I Built an AI That Reads My Dog's Body Language — Here's the Python Code 🐕

My dog Biscuit has been acting weird for weeks. Tail low, ears back, avoiding his food bowl like it owed him money. I Googled everything. Got 47 different answers. Half said "normal." Half said "vet, immediately." So I did what any developer would do: I built an AI to figure it out. Here's exactly how — and why it works better than panicking on Reddit at 2am. The Problem With "Is My Pet Okay?" Vets are expensive. Google is terrifying. And most pet symptom checkers are glorified FAQ pages from 2009. What if you could describe your pet's behavior in plain English and get an actual intelligent response — not just a symptom list? That's exactly what I built. The Stack Python 3.11 OpenAI GPT-4o (with vision for photo analysis) FastAPI for the backend A carefully engineered system prompt (this is the secret sauce) Step 1: The System Prompt (Don't Skip This) Most AI pet tools fail because their prompts are garbage. Here's what actually works: SYSTEM_PROMPT = """ You are a veterinary behavior