Lenny's Newsletter
6/22/2026

🎙️ 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 Firefox
Short summary
Lenny's Newsletter covers AI agent loop development in Claude Code and Codex, and highlights how Claude Mythos discovered a longstanding bug in Mozilla Firefox. The episode content provides technical depth; this summary alone lacks actionability.
- •Two topics: writing AI agent loops with Claude Code and Codex
- •Claude Mythos uncovered a 15-year-old Firefox bug
- •Full episode transcript needed for technical details
Generated with AI, which can make mistakes.
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