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Emulator and Reward Flow

The emulator browser is the center of W8-RL. All evaluation paths share the same reward flow.

Reward flow​

Task container -> WootzApp browser -> ChromiumRL signals -> Reward bundle

EnvActor drives the browser through CDP and captures:

  • screenshots
  • DOM signals
  • ChromiumRL metrics

These are combined into the reward bundle used by SkyRL, OpenEnv, and Tinker.

Browser reset​

The emulator is reset between tasks to avoid state bleed and CDP instability. The scripts handle this automatically.

Next Steps​