# Simulation Backend Router

Open:

- [backend support matrix](../../.agents/context/simulation/backend-support.md)
  to check current capabilities and exclusions
- [backend extension task](../../.agents/context/simulation/backend-extension.md)
  when adding representation methods
- [time and noise reference](../../.agents/context/simulation/time-and-noise.md)
  for background evolution or noninstant operations

Do not infer cross-backend support from a shared symbolic operation. Test the
specific representation and unsupported boundary you change.
