Load Test Builder

What it does

This skill automatically generates load test scripts using k6, a popular open-source load testing tool. It streamlines performance testing workflows by allowing users to define scenarios, set thresholds, configure load patterns (ramp-up, peak duration), run tests, analyze results for bottlenecks and integrate these tests into CI/CD pipelines. The generated scripts include checks for response times and error rates.

When to use it

• Validate system performance under realistic user loads.
• Identify potential bottlenecks before releasing new features or updates.
• Automate performance testing as part of a continuous integration (CI) pipeline.
• Simulate stress conditions to determine the breaking point of an application.
• Ensure that performance requirements are met and consistently maintained.

Key capabilities

• Generates k6 load test scripts automatically.
• Supports defining user scenarios and load patterns.
• Allows setting performance thresholds for response times and error rates.
• Configurable load profiles (ramp-up, peak, duration).
• Integrates with CI/CD pipelines for automated testing.
• Includes checks for HTTP status codes and response body content.

Example prompts

While this skill doesn't directly respond to natural language prompts, it generates scripts based on configuration parameters defined within the k6 script itself (e.g., defining stages, thresholds). A user would configure these parameters rather than providing a direct prompt.

Tips & gotchas

• Requires k6 to be installed either via brew install k6 or using Docker (docker pull grafana/k6).
• The skill generates scripts; users need to understand and modify the generated k6 code for complex scenarios.
• Environment variables (e.g., BASE_URL) can be used to configure test parameters within the generated script.