Lee Rob's Stanford CS146S lecture breaks down how always-on proactive agents like Bot work

blaizedsouza · x · 2026-10-12

Vercel's Lee Rob lectured at Stanford CS146S on how always-on, proactive agents work, using his product @Bot as the case study. Timestamped sections cover how we got here (2:35), what changed in the models (6:13), inside an always-on agent (10:06), the harness (18:07), context engineering (27:26), and where this is going (34:26). LangChain founder Harrison Chase endorsed the talk and shared extracted slide screenshots for easy follow-along, noting he's writing up his own takeaways.

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