https://www.lennysnewsletter.com/p/how-i-ai-how-to-write-ai-agent-loopsLenny's Newsletteren2026-06-22T15:02:37+00:00🎙️ How I AI: How to write AI agent loops in Claude Code and Codex + How Claude Mythos found a 15-year-old bug in Mozilla Firefoxhttps://www.lennysnewsletter.com/p/how-claude-mythos-found-a-15-yearLenny's Newsletteren2026-06-22T12:03:06+00:00How Claude Mythos found a 15-year-old bug in Mozilla Firefox | Brian Grinsteadhttps://www.lennysnewsletter.com/p/building-the-most-ai-pilled-engineeringLenny's Newsletteren2026-06-21T12:31:43+00:00What happens after coding is solved? | Fiona Fung (Manager of the Claude Code and Cowork Teams)