Simon Willison’s Weblog

23rd January 2026

TIL Cloudflare response header transform rules — I serve Python files from my `tools.simonwillison.net` subdomain, which is a GitHub Pages site that's served via Cloudflare. For example:

None

Posted 23rd January 2026 at 3:08 pm

Recent articles

Meta's new model is Muse Spark, and meta.ai chat has some interesting tools - 8th April 2026
Anthropic's Project Glasswing - restricting Claude Mythos to security researchers - sounds necessary to me - 7th April 2026
The Axios supply chain attack used individually targeted social engineering - 3rd April 2026

This is a beat by Simon Willison, posted on 23rd January 2026.

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