Agent skill · NVIDIA
i4h-lerobot-viz
Serve and visually inspect a converted LeRobot dataset in the browser. Use for videos and state/action timelines; do not use for raw workflow HDF5 or incomplete conversion output.
What it needs
About 2k tokens when loaded.
What this skill does
Visualize a LeRobot Dataset Purpose Serve one completed local dataset and verify its episode videos and timelines in a browser. Instructions 1. Resolve the base checkout and one completed LeRobot dataset. 2. Launch its managed local server. 3. Open the printed URL. 4. Inspect videos, timelines, episode count, and cleanup state. Resolve the dataset Treat the resolver above as part of the skill contract: a hosted copy may run outside the base repository, so never assume the current checkout contains workflows/i4hworkflows. I4HWORKFLOWSREPOURL selects the clone source. When I4HWORKFLOWS is unset, derive the fallback directory from that URL; set I4HWORKFLOWS only to reuse or choose a specific destination. Never replace an existing checkout. Use the explicit/current-chain converted directory. Otherwise select the newest candidate and state the choice. Require <dataset>/meta/info.json; route raw HDF5 to i4h-workflow-dataset-convert. Serve Pass an absolute local path: The script selects a free local port, waits for HTTP readiness, and prints the URL, PID, state files, log, and exact stop command. Keep it running only while the user wants access. Verify visually Open the printed URL. Confirm: the requested episode list loads every expected camera video renders state and action timelines render with plausible dimensions and motion episode count and task text match meta/info.json no blank page, missing video, or wrong dataset is being served Reuse a live server only when its target dataset matches. Otherwise stop it using its printed state directory and port, then start the requested dataset. Troubleshooting If startup or the page fails, inspect meta/info.json, videos, the printed server log, and port ownership before restarting. Prerequisites Require the dataset tool environment and a completed LeRobot dataset with meta/info.json. Limitations The visualizer does not accept raw workflow HDF5 or repair incomplete metadata/videos. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills NVIDIA/i4h-lerobot-viz