https://mattiaperetti.it/blog Senior backend engineer writing about backend architecture, application security, and the shift toward agentic AI systems. en-us undefined (Mattia Peretti) undefined (Mattia Peretti) Tue, 07 Jul 2026 00:00:00 GMT https://mattiaperetti.it/blog/okf-and-the-two-brains-of-an-llm-agent https://mattiaperetti.it/blog/okf-and-the-two-brains-of-an-llm-agent Google quietly published OKF, a plain markdown-plus-frontmatter format for agent knowledge, built on a pattern Karpathy sketched in a gist months earlier. Working through both taught me to stop thinking of an LLM as one brain and start thinking of it as two. Tue, 07 Jul 2026 00:00:00 GMT undefined (Mattia Peretti) aiagentic-aillmmemoryokf