Kush Bhatnagar

Learn. Build. Explain.

Always learning. Sometimes building. Often explaining.

Hi, I’m Kush 👋

Technical Product Manager · 17+ years in tech · 5+ years in product · leading an enterprise AI platform

I lead an enterprise AI platform by day and build my own AI products after hours. This blog is my learning, in public. Everything starts with learning: some of it I build with, some of it I explain in plain words, so product people and non-technical folks in tech can follow AI and product concepts without the jargon.

Learn Tech Digest Digital Dhaba every Thursday: what's happening in AI and tech, and why it matters. Learn + Build Build Log Products I'm building in public: the decisions, the mistakes and the lessons. Learn + Explain Concept Breakdown Comic-style breakdowns of ML, GenAI, cloud and product concepts. No jargon. Learn + Explain Learning Notes My own notes on papers, essays and talks I've read, in plain words.
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When two AIs grade each other, they can agree their way into wrong answers

Two copies of one model that write and grade each other’s questions can look healthy while agreeing on more wrong answers.

October 17, 2026 Â· 4 min Â· Kush Bhatnagar

What Turns an LLM into an Agent: The Tool Call

Hint: it’s just a waiter. How a tool call lets an LLM check the real world before it answers, the first step to an agent.

October 8, 2026 Â· 3 min Â· Kush Bhatnagar