Simon Willison’s Weblog

25th October 2025

If you have an AGENTS.md file, you can source it in your CLAUDE.md using @AGENTS.md to maintain a single source of truth.

— Claude Docs, with the official answer to standardizing on AGENTS.md

Posted 25th October 2025 at 4:57 am

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 quotation collected by Simon Willison, posted on 25th October 2025.

ai 1955 generative-ai 1735 llms 1702 anthropic 267 claude 264 coding-agents 190 claude-code 104