GMT Router

Overview

gmtrouter is a selection algorithm for personalized routing based on prior history and a learned model.

It aligns to config/algorithm/selection/gmtrouter.yaml.

Key Advantages

• Supports per-user or per-tenant personalization.
• Keeps the personalization model path explicit in config.
• Lets one route opt into history-aware selection without affecting others.

What Problem Does It Solve?

Some workloads need selection to reflect prior user interactions instead of global averages. gmtrouter adds that learned personalization layer to the matched decision.

When to Use

• the route should adapt to user or tenant history
• you have a trained selector artifact to load
• static or feedback-only ranking is not enough for the workload

Configuration

Use this fragment inside routing.decisions[].algorithm:

algorithm:
  type: gmtrouter
  gmtrouter:
    enable_personalization: true
    history_sample_size: 50
    model_path: models/gmtrouter.pt