cosmos3-nano-sim-auto-post-training SKILL.md skillA

cosmos3-nano-sim-auto-post-training from nvidia/cosmos-framework is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add nvidia/cosmos-framework/cosmos3-nano-sim-auto-post-training@git:20261021.a2a7409

Pins git:20261021.a2a7409 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
nvidia/cosmos-framework
Path
.agents/skills/cosmos3-nano-sim-auto/post-training/SKILL.md
Versions recorded
2
Latest version
git:20261021.a2a7409, committed Oct 21, 2026
First version recorded
Oct 21, 2026
Size
12,545 bytes
Repository stars
589
License
a license file GitHub does not identify

Distill Cosmos3-Nano-Transfer-Auto into Cosmos3-Nano-Sim-Auto using customer RGB, WSM, captions and LiDAR in Cosmos Framework. Covers TF, TF-dCM, SF-DMD, checkpoint handoffs, resume and student export.

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

# Post-train Cosmos3-Nano-Sim-Auto

Start from **Transfer-Auto**, including a Transfer-Auto model adapted to your
camera rig or domain. Do not start this workflow from plain Cosmos3-Nano or
directly fine-tune the released distilled Sim-Auto student with an SFT objective.
See the [model and checkpoint contract](../shared/model-contract.md).

## Choose your starting point

| Goal                      | Start with                                                   | Follow                                                                   |
| ------------------------- | ------------------------------------------------------------ | ------------------------------------------------------------------------ |
| Generate now              | Released Sim-Auto student; no training needed                | [Inference](../inference/SKILL.md)                                       |
| Train your simulator      | Compatible Transfer-Auto checkpoint, not plain Cosmos3-Nano  | [Stage 1 Quickstart](#quickstart-train-stage-1)                          |
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add nvidia/cosmos-framework/cosmos3-nano-sim-auto-post-training@sha256:4893bdeba2219dd0

The line at the top of this page pins the label git:20261021.a2a7409, 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.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_jcqzrge76ngwjil3.svg)](https://markdownregistry.com/a/art_jcqzrge76ngwjil3)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 2 versions of this file, all committed on Oct 21, 2026.

versioncommittedcommitsizeaudit
git:20261021.a2a7409 latest2026-10-21 a2a7409 12,545 BA view · diff
git:20261021.7e918d72026-10-21 7e918d7 12,551 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12545 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

GitHub

nvidia/cosmos-framework · 589 stars · license a license file GitHub does not identify · pushed 2026-10-31 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_jcqzrge76ngwjil3
GET https://markdownregistry.com/api/v1/resolve?ref=nvidia/cosmos-framework/cosmos3-nano-sim-auto-post-training
GET https://markdownregistry.com/api/v1/blob/4893bdeba2219dd0c2c85b4248e1593f0a3f44f90c35632ee92056bc6cc7d42c

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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