What Comes Back to Claude Stats Only, Never Raw Data

Data boundary demonstration • In-situ Spark aggregation • Zero row egress

Phase 0: Initializing | 0.0s / 8.0s
0s 8.0s (Loop)
Left: In-Cluster Isolation 50,000 Rows

Raw Iceberg tables, customer invoices, and PII are physically retained inside private worker memory and never cross VPC borders.

Center: In-Memory Funnel Aggregations

Distributed executors execute SQL reductions (counts, null rates, timestamps) directly on the nodes.

Right: Sanitized Metadata Egress Stats Only

Only 4 concise summary scalars cross the Bastion boundary into Claude Code, guaranteeing zero customer data leakage.