genkit_hybrid 0.2.0

Provider-agnostic hybrid routing for Genkit — combine on-device and cloud models behind one routing policy.

Changelog

0.2.0

• Add CapabilityStrategy: route by request-required capabilities (vision/audio/tools/json).
• Add CostStrategy: budget-gate a premium branch against an app-supplied signal.
• Add cascadeModel: escalate to a premium branch when an accept predicate rejects the cheap response (non-streaming v1).

0.1.1

• Bump genkit to ^0.15.1 (from ^0.14.1). No API or behavioral changes; 32 tests green.

0.1.0

Initial release.

• hybridModel(branches, strategy) — combine N named Genkit Model actions behind one routing policy; returns an ordinary Model.
• hybridModelOnDeviceCloud(onDevice, cloud, strategy) — binary façade with kOnDevice / kCloud keys.
• RoutingStrategy interface returning an ordered list of branch keys (single = pre-routing, multi = fallback, empty = no decision).
• Built-in strategies: PreRoutingStrategy, FallbackStrategy, ConnectivityStrategy, InputSizeStrategy, and combinators FirstMatch, WithFallback.
• Streaming fallback only before the first emitted token.
• Transient-vs-permanent error policy: fallback on availability errors, immediate propagation of permanent ones.