newton SKILL.md skillA
newton 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/newton@git:20260923.d7dd301Pins git:20260923.d7dd301 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/tools/newton/SKILL.md- Versions recorded
- 1
- Latest version
- git:20260923.d7dd301, committed Sep 23, 2026
- Size
- 1,437 bytes
- Repository stars
- 106
- License
- Apache-2.0
Use when working on Newton physics engine workbench stages (teacher training, demo generation, evaluation), the Newton XPBD simulation pipeline, or the npa workbench newton CLI.
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
# Newton Newton is the physics engine tool for teacher policy training, demonstration generation, and policy evaluation in simulation. The three core stages (`train-teacher`, `generate-demos`, `eval`) are currently stubs: they expose the intended argument signatures but exit with a clear "not yet implemented" message until the Newton simulation pipeline lands (tracking issue nebius/nebius-physical-ai#499). Real physics validation (a double-pendulum XPBD simulation) runs on CPU via the installed Newton package — no GPU required for the validation path. ## Interfaces - CLI: `npa workbench newton <train-teacher|generate-demos|eval> --help` - Python SDK (workbench-first): `npa.workbench.newton` (`train_teacher`, `generate_demos`, `evaluate`) - Workflow module: `npa.workflows.byof.newton_pipeline` (argument validation, stub-manifest plumbing, argparse entrypoint) ## Conventions - The CLI lives at `npa.cli.workbench.newton` (multi-command package form for new tools); the SDK surface lives at `npa.workbench.newton` and does not go through `make_cli_wrapper`. - Stub stages write a `not_implemented` manifest to the requested …
Read the whole file at its exact version.
How to install
mdr add nebius/nebius-physical-ai/newton@sha256:3762c3c40de10734The line at the top of this page pins the label git:20260923.d7dd301, 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_2fckhneoqlsyepkb)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Sep 23, 2026.
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 (1437 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_2fckhneoqlsyepkb GET https://markdownregistry.com/api/v1/resolve?ref=nebius/nebius-physical-ai/newton GET https://markdownregistry.com/api/v1/blob/3762c3c40de1073434a12460b7ad55304a1c83c55e36e540a94467ad424fd13f
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.