How to Run Tests in the Nutlope/hallmark Repository: Manual Validation Guide

The Nutlope/hallmark repository does not ship with an automated test suite, so you cannot execute npm test or yarn test; instead, you must verify functionality using the built-in hallmark audit command and manual file validation.

The Hallmark repository is a design-skill package created by Nutlope that helps identify and fix UI anti-patterns in AI coding environments. Because it functions as a skill for Claude Code, Cursor, or Codex rather than a traditional library, the repository contains no unit tests, integration tests, or a test script in its package.json. If you need to confirm that the code operates correctly, you must rely on manual verification steps and the skill's own validation logic.

Why There Is No npm test Command

Unlike conventional Node.js projects, the Hallmark repository contains no test files such as *.test.js, *.spec.js, or a tests/ directory. Additionally, the package.json file does not define a test script. According to the source code structure, this is intentional because Hallmark is designed to be consumed as a skill via npx skills add rather than as a dependency with a traditional test harness.

Manual Verification Methods

Since automated tests are absent, use the following three-step process to validate the installation and functionality.

Install the Skill

The primary method for obtaining Hallmark is through the Skills CLI. Run the installation command described in the README.md:

npx skills add nutlope/hallmark

This pulls the skill into Claude Code, Cursor, Codex, or compatible environments.

Verify Core Files

After installation, confirm that the essential skill files are present in your environment:

• skills/hallmark/SKILL.md — Contains the rule-set that drives the skill's behavior.
• skills/hallmark/references/ — Directory holding design reference documents used for pattern matching.

Run the Built-in Audit Command

The skill provides a functional validation mechanism through its audit command. This evaluates a target page against Hallmark's anti-patterns and serves as the closest equivalent to a smoke test:

hallmark audit <target-url-or-path>

For example, to test against the Hallmark demo site:

hallmark audit https://www.usehallmark.com/examples/hum-07/

Complete Validation Workflow

If you clone the repository to inspect or modify the source, follow this workflow to ensure everything functions correctly:

# 1. Clone the repository

git clone https://github.com/Nutlope/hallmark.git
cd hallmark

# 2. Install dependencies (only required for local modifications)

npm install

# 3. Execute the skill's audit command to validate functionality

npx hallmark audit https://www.usehallmark.com/examples/hum-07/

Key Files and Their Roles

Understanding the repository structure helps you verify that all components are present:

• skills/hallmark/SKILL.md — The core rule-set defining the skill's logic and anti-pattern detection rules.
• skills/hallmark/references/ — Collection of design reference documents that the skill uses to evaluate UI implementations.
• docs/recipes.md — Contains example usage recipes demonstrating how to invoke the skill in various scenarios.
• README.md — Provides installation instructions and links to the live demo.

Summary

• The Nutlope/hallmark repository contains no automated test suite, *.test.js files, or test script in package.json.
• Install the skill using npx skills add nutlope/hallmark for Claude Code, Cursor, or Codex environments.
• Validate manually by checking for skills/hallmark/SKILL.md and the references/ directory.
• Run the audit command (hallmark audit <url>) as the built-in functional test to verify the skill operates correctly.

Frequently Asked Questions

Does Hallmark have unit tests?

No, the repository does not include unit tests. The project is a design-skill package intended for AI coding assistants, and the source tree contains no *.test.js, *.spec.js, or tests/ directory. Validation relies on the hallmark audit command and manual file verification.

What is the hallmark audit command?

The hallmark audit command is a built-in CLI function that evaluates a target URL or local file path against Hallmark's design anti-patterns. It acts as a functional smoke test, executing the skill's validation logic to ensure the rule-set in SKILL.md processes input correctly.

Where are the test files in the repository?

There are no test files in the Nutlope/hallmark repository. The project structure excludes conventional testing directories, and the package.json does not contain a test script, reflecting its architecture as an installable skill rather than a test-driven library.

How do I know if Hallmark is installed correctly?

Verify installation by confirming the presence of skills/hallmark/SKILL.md and the skills/hallmark/references/ directory in your environment. Then run hallmark audit against a known URL; if it executes without errors and returns design feedback, the skill is functioning properly.

{
  "mcpServers": {
    "instagit": {
      "command": "npx",
      "args": ["-y", "instagit@latest"]
    }
  }
}