Rule impact - blast radius
"What requests, and downstream effects, would change if I add rule X?" Tier 1 decision deltas + Tier 2 structural footprint, decided live in your browser with Brave's adblock engine. Structural estimate, not behavioral.
Persistent storage keys
Which persistent keys do scripts set across the corpus? Value-blind: key names, sizes, identifier category, setter-script reach - never the values. Click a key for its setter scripts.