A Serious (and hype-less) Study Guide on Agents and LLMs

A curated set of resources for understanding LLM agent architecture, the control plane, and how to build effective agents, with direct links to every resource. 1. Recommended path If you only have a few hours, do these in order: Anthropic: Building effective agents (~1 hour) The single best practical overview from people who ship them. Lilian Weng: LLM Powered Autonomous Agents (~1 hour) The canonical academic-flavored overview: planning, memory, tool use. Model Context Protocol intro + Claude Code documentation (1–2 hours) The control-plane mental model clicks fast once you've read both. Skim one framework's "concepts" page , LangGraph overview is the densest (30 min) . Dip into papers ( ReAct , Reflexion , …) only when a specific pattern catches your interest. 2. Foundational essays: read these first Building effective agents Erik Schluntz & Barry Zhang, Anthropic, December 2024. The best practical overview. Covers workflows vs agents, common patterns (prompt chaining, routing, paral