LLM Guardrails Gateway Architecture

Data & AI Pipelines diagram · made in Skemio

Architecture diagram of an LLM Guardrails Gateway showing inbound prompt inspection, inference execution, outbound PII redaction, and audit logging.

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What it shows

Pre-call filters block prompt injections before consuming costly tokens.
Post-call redaction scrubs PII and toxic output before reaching users.
A dedicated gateway decouples safety policies from application code.

The takeaway

Never expose foundation models directly; enforce bi-directional input and output safety boundaries.

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