Ten skill files for the unglamorous half of selling digital products: writing the listing, pacing the uploads, pricing the pack, and checking your own output before a buyer finds the flaw. Each file is a skill definition in the format Claude Code and Cursor rules read. The front matter carries the name and the trigger conditions, then a procedure an agent can follow without extra prompting. Drop one in your skills folder and the agent picks it up when the task matches. The ten cover listing-writer, prompt-pack-builder, dataset-catalog, pdf-graph-qa, isr-cache-doctor, publish-queue-pace, reddit-comment-funnel, slop-scan, price-scout and payout-rail-scout. Real mechanics, not platitudes. The PDF skill walks the page tree, kids, contents and orphan pages, instead of counting streams, which is how blank documents pass a check that looks fine. The cache skill explains why a page stays a 404 for a week after the record goes live and what to touch first. The pacing skill sets the upload gap and the duplicate guard that keep a selling account in good standing. Nothing in these files names an account, a page address, a credential or a machine path. 10 markdown files, the smallest 2.7 KB and every one under 6 KB, MIT license, use it in your own work.