Compare the local development environment with the intended test or production environment without changing either one.

Examine documented runtime versions, configuration names without secret values, data sources, identity provider, database, object storage, network exposure, domains, certificates, background jobs, logging, monitoring, scaling, and deployment process. Cite repository and approved environment evidence.

Report matches, known differences, unverified assumptions, and differences that could make local success misleading. Do not copy production data or credentials into local development. Recommend the minimum safe parity needed for this mission.