PDF Explore — navigate a PDF too big to embed

A 50-page PDF via read_file is ~200K tokens in context, and pages loaded with read_file(pages=[...]) are dropped from context after one turn — so multi-section synthesis turns into re-reading the same pages over and over. And when the answer is "every page" (list all the datasets / citations / figures / benchmarks mentioned anywhere in this document), reading the whole thing page-by-page is the expensive way to get it. This skill parses the PDF once in the Python kernel and runs one cheap haiku call per page, in parallel, so you load only what matters — or sweep every page without ever putting the pages in your own context.

Which helper