Why Shadow Mode should come before live automation
Validate parsing, pricing, filters, messages, and capacity decisions without submitting marketplace actions.
Observe real requests safely
Shadow Mode processes live request data through the parser, game schema, pricing profile, filters, limits, and assignment logic, then records the intended action without submitting it. This reveals missing fields and bad assumptions that fixtures may not cover.
The result should show a clear price breakdown or skip reason.
Compare against manual decisions
Review a meaningful sample across games, services, regions, ranks, and quantities. Compare the intended result with what an experienced operator would do. Fix schema or rule errors before enabling the external action.
A game can remain configurable while one capability is still in Shadow Mode.
Roll out gradually
Enable a small allowlist, monitor confirmed submissions, duplicate rate, rejection rate, and latency, then expand. Keep a game-level kill switch and minimum extension version.
Shadow Mode is not proof that every external action will succeed, but it reduces avoidable logic errors before launch.