What problem does it solve? Deep research usually ends in scattered notes and lost sources. This Skill turns a research question into a permanent knowledge asset: every primary source archived verbatim, one summary per source, and a single synthesized compendium page that reads standalone. ## Core Features & Use Cases - Four-phase pipeline: find everything (brain-first, then web), archive each primary source under research/<topic>/sources/, write a strict 1:1 summary per source, then synthesize one compendium page with inline citations. - Depth dial: five idempotent levels from base synthesis up to exhaustive saturation, tracked in an index ledger so deepening a topic never redoes finished work. - Quality gates: cold-read accessibility check, mechanical fact-check of every claim against archived source spans, and a cross-modal eval before shipping. - Use Case: Ask for a definitive guide to spaced repetition and receive an archived corpus of 15-30 sources, per-source summaries with real numbers, and a self-contained compendium with a ranked reading manifest. ## Quick Start Research everything about spaced repetition, archive the sources, summarize each one, and write me a compendium.