cosmos3-post-training SKILL.md skillA
cosmos3-post-training 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/cosmos3-post-training@git:20261102.416bcbaPins git:20261102.416bcba 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/cosmos3-post-training/SKILL.md- Versions recorded
- 9
- Latest version
- git:20261102.416bcba, committed Nov 2, 2026
- First version recorded
- Jul 3, 2026
- Size
- 11,382 bytes
- Repository stars
- 106
- License
- Apache-2.0
Use when planning, reviewing, or explaining Cosmos3 supervised fine-tuning and post-training in NPA, including upstream recipes, dataset/checkpoint preparation, and why NPA does not expose post-training as a fake skill command.
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
# Cosmos3 Post-Training ## Source And Attribution Adapted from NVIDIA cosmos-framework `skills/workflows/cosmos3-post-training/SKILL.md`. Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. Used under OpenMDW-1.1. See `skills/LICENSE-NVIDIA-COSMOS3-OPENMDW-1.1` and `skills/NOTICE-NVIDIA-COSMOS3`. ## When To Use Use this skill when the user asks how Cosmos3 SFT works, how to review future post-training support, where upstream recipes live, how to validate training configs, or whether an NPA change should expose post-training. For current NPA, treat Cosmos3 post-training as guidance and planning unless a real executable workflow is implemented and tested. Do not add a Cosmos skill-display subcommand or a SkyPilot YAML whose only purpose is to make this agent skill runnable. ## Current NPA Boundary The experimental `workflows/testing/cosmos3-policy-model-factory.yaml` now invokes native LIBERO-10 SFT through `npa workbench cosmos3 policy-train`, then the matching `policy-eval`, `policy-feedback`, and `failure-candidates` primitives. See `docs/workbench/cosmos3-policy-model-factory.md` and its linked …
Read the whole file at its exact version.
How to install
mdr add nebius/nebius-physical-ai/cosmos3-post-training@sha256:b5cd7e66985f9da9The line at the top of this page pins the label git:20261102.416bcba, 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_ch5olfe7piyzj5ip)
5 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 9 versions of this file, between Jul 3, 2026 and Nov 2, 2026, about one every 15 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261102.416bcba latest | 2026-11-02 | 416bcba | 11,382 B | A | view · diff |
| git:20261003.62e1877 | 2026-10-03 | 62e1877 | 10,217 B | A | view · diff |
| git:20261002.0c94af4 | 2026-10-02 | 0c94af4 | 9,299 B | A | view · diff |
| git:20260917.99b7bd7 | 2026-09-17 | 99b7bd7 | 4,842 B | A | view · diff |
| git:20260906.525ee24 | 2026-09-06 | 525ee24 | 3,759 B | A | view · diff |
| git:20260803.520ada9 | 2026-08-03 | 520ada9 | 3,799 B | A | view · diff |
| git:20260802.5fa1771 | 2026-08-02 | 5fa1771 | 3,802 B | A | view · diff |
| git:20260724.349c740 | 2026-07-24 | 349c740 | 3,799 B | A | view · diff |
| git:20260703.774344b | 2026-07-03 | 774344b | 3,803 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 (11382 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_ch5olfe7piyzj5ip GET https://markdownregistry.com/api/v1/resolve?ref=nebius/nebius-physical-ai/cosmos3-post-training GET https://markdownregistry.com/api/v1/blob/b5cd7e66985f9da9871fa4866c507d3e9110e2040e778746fe0ff66cfaad65f1
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.
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