helper-extraction

Detect reusable test helper patterns and generate shared utility modules.

Updated Aug 23, 2026
One-click install
npx skills add https://github.com/ai-sand-castles/local-marketplace --skill helper-extraction
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: helper-extraction
Source: https://github.com/ai-sand-castles/local-marketplace/tree/main/test-automation-plugin/skills/helper-extraction
Command: npx skills add https://github.com/ai-sand-castles/local-marketplace --skill helper-extraction

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Automatically detects repeated test helper patterns in generated tests and refactors them into shared utilities to reduce duplication and maintenance burden.

Core Features & Use Cases

  • Detects mock creation, test data builders, and setup/teardown patterns across language ecosystems.
  • Generates language-specific helper modules and integrates them into existing test suites.
  • Reads and preserves existing helpers, supports multiple languages, and seamlessly plugs into the write-agent workflow.

Quick Start

Run helper-extraction on your generated tests to automatically detect patterns and generate shared utilities, then inject the corresponding imports.

Frequently Asked Questions about helper-extraction

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I reduce duplicate test helpers and setup patterns in my test suites?

To reduce duplicate test helpers, automatically detect repeated mock creation, test data builders, and setup/teardown patterns, then refactor them into shared utility modules. This preserves existing helpers while minimizing maintenance burden across generated tests.

Can I extract reusable test utilities across multiple programming languages?

Yes, you can extract reusable test utilities across multiple languages including Python, JavaScript/TypeScript, Java, C#, Go, C++, and Rust. It generates language-specific helper modules and injects the corresponding imports directly into existing test suites.

What is the best way to refactor generated test code into shared modules?

The best way to refactor generated test code is to run an automated extraction process that identifies repeated helper patterns, creates shared utilities, and integrates them by wiring imports through a write-agent workflow that handles errors gracefully.

Does the test helper extraction process preserve my existing utility modules?

Yes, the test helper extraction process reads and preserves existing utility modules. It detects new repeated patterns in generated tests and integrates the newly created shared utilities alongside current helpers without overwriting them.

How does the write-agent workflow handle imports when generating shared test utilities?

The write-agent workflow handles imports by automatically injecting them into test suites when shared test utilities are generated. It wires the generated helpers into the codebase and manages any import errors gracefully during the refactoring process.

When should I automate mock creation and test data builder extraction?

You should automate mock creation and test data builder extraction when generated tests contain high duplication across multiple suites, creating a maintenance burden. Extracting these into shared utilities standardizes setup/teardown patterns and reduces repetitive code.