Does it support Cloudflare R2?

Yes, it includes specific optimization patterns and configurations for Cloudflare R2 as well as AWS S3 and other S3-compatible storage providers.

What is the benefit of using presigned URLs with this skill?

This skill prefers presigned URLs because they allow clients to upload directly to the cloud provider, significantly reducing server resource consumption and improving upload speed.

Can it handle large file uploads?

Absolutely. It specializes in multipart upload logic and presigned URLs, allowing the application to handle large files efficiently without blocking the server process.

How does this skill improve file upload security?

It enforces strict security protocols including magic byte verification to prevent spoofing, filename sanitization to block path traversal, and mandatory upload size limits.

File Uploads & Cloud Storage

Name: File Uploads & Cloud Storage
Author: claudiodearaujo

byclaudiodearaujo

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Cloud Infrastructure

Manages secure, high-performance file uploads and cloud storage integrations using S3, Cloudflare R2, and presigned URLs.

This skill equips Claude with specialized knowledge for architecting and implementing robust file upload systems. It focuses on modern cloud storage best practices, such as leveraging presigned URLs to avoid server bottlenecks, handling large multipart uploads, and ensuring security through magic byte verification and filename sanitization. Whether you are setting up an AWS S3 bucket or optimizing image uploads for Cloudflare R2, this skill provides the implementation patterns needed for scalable, production-grade storage solutions while avoiding common pitfalls like path traversal and unvalidated file types.

Key Features

011 GitHub stars

02Image optimization and efficient media storage strategies

03Cloud storage integration for AWS S3 and Cloudflare R2

04Secure presigned URL generation for direct client-side uploads

05Security auditing for magic bytes, size limits, and path traversal

06Multipart upload orchestration for large file handling

Use Cases

01Architecting large-scale video or dataset uploads using multipart S3 transfers

02Implementing a secure user avatar upload system with real-time image validation

03Setting up private, time-limited access to files via secure presigned URLs

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add claudiodearaujo/sistema-de-narra-o-de-livro file-uploads

For use in Claude.ai and ChatGPT

Download Skill