How do you check whether an AI answer is really supported by your documents?

I'm building Musuw, a personal knowledge workspace with document Q&A, source citations, AI-organized Wiki pages, and a knowledge graph. Our Product Hunt launch is scheduled for September 19.

A useful way to test document Q&A is to start with something you can check yourself:

1. Upload a short document you know well, with a specific date, number, or definition.

2. Ask one narrow question about that fact.

3. Open the citation and compare the answer with the original passage, including units and qualifications.

4. Ask a question whose answer is absent, and check whether the response acknowledges the gap.

A citation helps only if it supports the claim. Which sources would you most want to try this with: research papers, product documentation, or personal notes?

Musuw has a free plan if you'd like to try it: https://musuw.com/

I'd welcome feedback on citation quality and the Wiki and graph workflow.