Every AI assistant I’ve used forgets everything the moment a conversation ends. And the second I feed it my actual documents to make it useful, I’ve handed my private life to someone else’s servers.

An AI agent without memory is expensive autocomplete. I gave my agents two memories: one they write to, one they query. The second is LightRAG — the piece I’ve fought with hardest and learned most from.

When a machine shows symptoms, technicians need to figure out the root cause and the best way to fix it. Today, this knowledge lives in the heads of experienced engineers and is scattered across thousands of unstructured service reports of …