# Confidence-Gate Halt Rate — Definition of Success

> KPI: Confidence-Gate Halt Rate
> Target: not a committed target (operational signal)

**What this number means:** how often the confidence gate itself halted
a run (band = block), independent of HITL blocks. The gate is the AI's
self-halt; HITL is the human gate. This distinguishes the AI's
self-regulation from human escalation.

**How it's computed:** `count(runs WHERE confidence_band = 'block')` ÷
`total runs`.

**What "good" looks like:** a low but non-zero rate means the gate is
working (catching genuinely uncertain runs) without being overly
conservative (blocking everything).