Module auto_routing 

Legacy model=auto wire types, kept for compatibility only.

The types live in lean_ctx_protocol and are a frozen experimental surface (security/public-protocol-surface-freeze-v1.json: not removed before the next protocol major). The Engine re-exports them and does nothing with them: the proxy never selects, ranks or substitutes a model or provider, and holds no gate that would admit such a selection. The former cost-improvement gate (check_auto_eligibility) is removed.

Structs

AutoRoutingConfig

Runtime configuration for the public model=auto surface.

AutoRoutingEvidence

Observed shadow-scheduler performance used to evaluate SchedulerGate.

AutoRoutingRequest

Request envelope sent to an auto-routing boundary.

RoutingDecision

Candidate selected by a control plane, with a portable fallback reference.

RoutingReceipt

Receipt fields that preserve the requested and selected model lineage.

SchedulerGate

Evidence thresholds that a shadow scheduler must satisfy before auto-routing.

Enums

RoutingMode

Requested routing behavior at the public client or gateway boundary.