cosmos3-codebase-nav SKILL.md skillA

cosmos3-codebase-nav 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-codebase-nav@git:20260728.dcb3761

Pins git:20260728.dcb3761 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-codebase-nav/SKILL.md
Versions recorded
4
Latest version
git:20260728.dcb3761, committed Jul 28, 2026
First version recorded
Jun 1, 2026
Size
11,259 bytes
Repository stars
589
License
a license file GitHub does not identify

Navigate the Cosmos3 package codebase to find where parameters, configs, defaults, scripts, and documentation live. Use when the user asks "where is X in cosmos3", "how do I find the config for Y", "where are the defaults", "where do I change a parameter", or any question about locating files, modules, or settings. Also use when the user opens or edits files and needs orientation.

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 Codebase Navigation

## When to use this skill

- Use this skill when an agent is navigating the Cosmos3 package
- Use this skill to answer "where is X", "how do I find the config for Y", or any file-location question
- Use this skill when the user opens or edits cosmos3 files and needs orientation

## Path convention

All paths below are relative to this file's location (`.agents/skills/cosmos3-codebase-nav/`). The repo is laid out as:

- `cosmos_framework/` — main training package (data, model, trainer, callbacks, checkpoint, utils, …).
- `cosmos_framework/configs/base/experiment/` — vfm (generator) experiment SKUs referenced by `[train.train_policy].experiment` in the recipe TOMLs.
- `cosmos_framework/configs/base/reasoner/experiment/` — vlm (reasoner) experiment SKUs.
- `cosmos_framework/inference/` — inference subpackage (args, model, inference engine, defaults, Ray serving, common helpers).
- `cosmos_framework/scripts/` — top-level entry-point scripts (train, inference, eval, export_model, convert_model_to_dcp, upsample_prompts, caption_from_video, captions_to_sft_jsonl, action_policy_server, …). Invoked as `python -m cosmos_framework.scripts.<name>`.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add nvidia/cosmos-framework/cosmos3-codebase-nav@sha256:c09ad544a399484e

The line at the top of this page pins the label git:20260728.dcb3761, 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_5oomnicxo7yivxlh.svg)](https://markdownregistry.com/a/art_5oomnicxo7yivxlh)

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

Versions

The registry has recorded 4 versions of this file, between Jun 1, 2026 and Jul 28, 2026, about one every 19 days.

versioncommittedcommitsizeaudit
git:20260728.dcb3761 latest2026-07-28 dcb3761 11,259 BA view · diff
git:20260702.df864d82026-07-02 df864d8 11,262 BA view · diff
git:20260702.90290a22026-07-02 90290a2 11,257 BA view · diff
git:20260601.1bd5fdc2026-06-01 1bd5fdc 11,391 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 (11259 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_5oomnicxo7yivxlh
GET https://markdownregistry.com/api/v1/resolve?ref=nvidia/cosmos-framework/cosmos3-codebase-nav
GET https://markdownregistry.com/api/v1/blob/c09ad544a399484e81878625183c2bac936d35a3c756b5543cf510697073c278

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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