npa-cli-conventions

npa-cli-conventions is a skill for Claude Code, Codex from nebius/nebius-physical-ai. It costs 50 tokens per session (1,486 once invoked), scanned A, original, Apache-2.0.

A set of rules for changing npa command-line tools and SDK functions, including where code belongs and how commands are registered.

In plain words
What is it for?
Use it when adding or modifying npa workbench commands, SDK functions, decorators, registrations, or their shared implementations.
Why use it?
It prevents new or modified tools from breaking expected option names, paths, output, errors, exit codes, configuration, or credential handling.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit Use it when adding or modifying npa workbench commands, SDK functions, decorators, registrations, or their shared implementations.

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Install with agentmods
npx agentmods add skills/nebius/nebius-physical-ai/npa-cli-conventions
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add nebius/nebius-physical-ai --skill npa-cli-conventions
Clone the repo
git clone --depth 1 https://github.com/nebius/nebius-physical-ai

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for npa-cli-conventions

README.md
[![agentmods](https://agentmods.dev/badge/skills/nebius/nebius-physical-ai/npa-cli-conventions/github.svg)](https://agentmods.dev/skills/nebius/nebius-physical-ai/npa-cli-conventions)
Your own site
<a href="https://agentmods.dev/skills/nebius/nebius-physical-ai/npa-cli-conventions"><img src="https://agentmods.dev/badge/skills/nebius/nebius-physical-ai/npa-cli-conventions/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for npa-cli-conventions

Your own site · 80×15
<a href="https://agentmods.dev/skills/nebius/nebius-physical-ai/npa-cli-conventions"><img src="https://agentmods.dev/badge/skills/nebius/nebius-physical-ai/npa-cli-conventions.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 50 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,486 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Privilege Escalation · line 114
    Code accesses credential files (SSH keys, AWS credentials, etc.). This could indicate credential theft attempts.
    Fix: Remove references to credential paths. Use environment variables or secrets managers. For docs, use placeholder paths (e.g., /path/to/config). Never load .env or token files in production code paths.
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00050 $0.01486
Opus 5 $0.00025 $0.00743
Sonnet 5 $0.00010 $0.00297
Haiku 4.5 $0.00005 $0.00149

Measured 10d ago against content hash 34143d93f1b9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

npa-cli-conventions scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/atomic/npa-cli-conventions/SKILL.md · 135 lines

How it starts

The opening of the file, as written. The whole thing — 135 lines — stays where its author put it; the contents beside it link to each section on GitHub.

npa CLI And SDK Conventions

Conventions for changing the npa package itself. For the full path of adding a new tool, use skills/workflows/add-workbench-tool/SKILL.md.

The codebase is mixed: some modules predate the current pattern. Where this skill and an existing module disagree, follow this skill and leave the old module alone unless you are deliberately migrating it.

Where Code Goes

Behavior belongs in npa/src/npa/workbench/<tool_snake>/. The CLI and SDK are clients of it, not second implementations. Three integration patterns exist:

  • Workbench module first — the SDK builds a Pydantic request and calls the shared implementation, or HTTP when service=True. This is the pattern for new work. See npa/src/npa/sdk/workbench/dataset.py.
  • CLI wrappermake_cli_wrapper in npa/src/npa/_sdk.py exposes an existing CLI callback as an SDK function. Used by older orchestration-heavy tools such as LeRobot. Do not choose it for new tools.
  • Direct module import — for platform code with no service, such as npa/src/npa/sdk/provisioning.py.

Registration

Register new command groups under npa workbench in npa/src/npa/cli/workbench/__init__.py. Do not add top-level groups: the platform utilities registered in npa/src/npa/cli/main.py predate the solution namespace model and are marked as legacy in that file.

Options

The cross-tool handoff flags are --input-path (reads an s3:// URI) and --output-path (writes one). Validate them with the shared contract in npa/src/npa/cli/path_contract.py. Public handoff paths must not require VM-local paths, file:// URIs, or plain HTTP URLs. A few legacy tools use --input-uri / --output-uri; keep them working with aliases rather than spreading the older spelling.

Conventional flags: -p/--project for the config alias, -n/--name for the workbench instance, --endpoint to override a saved endpoint, --service to call the deployed service instead of running in-process, and --token-env for the env var holding a bearer token. Not every tool has all of them; check the sibling module rather than assuming.

Read the full file on GitHub · 135 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 10d ago First seen · 135 lines · 50 tokens per session scan A 34143d93f1b9

Subscribe to this mod's changes

npa-cli-conventions is a skill published in the GitHub repository nebius/nebius-physical-ai (27 stars, last pushed today), licensed Apache-2.0. It adds 50 tokens to every session and 1,486 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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