Felix Wahl, backend engineer in Hamburg, working toward AI engineering in .NET and Python.
Posts go up while the experiment is still running. They carry a status, and they change when the result does.
Asking a model to stay grounded in its sources is a request, and a request can be declined. This experiment moves the check out of the prompt and into the loop, where a failed check blocks the answer instead of annotating it. Open question: what the check should measure when the wording differs but the meaning holds.
dotnet
grounding
eval
started 2026-06-10· partial answer open· concluded open
A knowledge-base answer without sources is a claim, not a result. The experiment builds retrieval in .NET where every sentence in the answer can be traced back to a retrieved chunk. Still open: what happens when two chunks contradict each other and both look relevant.
dotnet
rag
started 2026-04-02· partial answer open· concluded open