I built a RAG engine that refuses to answer with garbage context (and it cost me way more debugging than expected)

Most RAG demos on GitHub do the same thing: embed some chunks, cosine-similarity search, stuff the top-k into a prompt, done. I built one of those first too. Then I actually tried to use it on messy real-world docs and it fell apart in three specific ways.

Source: [Dev.to](https://dev.to/gabaoun/i-built-a-rag-engine-that-refuses-to-answer-with-garbage-context-and-it-cost-me-way-more-debugging-3k21)