train-policy SKILL.md skillA
train-policy from nebius/nebius-physical-ai is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nebius/nebius-physical-ai/train-policy@git:20261010.7768819Pins git:20261010.7768819 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nebius/nebius-physical-ai
- Path
skills/workflows/train-policy/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261010.7768819, committed Oct 10, 2026
- First version recorded
- Jul 3, 2026
- Size
- 2,954 bytes
- Repository stars
- 106
- License
- Apache-2.0
Use when planning, reviewing, or operating robot policy training across LeRobot, Isaac Lab, SONIC, and workflow YAMLs.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Train Policy ## When To Use Use this skill when a task asks how to train, fine-tune, evaluate, or export a robot policy through NPA workbench tools. It is the workflow-level entry point before choosing LeRobot, Isaac Lab, SONIC, or GR00T-specific skills. ## Procedure 1. Identify the policy family and data contract: LeRobotDataset for LeRobot, Isaac Lab task config for RL, retargeted motion artifacts for SONIC, or model-specific inputs for GR00T. 2. Select the GPU target with `skills/atomic/gpu-selection/SKILL.md`. 3. Configure input and output S3 prefixes. Checkpoints and evaluation artifacts must be run-scoped. 4. Choose the executable path: direct CLI for a single tool, SDK for application code, or SkyPilot YAML for composed training workflows. 5. Verify command help and YAML parsing locally before live GPU submission. ## Three-Tier Contract - CLI: `npa workbench lerobot train`, `npa workbench isaac-lab train`, `npa workbench sonic train`, and related `eval`, `export`, `serve`, or `infer` commands. - SDK: use the workbench SDK modules for application code and shared helper functions for request construction. …
Read the whole file at its exact version.
How to install
mdr add nebius/nebius-physical-ai/train-policy@sha256:fa9ddd54c70bb17cThe line at the top of this page pins the label git:20261010.7768819, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_c4twqiho63ikvorl)
4 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Jul 3, 2026 and Oct 10, 2026, about one every 20 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261010.7768819 latest | 2026-10-10 | 7768819 | 2,954 B | A | view · diff |
| git:20261010.bdc1150 | 2026-10-10 | bdc1150 | 2,342 B | A | view · diff |
| git:20260906.525ee24 | 2026-09-06 | 525ee24 | 2,345 B | A | view · diff |
| git:20260813.941e608 | 2026-08-13 | 941e608 | 2,337 B | A | view · diff |
| git:20260802.5fa1771 | 2026-08-02 | 5fa1771 | 2,155 B | A | view · diff |
| git:20260703.774344b | 2026-07-03 | 774344b | 2,046 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (2954 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
nebius/nebius-physical-ai · 106 stars · license Apache-2.0 · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_c4twqiho63ikvorl GET https://markdownregistry.com/api/v1/resolve?ref=nebius/nebius-physical-ai/train-policy GET https://markdownregistry.com/api/v1/blob/fa9ddd54c70bb17cdc9e376f3d976e8e565801a8b051671df7fc89c8e27da69e
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.