HKHarshavardhan Katkaminharshakatkam.dev·6h ago · 9 min readDay 01: Why your first agent should be 40 lines, not a frameworkThe first agent I ever got working, I did not understand. I had installed a framework, pasted eleven lines out of its quickstart, and watched a correct answer appear. Then I changed the prompt slightl00
HKHarshavardhan Katkaminharshakatkam.dev·3d ago · 24 min readDay 00a: Six ideas that explain every AI agent, before any codeSomewhere in the first hour of reading about AI agents, you meet a diagram. A box labelled Thought, an arrow to Action, an arrow to Observation, and an arrow curling back to the start. The captions sa42K
HKHarshavardhan Katkaminharshakatkam.dev·3d ago · 7 min readDay 00: Learn AI agents by building one, in 30 daysSomeone hands you an empty file and says: build an agent. Perhaps you have read the explainers and can recite that an agent is "an LLM in a loop with tools". Perhaps you have read none of them, and th48BKJI
HKHarshavardhan Katkaminharshakatkam.dev·Jul 4 · 10 min readHTTP Just Got a New Method — Meet QUERYIf you've ever designed a search endpoint, filter API, or complex read operation — you've hit the wall every backend engineer eventually hits. GET can't safely carry a body. POST isn't safe, idempoten21S
HKHarshavardhan Katkaminharshakatkam.dev·Jun 4 · 17 min readThe Senior Developer Mindset: How to Turn Abstract Ideas Into Production Code The single skill in my career that has compounded the most isn't a language, a framework, or a system design pattern. It's the ability to take a vague, half-formed idea — a feature request from a PM, 00
