svc-nav/docs/GUIDELINES.md

type

type
default

Navigation service guidelines

1. Routing providers stay behind one interface

• Nothing outside the provider boundary may reference Valhalla types, Valhalla URLs, or Valhalla's response shapes.
• A cloud provider (GCP or equivalent) must be addable without changes to the bridge, the published topics, or any display.
• Local Valhalla is the default because it works with no signal; a cloud provider is an option, never a dependency.

2. Guidance is published, routes are requested

• Live guidance goes onto yukart/nav/guidance, retained.
• Route requests are request/response and are served over HTTP, not MQTT.

3. To be added