Takes one long-form piece (article, video transcript, talk, research brief) and produces a repurposing matrix — LinkedIn post, X thread outline, newsletter blurb, and 3 short-video hooks — each adapted to platform norms, never copy-pasted. Use when the user asks to "repurpose this", "turn this into social content", "spread this across platforms", "atomize this post", or "get more out of this piece". Don't use for producing the final polished posts — this skill outlines; hand cells to linkedin-content-pack or x-thread-builder.