概要
This skill equips Claude with the expertise needed to build robust storage solutions, focusing on S3-compatible providers like AWS S3 and Cloudflare R2. It moves beyond simple uploads by implementing advanced patterns such as presigned URLs to reduce server load and multipart uploads for handling large files without performance degradation. The skill places a heavy emphasis on security, guiding developers to verify magic bytes, sanitize filenames against path traversal attacks, and enforce strict size limits to protect infrastructure from abuse.