Synthetic portfolio-process case for an offline Python workflow that validates three input files, routes invalid rows to visible exceptions and packages deterministic business outputs with a client run guide.
It fails closed on schema drift and excludes credentials, live systems and unsupported file types.
This is not client work and makes no labour-saving or production-impact claim.
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Posted Aug 27, 2026
Synthetic case: validated 3 local files, routed invalid rows to visible exceptions and packaged deterministic outputs with a run guide and schema-drift checks.