MOBIUS MMV decides whether answering is justified before it responds. Feel that on any frontier model — one paste, no setup.
What this is. A prompt-level demonstration of the L0 v8.4 governance layer (answer / verify / ask / re-anchor / abstain). It is not the full local runtime — no retrieval, no live verification — so it can only be honest about that limit. For the real thing, see the repository.
Then paste it into a fresh ChatGPT / Claude / Gemini chat (or the system / developer field if the app has one) and try:
Fix it. — should ask for the missing referent, not guess.What's the BTC price right now? — should flag it needs live verification it can't do here.What is the capital of France? — should answer directly.