What is testing-conventions?

A set of repository rules for running and interpreting NPA tests, lint checks, and validation reports. It specifies the correct Python environment and test commands.

Use it before running tests or validation, when diagnosing failures, and when regenerating documentation after changing command-line options.

It avoids misleading results from using the wrong interpreter, skipping required checks, or confusing a fast parallel test run with the full CI gate.

testing-conventions — Skill for Claude Code and Codex by nebius

Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo

git clone --depth 1 https://github.com/nebius/nebius-physical-ai

agentmods

npx agentmods add skills/nebius/nebius-physical-ai/testing-conventions

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/nebius/nebius-physical-ai/testing-conventions.svg)](https://agentmods.dev/skills/nebius/nebius-physical-ai/testing-conventions)

Your own site

<a href="https://agentmods.dev/skills/nebius/nebius-physical-ai/testing-conventions"><img src="https://agentmods.dev/badge/skills/nebius/nebius-physical-ai/testing-conventions.svg" alt="Measured on agentmods" height="20"></a>

Per session 20 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,974 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 pass 7 Sept 2026

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.

Model	Per session	Once invoked
Fable 5.1	$0.00020	$0.01974
Opus 5	$0.00010	$0.00987
Sonnet 5	$0.00004	$0.00395
Haiku 4.5	$0.00002	$0.00197

Measured today against content hash 00cc8500badb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

testing-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 today.

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/testing-conventions/SKILL.md · 144 lines

How it starts

The opening of the file, as written. The whole thing — 144 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Testing Conventions

Use the repository virtualenv. Never use bare python; use npa/.venv/bin/python.

Correct command from repo root:

npa/.venv/bin/python -m pytest npa/tests/ --ignore=npa/tests/e2e --timeout=120 -q

Correct command from inside npa/:

cd npa
.venv/bin/python -m pytest tests/ --ignore=tests/e2e --timeout=120 -q

Run it in parallel. The suite is xdist-safe (pytest-xdist is in the dev extra); -n auto takes ~6 min down to ~2 min on 8 cores with an identical pass count, which is the difference between running the whole suite each iteration and only running a slice:

.venv/bin/python -m pytest tests/ -q -n auto

Use the serial form when a failure needs a readable, ordered traceback. CI still runs serially with coverage, so treat a parallel pass as the fast signal, not as a replacement for the gate.

Docs drift is a required gate and is slow to re-run blind. scripts/build_docs.sh memoizes and prefetches its npa --help walk (~1 min, was ~5), but it still costs a minute — so change CLI options first, then regenerate once, rather than checking after each edit. Per-subcommand options do not change the generated pages; a new top-level command adds docs/cli/<name>.md plus a README index line.

ruff is available in the venv:

npa/.venv/bin/python -m ruff check <files>

Existing Failures And Gates

Known pre-existing failure: tests/smoke/test_cosmos_serverless_smoke.py has 5 tests gated by NPA_COSMOS_SERVERLESS_SMOKE=1; they fail with Unable to list Nebius VPC networks for project project-smoke: unsupported.
E2E tests are gated by NPA_INTEGRATION_E2E=1 and excluded from standard runs with --ignore=npa/tests/e2e.
Pipeline E2E tests use the e2e_pipeline pytest marker.
Live Nebius Token Factory tests use the token_factory_e2e marker (in npa/tests/e2e/test_token_factory_e2e.py). They self-skip without a real NEBIUS_TOKEN_FACTORY_KEY; the marker is in conftest _LIVE_MARKERS so the key is not scrubbed. Run with NEBIUS_TOKEN_FACTORY_KEY=... pytest npa/tests/e2e/test_token_factory_e2e.py.

Read the full file on GitHub · 144 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.

today Changed · +8 lines 00cc8500badb
8d ago First seen · 136 lines · 20 tokens per session scan A b39296cd5660

Subscribe to this mod's changes

testing-conventions is a skill published in the GitHub repository nebius/nebius-physical-ai (27 stars, last pushed today), licensed Apache-2.0. It adds 20 tokens to every session and 1,974 once invoked, about $0.0001 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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testing-conventions