All 18 Studio operations declare `passthrough` (`z.unknown()`) input and
output validators. The choice is deliberate and commented in
`tech-log-studio-contract-contribution.ts`, but it was recorded nowhere a
spec reader looks, and it compounds the cycle's own non-goal: with no running
backend, MSW returns whatever the test author wrote and nothing compares it
to the canonical schemas, so `CONTRACT_VIOLATION` can never fire for a
success-payload shape mismatch. Compile time is currently the only layer that
catches a shape regression.
Recorded in §Task 12 완료 상태 beside "no running-backend verification" -- the
same class of risk -- with the two options for the backend-comparison cycle.
No code change.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
