# Claude Fable 5.1 (Claude Code, medium reasoning) · attempt 3

Attempt 3 after the continuation at 21:31:01; 227 s, 8 commands, the furthest of Claude's attempts. Operator brake at 21:36:35: too little room for the turn at (D), pointed at the planter island.

Collection `2026-09-17-cone-course-trial`, group `claude-fable-5.1`, result `F F F`. Video starts 2026-09-17T21:31:08.436+00:00 and runs 329.15 s at 20 fps.

| file | what |
| --- | --- |
| `road.mp4` | narrow road camera, continuous, from 3 s before the model's first tool call to 2 s after its last engagement |
| `wide.mp4` | wide road camera, same window (frame-aligned with road.mp4) |
| `road-annotated.mp4` | road.mp4 with the active tool call, its reason, speed and measured steering burned in |
| `calls.srt` | the tool calls as subtitles, same timing as timeline.json |
| `timeline.json` | `t` in seconds of video: every tool call (arguments, reason, outcome, the frames it saw), 5 Hz telemetry, segment bounds |
| `frames/` | every image `observe` returned to the model, full resolution, named `<video frame>-<camera>-<hash>.jpg` |

Segments (traces/segments/<id>/ in Git: 10 Hz telemetry, every command with the model's reason, thumbnails, chat/):

- `2026-09-17-ca2652` — 21:30:59→21:36:35 UTC, 227 s, 8 set_motion, peak 2.2 m/s, ended by operator_brake, 18 frames