Ad-hoc research tool: for a list of candidate tubes, fetch a listing page, grab a scene
URL, and classify the detail — reachable / JSON-LD VideoObject / duration / performers /
tags. Used 2026-06-03 to evaluate deep-crawl candidates (redtube + drtuber look strong;
pornhub/spankbang/porntrex/hqporner/youporn rejected; nuvid/motherless bare).
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
