What file formats are supported for optimization?

It automates conversion to modern formats like WebP and AVIF using the format=auto parameter, ensuring the best balance of quality and compression for the user's browser.

How do I secure private images?

The skill details how to implement signed URLs using HMAC-SHA256 tokens and expiration timestamps to prevent unauthorized access to private image variants.

Can I use this with Cloudflare Workers?

Absolutely. The skill includes patterns for the cf.image object to perform on-the-fly transformations within Workers while preventing common request loop errors.

How does this skill handle Cloudflare CORS errors?

It provides specific implementation patterns for Direct Creator Uploads, ensuring multipart/form-data is used correctly and API tokens are kept server-side to avoid common preflight failures.

Does it support AI-based features?

Yes, it includes guidance for the 2025 AI Face Cropping updates, allowing for precise GPU-based face detection and zoom control in transformations.

Cloudflare Images & Transformations

Name: Cloudflare Images & Transformations
Author: jezweb

byjezweb

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117

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Cloud Infrastructure

Manages image storage, AI-powered transformations, and secure delivery using the Cloudflare Images API and Workers.

This skill empowers Claude to architect and implement robust image handling workflows using Cloudflare Images. It provides expert guidance on uploading media, generating signed URLs for private content, and performing advanced transformations such as AI face cropping and automatic format optimization (WebP/AVIF). By incorporating best practices for Workers integration and specific fixes for common CORS and API errors (9401-9413), it ensures production-ready image delivery with high performance and minimal latency.

Key Features

01Secure Direct Creator Uploads with pre-configured CORS error prevention

02Cloudflare Workers Integration using the cf.image object for edge resizing

03117 GitHub stars

04Automatic Format Optimization for WebP and AVIF delivery

05HMAC-SHA256 Signed URL generation for private image security

06Advanced Image Transformations including AI face cropping and smart gravity

Use Cases

01Building a user profile system with secure avatar uploads and AI-based face cropping

02Implementing a secure media distribution platform using dynamic variants and signed URLs

03Optimizing e-commerce product galleries for multi-device performance and high-speed delivery

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add jezweb/claude-skills cloudflare-images

For use in Claude.ai and ChatGPT

Download Skill