Instagram Post Downloader Skill

Downloads Instagram posts at full resolution from Instagram's CDN — no screenshots, no compression. Handles single images, carousels (multi-slide posts), and Reel cover images. For carousels, produces individual slide files plus a single stitched PDF. Supports batch URLs in one run.

PREREQUISITE — Domain Allowlist

Before this skill can fetch any media, you must add Instagram's CDN domain to Claude Code's allowlist:

Settings → Capabilities → Domain allowlist → Add:

*.cdninstagram.com

Without this, all CDN fetch calls will be blocked. If you see a permission error when Claude attempts a fetch to cdninstagram.com, this is the fix.