nx_pageref_lib.nx

nx_pageref_lib.nx -- THE ASSET-REFERENCE VOCABULARY: which attributes on a page name an artifact the browser will fetch, and which file extensions must never answer HTML. ONE owner, imported by BOTH the verifier (nx_page_verify) and its in-process gate (nx_pageref_gate) -- the nx_sitesweep_lib shape, for the same reason: the piece of judgement must be biteable without a fork or a network. WHY THIS EXISTS (measured 2026-08-26, debt 1787786411). nx_page_verify reported checked=2 on the live /exceed/vrm/seed-san, a page carrying FOUR data-glb= mesh references. Its extractor knew src= (both quote styles, plus bare) and <link href=, and had never known data-glb= -- an attribute nx_absent shows is emitted from exactly ONE site estate-wide (nx_asset_page.nx:432, matches=1 coverage_complete=1 corpus_complete=1). By that organ's own banked law: A REF THE EXTRACTOR CANNOT SEE IS A REF THE VERDICT SILENTLY ACQUITS. Four mesh refs per asset page were being acquitted without ever being fetched. EVERY LENGTH HERE IS DERIVED FROM ITS LITERAL, NEVER HAND-COUNTED. A hand-counted length beside a string literal is a second copy of that literal's shape and the two drift silently -- change the string, forget the number, and the parser reads the wrong window while still compiling. THE EXTENSION MATCH IS EXACT TO END-OF-URL, NOT A PREFIX AT THE DOT. The incumbent tested sw_starts(aurl, dot, ".png"), which also accepts .pngx; exactness costs one comparison and is bite-proven here by a neg-control. license_tier: ORIGINAL No hw writes (Rule 26).