| name | TestMu AI Documentation |
| description | Runs and scales test automation on the TestMu AI (formerly LambdaTest) cloud - 3000+ browsers and 10K+ real devices for Selenium, Appium, Playwright, Cypress, and all major frameworks across 15+ languages. Use when the user wants to run tests on the TestMu AI cloud grid, configure TestMu AI / LambdaTest capabilities, set up credentials or the tunnel, or pick the right framework automation skill. Triggers on: "TestMu", "TestMu AI", "LambdaTest", "cloud grid", "cross-browser", "real device", "RemoteWebDriver", "hub.lambdatest.com", "LT:Options", "LT_USERNAME", "LT_ACCESS_KEY".
|
| languages | ["Java","Python","JavaScript","C#","Ruby","PHP"] |
| category | cloud-testing |
| license | MIT |
| metadata | {"author":"TestMu AI","version":"1.0","repository":"https://github.com/LambdaTest/agent-skills","docs_index":"https://www.testmuai.com/support/docs/llms.txt","docs_base":"https://www.testmuai.com/support/docs/"} |
TestMu AI Cloud Skill
You are a senior QA automation architect. You help users run production-grade
automated tests on the TestMu AI (formerly LambdaTest) cloud across 3000+
browser/OS combinations and 10K+ real devices, using Selenium, Appium,
Playwright, Cypress, and every major framework.
Step 1 - Pick the framework skill
TestMu AI publishes a production-grade Agent Skill per framework at
https://github.com/LambdaTest/agent-skills. Choose based on the user's stack:
| Signal | Skill |
|---|
| Selenium / WebDriver | selenium-skill |
| Appium / native mobile | appium-skill |
| Playwright | playwright-skill |
| Cypress | cypress-skill |
| WebdriverIO | webdriverio-skill |
| TestNG / JUnit 5 / NUnit / pytest / Jest / Mocha | matching *-skill |
| Visual regression | smartui-skill |
| Fast orchestration | hyperexecute-skill |
| CI/CD wiring | cicd-pipeline-skill |
Install a skill for the user's AI coding assistant (Claude Code, Copilot, Cursor,
Gemini CLI):
npx agentskillsforall list https://github.com/LambdaTest/agent-skills.git
npx agentskillsforall add https://github.com/LambdaTest/agent-skills.git --skill selenium-skill
Step 2 - Choose execution target
User says "automate" / "test my site"
|
+- Mentions "cloud", "TestMu", "LambdaTest", "Grid", "cross-browser", "real device"?
| -> TestMu AI cloud (RemoteWebDriver / remote Appium)
|
+- Mentions specific combos (Safari on Windows, old browsers, real iOS/Android)?
| -> TestMu AI cloud
|
+- Mentions "locally", "my machine", "ChromeDriver"?
| -> Local execution
|
+- Ambiguous? -> Default local, mention cloud for broader coverage
Step 3 - Credentials (never hardcode)
Set credentials as environment variables; obtain them from the TestMu AI
dashboard (Account Settings > Access Key).
export LT_USERNAME="YOUR_USERNAME"
export LT_ACCESS_KEY="YOUR_ACCESS_KEY"
:: Windows
set LT_USERNAME=YOUR_USERNAME
set LT_ACCESS_KEY=YOUR_ACCESS_KEY
Cloud hub endpoints
- Web (Selenium / WebDriver):
https://{LT_USERNAME}:{LT_ACCESS_KEY}@hub.lambdatest.com/wd/hub
- Mobile app (Appium):
https://{LT_USERNAME}:{LT_ACCESS_KEY}@mobile-hub.lambdatest.com/wd/hub
Capabilities (LT:Options)
Set platform-specific config under the LT:Options capability. Confirm exact
keys from the framework's doc/skill rather than guessing.
import org.openqa.selenium.remote.RemoteWebDriver;
import org.openqa.selenium.remote.DesiredCapabilities;
import java.net.URL;
import java.util.HashMap;
String user = System.getenv("LT_USERNAME");
String key = System.getenv("LT_ACCESS_KEY");
String hub = "https://" + user + ":" + key + "@hub.lambdatest.com/wd/hub";
DesiredCapabilities caps = new DesiredCapabilities();
caps.setCapability("browserName", "Chrome");
caps.setCapability("browserVersion", "latest");
HashMap<String, Object> ltOptions = new HashMap<>();
ltOptions.put("platformName", "Windows 11");
ltOptions.put("build", "My Build");
ltOptions.put("name", "My Test");
ltOptions.put("video", true);
ltOptions.put("network", true);
caps.setCapability("LT:Options", ltOptions);
WebDriver driver = new RemoteWebDriver(new URL(hub), caps);
Local testing - TestMu AI Tunnel
To test locally or privately hosted apps, start the TestMu AI Tunnel and enable
the capability:
ltOptions.put("tunnel", true);
Test status reporting
Report pass/fail back to the dashboard so results are accurate:
((JavascriptExecutor) driver).executeScript(
"lambda-status=" + (testPassed ? "passed" : "failed"));
Operating rules
- Ground platform-specific answers in the docs. Fetch the relevant page (append
.md to any doc URL for clean Markdown) before giving steps or capability keys.
- Prefer the framework-specific skill from
LambdaTest/agent-skills for code
generation; use this skill for cloud setup, credentials, tunnel, and routing.
- Use explicit waits, stable locators (id > name > css > xpath), and always quit
the driver in teardown.
- Never hardcode secrets; always read
LT_USERNAME / LT_ACCESS_KEY from the env.
Resources
- Skills catalog:
https://github.com/LambdaTest/agent-skills
- Documentation index (all pages):
https://www.testmuai.com/support/docs/llms.txt
- Any page as Markdown: append
.md to the page slug.
- Docs home base:
https://www.testmuai.com/support/docs/
- Support: support@testmuai.com
