The existing distance journeys all skip when no school has a published
figure, which is right when the feature is off — and wrong when it is
supposed to be on and is silently broken, because that shows up as a
green run full of skips. The new gate fails in exactly that case.
Feature state is read from the data, not from /api/flags: the public
proxy denies that path on purpose, since it names unreleased features.
Presence of the admission_distance key is the observable effect.
Verified against staging, where the feature is currently on: the on-gate
passes, the off-gate skips, the existing eight distance journeys are
unaffected.
One honest caveat — the /api/flags check passes on staging today because
that image predates the endpoint, not because the denylist works. The
denylist itself is covered by the jest unit test; this is defence in
depth and becomes a real assertion once deployed.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015mWQnpye9F299NVRCCSRvj
