When should an assistant interrupt you? I'm testing a "wait for hesitation" rule

Earlier testers said anything under ~5 seconds felt "too early", so I raised the threshold and added a 10-second grace period at the start. I'd like to know if that fixed it. Prototype (1 min, no signup): quiet-hci.pages.dev Does it match how you'd want a tool to behave, or is "wait for hesitation" the wrong signal?