Agent skill · NVIDIA
i4h-workflow-dataset-replay
Replay a workflow HDF5 episode through its original Scene. Use for visual trajectory and recording verification; do not use for policy evaluation or LeRobot data.
What it needs
About 2k tokens when loaded.
What this skill does
Replay a Workflow Recording Purpose Replay the exact recorded action sequence through the matching workflow and inspect it visibly. Instructions 1. Run the checkout resolver and select the exact HDF5. 2. Read the original workflow and requested episode. 3. Inspect action-contract compatibility. 4. Run the replay visibly in the foreground through completion. Resolve the recording 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 an explicit or current-chain recording first. Otherwise select the newest plausible HDF5 and state that choice. Never substitute an older file after a failed recording. Interpret natural ordinals as zero-based indices: first is 0, second is 1. Inspect before launch Resolve the original workflow from recording metadata and conversation context. Confirm the requested episode exists and its action width matches the workflow's replay Scene contract. Replay Keep the visible simulator and command in the foreground. Poll yielded execution until run.sh exits; do not detach or return while replay is still running. Verify Observe the complete trajectory, relevant objects, camera views, segment boundaries, and final status. If motion diverges, report the first mismatching segment or action-contract error. Do not change workflow, episode, or recording silently. Troubleshooting On launch failure, verify workflow metadata, episode existence, and action width. On divergence, report the first mismatching segment. Prerequisites Require the original workflow assets and a readable episode whose action width matches replay mode. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills NVIDIA/i4h-workflow-dataset-replay