How to Run Tests in the Nutlope Hallmark Project

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

The Nutlope/hallmark project is a design-skill package intended for Claude Code, Cursor, or Codex environments that detects UI anti-patterns through rule-based analysis. Because the codebase functions as a skill rather than a traditional library, it lacks conventional testing infrastructure, requiring alternative validation methods to confirm proper operation.

Why Traditional Testing Is Not Available

The repository structure explicitly excludes standard testing infrastructure. The source tree contains no *.test.js or *.spec.js files, lacks a tests/ directory, and the package.json does not define a test script. Consequently, attempting to run tests using npm test, yarn test, or npx jest will fail or return no results, as there is no test harness configured in the project metadata.

Verify Functionality Through Manual Installation

Since no automated test suite exists, validate the skill through installation and file verification:

1. Install the skill using the official command:

   npx skills add nutlope/hallmark

2. Confirm core files are present in your environment:

   • skills/hallmark/SKILL.md – Contains the rule-set that drives the skill's anti-pattern detection logic.
   • skills/hallmark/references/ – Directory holding design reference documents utilized during analysis.

Use the Audit Command for Functional Validation

The skill provides a built-in audit command that serves as the functional equivalent of a test suite by evaluating targets against Hallmark's documented anti-patterns:

hallmark audit <target-url-or-path>

For example, to validate the skill against a demo page:

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

This command executes the validation logic defined in skills/hallmark/SKILL.md, effectively testing the skill's behavior against real-world inputs.

Optional: Local Repository Verification

If you cloned the repository for development or inspection, verify the file structure locally, though npm install only prepares the environment for modification rather than testing:

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

Running npm test in this local copy will not execute any tests, as the package.json lacks the necessary script definition.

Summary

• The Nutlope/hallmark repository contains no automated test suite, spec files, or test scripts in package.json.
• Run tests functionality is replaced by the hallmark audit command, which validates the skill against target URLs or file paths.
• Verify proper installation by confirming the existence of skills/hallmark/SKILL.md and the skills/hallmark/references/ directory.
• Consult docs/recipes.md for additional usage patterns that demonstrate expected behavior.

Frequently Asked Questions

Why does the Hallmark repository have no test suite?

The Hallmark project is distributed as a design skill for AI coding environments rather than a traditional software library. According to the source code, the repository prioritizes rule-set documentation in skills/hallmark/SKILL.md over automated testing, relying instead on the hallmark audit command to validate behavior against live targets.

Can I add my own tests to the Hallmark project?

While you could manually create a tests/ directory and add a test script to package.json, the architecture is not designed for unit testing. The skill logic resides in markdown rule-sets within skills/hallmark/SKILL.md and operates within AI agent contexts, making traditional Jest or Mocha frameworks impractical for validating the rule-based anti-pattern detection.

How do I know if Hallmark is working correctly after installation?

Execute the audit command against a known URL or local file path. If hallmark audit <target> runs without errors and produces anti-pattern reports, the skill is functioning correctly. Additionally, verify that skills/hallmark/SKILL.md and the skills/hallmark/references/ directory exist in your installation environment, as these files contain the core logic and reference materials.

What should I check if the audit command fails?

First, confirm you installed the skill correctly using npx skills add nutlope/hallmark. Then verify that skills/hallmark/SKILL.md is present and readable, as this file contains the core validation rules. Check docs/recipes.md for correct command syntax and ensure your target URL or file path is accessible and properly formatted.

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