A robust routing architecture built on the Google Agent Development Kit (ADK 2.0) and deployed to Vertex AI Reasoning Engine (Agent Engine). It uses a lightweight Gemini 3.1 Flash-Lite classifier to dynamically route user queries to the optimal Claude specialist tier (Haiku 4.5, Sonnet 4.6, Opus 4.8, or Fable 5).
Signals
PythonApache-2.0created 2026-06-13by mbettan
Fable-5 attribution
References “Fable 5” with AI context (90% confidence)