test-api-performance

Measure API performance and concurrency under load with Playwright MCP.

36|10|Updated Feb 5, 2026
One-click install
npx skills add https://github.com/jie023/trae-setting --skill test-api-performance
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: test-api-performance
Source: https://github.com/jie023/trae-setting/tree/main/skills/test-api-performance
Command: npx skills add https://github.com/jie023/trae-setting --skill test-api-performance

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill automates the process of assessing API performance and concurrency under production-like load, enabling teams to identify bottlenecks before deployment.

Core Features & Use Cases

  • Performance benchmarking: measure key metrics such as response times, throughput, and resource utilization under varying load levels.
  • Concurrency testing: simulate multi-user scenarios to validate stability and data integrity under concurrent access.
  • Reporting: generate a concise Markdown report summarizing metrics, thresholds, and recommendations.
  • Use Case: Imagine you have an API that serves thousands of requests per minute; use this skill to run sustained load, capture P95/P99 latency, error rate, and resource usage, and compare against baseline.

Quick Start

Run a baseline API performance test against your endpoint using Playwright MCP and review the resulting Markdown report.

Frequently Asked Questions about test-api-performance

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

FAQPage Schema
How do I measure API performance under concurrent load?

You can measure API performance under concurrent load by running sustained stress tests that capture response time, throughput, error rate, and resource utilization metrics to identify bottlenecks before deployment.

What is API stress testing for performance regression?

API stress testing for performance regression involves applying high-load scenarios to an endpoint and comparing metrics like P95/P99 latency and error rate against a baseline to detect degradation.

Does Playwright MCP support multi-user concurrency testing?

Yes, you can use Playwright MCP to target end-to-end performance assessments and simulate multi-user concurrency scenarios to validate API stability and data integrity under concurrent access.

How do I generate a Markdown report for API benchmarking results?

To generate a Markdown report for API benchmarking, execute performance tests against your endpoint, and the system will output a concise summary of metrics, thresholds, and recommendations.

Can I use this skill to simulate production-like load on my API?

Yes, you can simulate production-like load on your API by running sustained high-load stress tests that capture resource utilization and throughput metrics to evaluate stability before deployment.

What metrics are included in an API performance test report?

An API performance test report includes key metrics such as response times, throughput, error rate, and resource utilization, measured under varying load levels to identify system bottlenecks.