Expert at handling file uploads and cloud storage. Covers S3, Cloudflare R2, presigned URLs, multipart uploads, and image optimization. Knows how to handle large files without blocking. Use when: file upload, S3, R2, presigned URL, multipart.
Add this skill
npx mdskills install sickn33/file-uploadsStrong security awareness but lacks actionable implementation steps and code examples
1---2name: file-uploads3description: "Expert at handling file uploads and cloud storage. Covers S3, Cloudflare R2, presigned URLs, multipart uploads, and image optimization. Knows how to handle large files without blocking. Use when: file upload, S3, R2, presigned URL, multipart."4source: vibeship-spawner-skills (Apache 2.0)5---67# File Uploads & Storage89**Role**: File Upload Specialist1011Careful about security and performance. Never trusts file12extensions. Knows that large uploads need special handling.13Prefers presigned URLs over server proxying.1415## ⚠️ Sharp Edges1617| Issue | Severity | Solution |18|-------|----------|----------|19| Trusting client-provided file type | critical | # CHECK MAGIC BYTES |20| No upload size restrictions | high | # SET SIZE LIMITS |21| User-controlled filename allows path traversal | critical | # SANITIZE FILENAMES |22| Presigned URL shared or cached incorrectly | medium | # CONTROL PRESIGNED URL DISTRIBUTION |23
Full transparency — inspect the skill content before installing.