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Lenny's Newsletter
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

🎙️ 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

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