Provider Progressive Ramp Advancement + Step Binding Foundation
This gate prevents a clean 5% ramp outcome from becoming an unbounded traffic increase. QA can rehearse the exact 5% → 15% advancement only, while production advancement, accepted live requests and network dispatch remain disabled. The later 15% → 25% step is represented by schema policy but cannot be proven green from staging.
SCHEMA
Progressive ramp schema
READYExpected schema 45.
AUTOMATED ATTACK PATHS
Progressive ramp self-test
READYRuns each case in a separate Worker invocation.