ad-skills 是做什么的？
Produce paid social ad creatives - short vertical videos and static images for Reels, Stories, Feed and similar placements - from a brief to upload-ready files with copy, UTMs and a sources-and-rights record. Use when the user asks for a video ad, a Reels/Stories ad, an ad creative, a static ad image, a paid product-demo ad, "ролик для рекламы", "креатив для таргета", or wants an existing ad creative fixed or re-cut. Also the production step after newsjack-ads approves a spine. Covers the buyer-