Five papers at a time: evidence, limitations, and practical implications.https://modelfieldnotes.com/enhttps://modelfieldnotes.com/research/five-foundations-for-ai-agents/https://modelfieldnotes.com/research/five-foundations-for-ai-agents/Reasoning and action, learned tool use, context, reflection, and reliability. Five papers that help explain the systems we build.Sun, 20 Sep 2026 00:00:00 GMT