{"action_config_fields":{"action_id":"Stable zero-based source action identifier.","action_text":"Subtask instruction.","end_frame":"Exclusive retained-frame end index.","is_mirrored":"Whether this interval belongs to a mirrored episode.","is_negative_episode":"Negative-example marker.","is_reversed":"Temporal reversal marker.","skill":"Leading action skill label.","start_frame":"Inclusive retained-frame start index.","uses_task_text":"Whether action_text reuses the full task prompt.","zarr_end_idx":"XR compatibility alias of end_frame; no Zarr object is read.","zarr_start_idx":"XR compatibility alias of start_frame; no Zarr object is read."},"compatibility":"XR compact episode metadata","fields":{"action_config":"Frame-aligned annotated subtask intervals.","action_valid_mask":"Validity mask for action channels.","episode_id":"Source Digital Twin episode identifier.","episode_index":"Contiguous LeRobot episode index.","initial_scene_text":"One-element task prompt list for XR compatibility.","is_problem_episode":"Source-level problem marker; false when absent.","length":"Number of retained frames after deterministic trimming.","state_valid_mask":"Validity mask for observation.state channels.","task_index":"Task registry key used by tasks.jsonl and Parquet.","tasks":"One-element list containing the complete episode task.","variation":"Public dataset origin label, always digital_twin.","variation_name":"Complete episode task for XR compatibility."},"format_version":1,"logical_path":"vla/meta/episodes.jsonl","provenance":"DataQA, velocity validation, source timestamps, annotator identity, and immutable object provenance remain in the internal DataRevision and are intentionally excluded from public episodes.jsonl.","schema_version":"digital_twin_xr_minimal_v1"}