Use Percollate when an agent needs to fetch a live webpage and preserve it as a clean PDF or readable offline artifact for later review, sharing, or citation. A user should invoke this instead of using the browser print or save flow normally when the task needs repeatable CLI capture and a cleaner reading artifact, not interactive browsing or site editing. The scope boundary is specific and skill-shaped: it captures and packages a supplied webpage into an offline deliverable, not a browser platform, CMS, or generic web product listing.