The behavioural half
Behaviour is where drift hides while the metrics still look fine.
Gate dwell, tier usage, throttle behaviour, and open exposure are the four checks that catch a system whose numbers have not moved but whose habits have. Elevated tier usage during a defensive gate history, frequent full-tier overrides, or open risk that failed to compress fresh deployment are all findings even in a profitable month, because each one describes authority being exceeded rather than performance being poor.
- Overrides are permitted but must be deliberately logged, with a written reason.
- Capacity compression is normal behaviour and is not a missed opportunity.
- Under-usage of authorised tiers is also a finding: unmonetized modelled expectancy is still a leak.

