# Anthropic’s Project Glasswing—restricting Claude Mythos to security researchers—sounds necessary to me

<https://simonwillison.net/2026/Apr/7/project-glasswing/#atom-everything>

- Host: [simonwillison.net](https://links.thingelstad.xyz/hosts/simonwillison.net/)
- Saved: April 9, 2026 (2026-04-10T02:09:55Z)
- Record: https://links.thingelstad.xyz/links/642a7b3884b4/
- JSON: https://links.thingelstad.xyz/links/642a7b3884b4.json

## Facts

- Kind: [Page](https://links.thingelstad.xyz/kinds/page/)

## Saved twice

- [Anthropic’s Project Glasswing—restricting Claude Mythos to security researchers—sounds necessary to me](https://links.thingelstad.xyz/links/db3d2f24908f/) (simonwillison.net, April 9, 2026)

## Same host

- [Andrej Karpathy talks about "Claws"](https://links.thingelstad.xyz/links/ae38530b7263/) (simonwillison.net, February 26, 2026)
- [Interactive explanations - Agentic Engineering Patterns - Simon Willison's Weblog](https://links.thingelstad.xyz/links/92c76d5af4ef/) (simonwillison.net, March 3, 2026)
- [A quote from claude.com/import-memory](https://links.thingelstad.xyz/links/0c55a3e7235b/) (simonwillison.net, March 3, 2026)
- [Anthropic’s Project Glasswing—restricting Claude Mythos to security researchers—sounds necessary to me](https://links.thingelstad.xyz/links/db3d2f24908f/) (simonwillison.net, April 9, 2026)
- [Changes in the system prompt between Claude Opus 4.6 and 4.7](https://links.thingelstad.xyz/links/1d174141f23a/) (simonwillison.net, April 21, 2026)

## Saved the same week

- [Thoughts on slowing the fuck down](https://links.thingelstad.xyz/links/ca0251d8f236/) (mariozechner.at, April 9, 2026)
- [How Fast Will A.I. Agents Rip Through the Economy? | The Ezra Klein Show - YouTube](https://links.thingelstad.xyz/links/70e0c173f591/) (youtube.com, April 9, 2026)
- [mempalace: The highest-scoring AI memory system ever benchmarked. And it's free.](https://links.thingelstad.xyz/links/dfb6164b7d5c/) (github.com, April 9, 2026)
- [Comfort Makes You Stupid - Leadership Freak](https://links.thingelstad.xyz/links/39567ff10ed8/) (leadershipfreak.blog, April 9, 2026)
- [Attention and effort | Seth's Blog](https://links.thingelstad.xyz/links/9e3e60149150/) (seths.blog, April 9, 2026)

## Elsewhere

- Wayback Machine: https://web.archive.org/web/*/https://simonwillison.net/2026/Apr/7/project-glasswing/#atom-everything