The topology workflow's Cloud SQL gate carried a hard-coded 400 for the
instance's tier default while the consumer contract records the value
measured on the live instance (SHOW max_connections = 500, 2026-09-16,
#21163). The gate compares the two and the first production plan run
(35815654836) failed silently on that mismatch before Terraform ran.
The verified default now lives beside the tier and version it is verified
for, as VERIFIED_DEFAULT_MAX_CONNECTIONS, so the contract and the workflow
are two independent records of the same measurement and the gate keeps
its cross-check. The test pins the new source and forbids a bare literal.
Claude-Session: https://claude.ai/code/session_01JNnE9qzUZMMnqpZWCqM3nb
Jinwoo Hong
483fa0aca2