toolref-argv-contract SKILL.md skillA
toolref-argv-contract 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/toolref-argv-contract@git:20261001.0555584Pins git:20261001.0555584 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/atomic/toolref-argv-contract/SKILL.md- Versions recorded
- 3
- Latest version
- git:20261001.0555584, committed Oct 1, 2026
- First version recorded
- Aug 18, 2026
- Size
- 5,987 bytes
- Repository stars
- 106
- License
- Apache-2.0
Use when adding or changing an npa.workflow toolRef argv template, or when changing a CLI option that a toolRef already passes — the contract that stops a stage from rendering cleanly and then crashing in the pod.
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
# The toolRef Argv Contract
A `toolRef` is the only way an `npa.workflow` spec invokes a workbench tool. The
engine expands it from `TOOL_CATALOG` in
`npa/src/npa/orchestration/npa_workflow/catalog.py` into an argv list and runs
it inside the task pod.
Nothing in `validate-spec` or `plan-spec` compares that argv against the CLI
command it will be handed. A template can validate, plan, and render perfectly
and still die with `No such option` on real infrastructure after a GPU has been
provisioned. `npa/tests/guardrails/test_tool_catalog_argv.py` exists to close
that gap. Treat it as the real gate, not the spec validators.
Read this before writing an entry, and again whenever you rename or retype a CLI
option that any toolRef already passes.
## Shape
```python
"workbench.<tool_snake>.<verb>": ToolEntry(
name="workbench.<tool_snake>.<verb>",
description="...",
argv_template=[
"npa", "workbench", "<tool>", "<verb>",
"--input-path", "{{config.input_uri}}",
"--output-path", "{{config.output_uri}}",
],
),
```
The catalog key is snake_case; the argv inside it is the kebab-case CLI path.
…Read the whole file at its exact version.
How to install
mdr add nebius/nebius-physical-ai/toolref-argv-contract@sha256:0752c3d06e53fb9eThe line at the top of this page pins the label git:20261001.0555584, 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_q6xvf3eemgvilyur)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Aug 18, 2026 and Oct 1, 2026, about one every 22 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261001.0555584 latest | 2026-10-01 | 0555584 | 5,987 B | A | view · diff |
| git:20260906.525ee24 | 2026-09-06 | 525ee24 | 5,526 B | A | view · diff |
| git:20260818.62f2072 | 2026-08-18 | 62f2072 | 5,574 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 (5987 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_q6xvf3eemgvilyur GET https://markdownregistry.com/api/v1/resolve?ref=nebius/nebius-physical-ai/toolref-argv-contract GET https://markdownregistry.com/api/v1/blob/0752c3d06e53fb9e6f49a2940ba556a85366e4d07dd061bd6623e733af221b67
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.