cosmos3-skill-authoring SKILL.md skillA
cosmos3-skill-authoring from nvidia/cosmos-framework is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nvidia/cosmos-framework/cosmos3-skill-authoring@git:20261030.86e1ee5Pins git:20261030.86e1ee5 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-skill-authoring/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261030.86e1ee5, committed Oct 30, 2026
- Size
- 26,830 bytes
- Repository stars
- 613
- License
- a license file GitHub does not identify
Author new Cosmos3 agent skills and their eval configs, and get them through the skill eval. Use when adding a skill under .agents/skills/, migrating a cookbook notebook or README into a skill, writing or updating an eval.config, choosing eval cases and assertions, fixing a skill after a failed or self-corrected eval cell, reading an eval report on the dashboard, or preparing a skill PR. Covers the required structure, the writing rules that decide first-attempt pass/fail, the eval.config…
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 Skill Authoring How to write a skill for this repository and make it automatically evaluable. `.agents/skills/` is the source of truth for agent skills; keep the existing layout (one directory per skill) and do not restructure it. The bar: a skill passes its eval when every documented command works unchanged on the first attempt, for each of the four agent backends, on every runner class (see [`references/running-the-eval.md`](references/running-the-eval.md)). Self-corrections count against the skill. `../cosmos3-generate-media/SKILL.md` is the worked example behind every rule in this file. ## Skill directory structure ``` .agents/skills/<skill-name>/ ├── SKILL.md # required — the runnable path (read first by agents) ├── eval/ │ └── eval.config # required for CI evaluation — see below ├── assets/ # vendored sample data the eval cases consume ├── references/ # optional: sources migrated 1:1 (notebooks, READMEs) with marked skill notes └── scripts/ # optional: deterministic helpers SKILL.md links to (shebang, executable) ``` `eval/` is the home for everything evaluation-related (config today; fixtures, …
Read the whole file at its exact version.
How to install
mdr add nvidia/cosmos-framework/cosmos3-skill-authoring@sha256:bdd200d4cbf28c08The line at the top of this page pins the label git:20261030.86e1ee5, 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_xag3vtwptilvyxlm)
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Versions
The registry has recorded 1 version of this file, committed on Oct 30, 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 (26830 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
nvidia/cosmos-framework · 613 stars · license a license file GitHub does not identify · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_xag3vtwptilvyxlm GET https://markdownregistry.com/api/v1/resolve?ref=nvidia/cosmos-framework/cosmos3-skill-authoring GET https://markdownregistry.com/api/v1/blob/bdd200d4cbf28c082a8524ef4d4200a20f0cb2ff7a827fe5afceec4665436b81
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.