I built an agent that audits its own memory. Then I caught my own evidence file lying. Building Mnemo for the Global AI Hackathon with Qwen Cloud — Track 1: MemoryAgent A memory agent that retrieves a stale fact confidently is worse than one that retrieves nothing. An empty recall forces the agent to ask, observe, or abstain. A stale recall hands it a plausible lie and a reason to act on it. That framing is what I built Mnemo around, and it's also — with more irony than I would have ...