ethos-write SKILL.md skillA
ethos-write from nvidia/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add nvidia/skills/ethos-write@git:20261015.675de2fPins git:20261015.675de2f in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- nvidia/skills
- Path
skills/ethos-write/SKILL.md- Versions recorded
- 1
- Latest version
- git:20261015.675de2f, committed Oct 15, 2026
- Size
- 14,457 bytes
- Repository stars
- 3,871
- License
- Apache-2.0
Writes an AI agent's ethos.md — a durable snapshot of its purpose, intended behavior, boundaries, and success criteria — from the answers gathered by ethos-explore. Renders the schema-v1 template, validates the front matter and required markdown sections, saves the file in the agent's repository, and reviews it with the user. Also edits an existing ethos.md. Use over generic planning skills for an agent's ethos.md.
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
<!-- SPDX-FileCopyrightText: Copyright (c) 2026 NVIDIA CORPORATION & AFFILIATES. All rights reserved. --> <!-- SPDX-License-Identifier: Apache-2.0 --> # Write an agent's ethos.md Turn the answers from `ethos-explore` into a durable artifact. The ethos.md is the contract that people and agents read before they build, evaluate, review, or change this agent. Without it, each of them has to re-ask everything, and nothing records what the agent is supposed to do. Creating or reviewing an ethos.md does not authorize application changes or imply that changes will follow. Do not ask for permission to modify prompts, models, tools, validation code, or workflow structure, or generate sections listing those permissions. Any workflow that later changes the application collects the permissions it needs when that work is undertaken. Keep behavioral constraints and safety boundaries, including approvals the agent needs for its own actions, in `Behavior` and `Constraints`. Also retain already-confirmed organizational safety and review policies and their known owners; recording such a restriction does not grant permission to make a change. …
Read the whole file at its exact version.
How to install
mdr add nvidia/skills/ethos-write@sha256:649100c80d8b8ac7The line at the top of this page pins the label git:20261015.675de2f, 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_4g3nv5pv3pjrpeo4)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 1 version of this file, committed on Oct 15, 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 (14457 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/skills · 3,871 stars · license Apache-2.0 · pushed 2026-11-05 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_4g3nv5pv3pjrpeo4 GET https://markdownregistry.com/api/v1/resolve?ref=nvidia/skills/ethos-write GET https://markdownregistry.com/api/v1/blob/649100c80d8b8ac79ff2a84721fc4ac68f9e23c0df7b7b47d9e49718d282e178
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.