Crate leanr_rag_gateway 

Policy-Verified RAG Gateway

A drop-in gateway that only returns RAG answers proven to respect:

• Source policies
• PII masking
• Retention rules
• Cost/latency SLAs

KPIs

• Blocked unsafe requests: 100%
• p99 latency: <150ms
• Audit acceptance: 100%

Re-exports

pub use policy::Policy;

pub use policy::PolicyEngine;

pub use policy::PolicyViolation;

pub use proof::ProofCertificate;

pub use proof::ProofKind;

pub use router::CostAwareRouter;

pub use router::Lane;

pub use router::RoutingDecision;

pub use audit::AuditLog;

pub use audit::AuditEvent;

Modules

audit

Audit logging for RAG Gateway

policy

Policy engine for access control and PII masking

proof

Proof certificates for verified RAG responses

router

Cost-aware routing for multi-provider LLM access

Structs

AccessCheckResult

Citation

RagGateway

RAG Gateway with policy verification

RagQuery

RAG Query with metadata

RagResponse

RAG Response with proof certificate

ResponseMetrics

Enums

GatewayError