Karpathy's free 2-hour agent lecture, framed by Harness-Loop-Graph guide
GregCook2011 · x · 2026-11-09
Andrej Karpathy (8 years across OpenAI and Tesla) released a free 2-hour lecture last week distilling everything he knows about building agents: Agents → Harness → Loops → Graphs. Commenters note some bootcamps charge $15K and teach less.
A companion article breaks agent engineering into three layers: Harness (the engineering wrapper around the model), Loop (keeping the agent running), and Graph (structured task orchestration). It argues most people fail by endlessly rewriting prompts or swapping models, when these three layers are what actually decide whether an agent works — and shows how to build each.
More from coding & agent
- Dev renders stunning animation in pure Python with Opus 5.5, zero 3D assets — Eric520CC · 2026-11-09
- REA Author Open-Sources 20+ Repos: An Agent-Powered Reverse Engineering Studio From Apps to Binaries — nikola_mr64990 · 2026-11-09
- Agent autonomously trained and deployed a local labeling model while owner was on vacation — max_paperclips · 2026-11-09
- 'Headless browser' dubbed the creepiest tech term as agents inspect 120 cards — yuwen_lu_ · 2026-11-09
- edge-arm-bridge: mirror Edge profiles to native arm64 Chromium so agents run at native speed — unixterminal · 2026-11-09
- Agent Buddy: an ESP32 animated companion that shows your AI coding agents' live status — DanWahlin · 2026-11-09