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name: dataset-preparation description: "Validate nuScenes + CAN-bus layout and the generated BEVFormer temporal annotation files." disable-model-invocation: true metadata: disco-role: operating license: Apache 2.0

Dataset Preparation

Use this sub-skill when a task depends on the nuScenes raw tree, CAN-bus expansion, or the temporal annotation files consumed by BEVFormer and BEVFormerV2.

Covers

• nuScenes folder layout checks for the raw samples/, sweeps/, maps/, and version folders.
• CAN-bus expansion placement and the pose metadata it feeds.
• Generated nuscenes_infos_temporal_train.pkl, nuscenes_infos_temporal_val.pkl, and nuscenes_infos_temporal_test.pkl.
• data_root / ann_file wiring for camera-only BEVFormer configs.
• Metadata keys emitted by CustomNuScenesDataset and CustomNuScenesDatasetV2.

Routes elsewhere

• Model, backbone, transformer, or other config knobs belong in installation-and-configs.
• Distributed training, evaluation, checkpoints, or FP16 launch commands belong in training-and-evaluation.
• Log analysis, benchmark, or visualization tasks belong in analysis-and-utilities.

Start here

1. Read nuScenes layout notes.
2. Read data format notes.
3. Read troubleshooting notes.
4. Run the bundled layout checker.