vnx-orchestration: Skill for Claude Code

.claude/skills/test-engineer/SKILL.md

test-engineer is a skill for Claude Code from Vinix24/vnx-orchestration. It costs 19 tokens per session (516 once invoked), scanned B, original, MIT.

A testing guide for planning and writing unit, integration, and end-to-end tests. It explains test-driven development, or writing tests before the code, along with coverage, naming, isolation, speed, and reliability practices.

In plain words
What is it for?
Use it to design test plans, write automated tests, cover authentication or payment flows, check critical user journeys, and improve test quality.
Why use it?
It helps find missing happy paths, edge cases, and error handling before they reach users. A risk-based approach focuses testing effort on important behavior.

Skill for Claude Code

Written for Claude Code: allowed-tools in frontmatter. Also seen: names the TodoWrite tool.

This is Vinix24/vnx-orchestration's own configuration. It tells Claude Code how to work on vnx-orchestration itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything vnx-orchestration configures →

Reuse

Borrowing it

Nothing to install: this file belongs to Vinix24/vnx-orchestration. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/Vinix24/vnx-orchestration/main/.claude/skills/test-engineer/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/Vinix24/vnx-orchestration

Made for: Claude Code.

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 test-engineer

README.md
[![agentmods](https://agentmods.dev/badge/skills/vinix24/vnx-orchestration/test-engineer.svg)](https://agentmods.dev/skills/vinix24/vnx-orchestration/test-engineer)
Your own site
<a href="https://agentmods.dev/skills/vinix24/vnx-orchestration/test-engineer"><img src="https://agentmods.dev/badge/skills/vinix24/vnx-orchestration/test-engineer.svg" alt="Measured on agentmods" height="20"></a>
Per session 19 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 516 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 1 finding. 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 System Prompt Leakage · line 59
    Skill contains instructions that could directly expose system prompts, internal rules, or hidden instructions to users or external parties.
    Fix: Remove any instructions that reveal, print, or output system prompts or internal rules. System instructions should never be exposed to end users.
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 $0.00019 $0.00516
Opus 5 $0.00010 $0.00258
Sonnet 5 $0.00004 $0.00103
Haiku 4.5 $0.00002 $0.00052

Measured 8d ago against content hash 2d66278f05ef, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade B, and why

test-engineer scanned grade B with 1 finding 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 8d 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.

Asks the agent to reveal its instructionsmediumSystem prompt leakage

Directions to print, repeat or translate the system prompt extract configuration the operator did not intend to expose.

## Output Instructions
.claude/skills/test-engineer/SKILL.md · 78 lines

How it starts

The opening of the file, as written. The whole thing — 78 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Test Engineer

Ensure quality through unit, integration, and E2E test coverage with risk-based test planning.

Core Responsibilities

  • Analyze requirements for testability
  • Write tests before implementation (TDD)
  • Cover happy path and edge cases
  • Test error conditions explicitly
  • Verify performance requirements
  • Document test scenarios

Testing Philosophy

  • Prevention over Detection: Build quality in, not test it in
  • Risk-Based: Focus on critical paths and high-impact areas
  • Automated First: Manual testing only for exploratory needs
  • Fast Feedback: Tests run quickly, fail clearly

Test Pyramid

  1. Unit Tests (70%): Fast, isolated, numerous
  2. Integration Tests (20%): Component interactions
  3. E2E Tests (10%): Critical user journeys

Examples

  • "Create test suite for authentication"
  • "Write integration tests for payment flow"
  • "Build E2E tests for checkout process"

Guidelines

Test Quality Standards

  • Coverage: >80% for unit, >70% for integration
  • Naming: describe_what_when_expected pattern
  • Isolation: No test dependencies
  • Speed: Unit <100ms, integration <1s
  • Deterministic: No flaky tests

Testing Patterns

  • Arrange-Act-Assert: Clear test structure
  • Given-When-Then: BDD scenarios
  • Test Data Builders: Flexible test fixtures
  • Mocking: Isolate dependencies
  • Snapshot Testing: UI regression detection

Quality Requirements

  • Tests included in same PR
  • All tests must pass in CI
  • Performance benchmarks included
  • Test documentation updated
  • No commented-out tests

Output Instructions

For report generation, see: @.claude/skills/test-engineer/template.md

Intelligence Queries

For accessing proven patterns and solutions, see: @.claude/skills/test-engineer/scripts/intelligence.sh


Skill Activation Announcement

MANDATORY — first line of every response after skill load:

Skill actief: test-engineer

No exceptions. This must appear before any other content.

Read the full file on GitHub · 78 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. 8d ago First seen · 78 lines · 19 tokens per session scan B 2d66278f05ef

Subscribe to this mod's changes

test-engineer is a skill published in the GitHub repository Vinix24/vnx-orchestration (61 stars, last pushed today), licensed MIT. It adds 19 tokens to every session and 516 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it B with 1 finding (asks the agent to reveal its instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.