Controller: {"enable_thinking": false, "image_scale": 10, "invoke_on": "frame_change", "kind": "vlm_direct", "max_tokens": 64, "model_id": "Qwen/Qwen3.8-27B", "prompt_version": 1, "reasoning_effort": null, "temperature": 0.0}

Key frames: each decision's starting frame with the click it produced (amber = proposal before binding, red = committed, grey = suppressed), then the screen at each arrival A (green = valid).
You control a graphical interface by clicking. You are shown one screenshot of a 640x480-pixel screen (origin top-left, x to the right, y down). A bright white square target appears at an unknown location. If the target is visible, answer with action "click" and the integer pixel coordinates of its center. If no target is visible, answer with action "wait". Answer with the JSON object only. [user] Screenshot attached. Click the target's center or wait.
| # | B | model done B→D | model response (raw) | parsed | action (canvas px) | D (commit) | A (receipt) | out tokens |
|---|---|---|---|---|---|---|---|---|
| 1 | 531 ms | 5,745 ms 5.21 s | {"action": "click", "x": 125, "y": 390} | click img (125, 390) | {'kind': 'click', 'x': 12, 'y': 39} | 5,745 ms | 5,765 ms · INVALID | 23 |
| id | event | task time | harness time |
|---|---|---|---|
| 1 | target_appears | 500 ms | 500 ms |
345 observations published; first frame depicting the target published at 530 ms. Raw trace: eval_w8000000000_s200_live.jsonl.