What problem does it solve? Reading and re-reading large folders of PDFs, DOCX files, and notes for every question wastes time and context. This Skill builds a persistent README.md index of structured summaries so later questions are answered from the cache instead of re-opening every source file. ## Core Features & Use Cases - Folder-scale indexing: Scans a directory of PDF, DOCX, Markdown, and text files, then writes a structured five-point summary (problem, difficulty, rejected alternatives, solution, key details) per document into a README.md cache. - Staleness detection: Uses check-stale.sh to compare source modification times against summary dates and re-summarizes only STALE or MISSING entries. - README-first querying: Answers questions from the index and re-opens source files only for quotes, tables, or gaps, fetching targeted page ranges rather than whole documents. - Use Case: A researcher with 30 papers in a folder asks "what do these papers say about GPU virtualization" and gets an answer synthesized from the index without re-reading every PDF. ## Quick Start Ask the assistant to summarize and index all documents in a chosen folder so future questions about them are answered from the generated README index.