone on a flaky network sees on first paint.

Prerequisites

• An agent-browser session already opened (any URL is fine; the skill navigates to the target itself). Probe with:

  agent-browser get url    # errors if no session; prints URL if alive