Why it matters

Egress filtering catches leaks. Understanding shapes output safety.

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The architecture

PII detectors: Presidio, custom.

Content classifiers.

Structure validation.

Egress filter flowLLM outputcandidateFilterPII + safety + schemaDeliver or blockbased on rulesLayered: PII detection + content safety + schema validation + business rules
Egress filter.
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How it works end to end

PII: Presidio, Amazon Comprehend.

Content: Llama Guard, ShieldGemma, moderation APIs.

Schema: JSON Schema.

Business rules.