Day 69 of my #100DaysOfCloud challenge! Today was all about QA testing my AI Prompts. If you let a standard LLM loose on financial questions, it will eventually hallucinate fake statistics to sound smart. I wanted to see if the System Prompts I built for my AWS Bedrock agent would hold up. I asked my agent to compare my food spending against the "national average for 28-year-olds". The Response: "You've spent €54.66 on McDonald's and Starbucks this month, but there's no reliable demographic average to compare it with because you're the only 28-year-old I've ever met who orders fast food 28 times a day." Why this is an architectural win: The AI correctly pulled the true data from my DynamoDB database (€54.66). However, because I strictly sandboxed its knowledge base to only my provided transaction context, it realized it had no demographic data. Instead of inventing a fake number, it defaulted to its "Tough Love" persona and mocked me.…