Azure App Testing Agent Skill

Expert knowledge for Azure App Testing development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when using Azure Load Testing with VNets/private endpoints, JMeter/Locust, Playwright Workspaces, CI/CD, or quotas, and other Azure App Testing related development tasks. Not for Azure Test Plans (use azure-test-plans), Azure DevOps (use azure-devops), Azure Pipelines (use azure-pipelines), Azure App Service (use azure-app-service).

4k tokens

context cost

the whole folder, loaded on every use

files

instructions only

copies elsewhere

how many repositories repackaged it

681

stars on the repo

on the repository, not the skill itself

Install

one command, takes just this skill from the repository

npx skills add https://github.com/MicrosoftDocs/Agent-Skills --skill azure-app-testing

The instruction itself

12 sections, as written by the author

Azure App Testing Skill

This skill provides expert guidance for Azure App Testing. Covers troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. It combines local quick-reference content with remote documentation fetching capabilities.

How to Use This Skill

> IMPORTANT for Agent: Use the Category Index below to locate relevant sections. For categories with line ranges (e.g., L35-L120), use read_file with the specified lines. For categories with file links (e.g., security.md), use read_file on the linked reference file

> IMPORTANT for Agent: If metadata.generated_at is more than 3 months old, suggest the user pull the latest version from the repository. If mcp_microsoftdocs tools are not available, suggest the user install it: Installation Guide

This skill requires network access to fetch documentation content:

Preferred: Use mcp_microsoftdocs:microsoft_docs_fetch with query string from=learn-agent-skill. Returns Markdown.
Fallback: Use fetch_webpage with query string from=learn-agent-skill&accept=text/markdown. Returns Markdown.

Category Index

| Category | Lines | Description |

|----------|-------|-------------|

| Troubleshooting | L37-L47 | Diagnosing and fixing Azure Load Testing issues: failed or flaky tests, debug-mode runs, AI-based insights, browser recorder problems, private endpoint failures, and Playwright workspace/test run errors. |

| Best Practices | L48-L56 | Guidance on load testing App Service apps, tuning high-scale tests, finding performance bottlenecks, and optimizing Playwright Workspace tests for reliability and low latency. |

| Decision Making | L57-L64 | Guides for deciding load test resource moves (regions, groups, subscriptions) and tuning performance settings like Azure Functions configs and Playwright parallelism. |

| Architecture & Design Patterns | L65-L70 | Designing Azure Load Testing setups with virtual networks and private endpoints, including VNet-injected tests, network isolation, and testing services over private connectivity. |

| Limits & Quotas | L71-L78 | Configuring and understanding usage limits, quotas, and free trial constraints for Azure Load Testing and Playwright Workspaces, including monthly caps and workspace configuration options. |

| Security | L79-L91 | Securing Azure Load Testing and Playwright Workspaces: RBAC, auth for endpoints, managed identities, Key Vault, CMK encryption, certificates, access tokens, and Azure Policy controls. |

| Configuration | L92-L113 | Configuring and running Azure Load Testing and Playwright Workspaces: test definitions, HTTP/JMeter settings, secrets, monitoring, baselines, reporting/export, CI/CD YAML, scheduling, and multi-region load. |

| Integrations & Coding Patterns | L114-L124 | Authoring and running load tests with JMeter, Locust, and Playwright, using CSV data and plugins, integrating with VS Code/Copilot, and testing local or private apps via Azure Load Testing. |

| Deployment | L125-L129 | Setting up and automating CI/CD for Azure Load Testing, including manual pipeline configuration and integration with Azure Pipelines for automated test runs. |

Troubleshooting

| Topic | URL |

|-------|-----|

| Use AI-powered actionable insights to diagnose Azure load test issues | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-analyze-test-results-using-actionable-insights |

| Diagnose and troubleshoot failing Azure load tests | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-diagnose-failing-load-test |

| Run Azure load tests in debug mode for troubleshooting | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-run-tests-in-debug-mode |

| Diagnose Azure Load Testing browser recorder issues | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/troubleshoot-browser-extension |

| Troubleshoot private endpoint load tests in Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/troubleshoot-private-endpoint-tests |

| Troubleshoot Playwright Workspaces reporting errors | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/troubleshoot-playwright-workspaces-reporting |

| Troubleshoot Playwright Workspaces test run issues | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/troubleshoot-test-run-failures |

Best Practices

| Topic | URL |

|-------|-----|

| Load test Azure App Service apps with Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/concept-load-test-app-service |

| Configure high-scale load tests and engine instances in Azure | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-high-scale-load |

| Identify performance bottlenecks using Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/tutorial-identify-bottlenecks-azure-portal |

| Configure Playwright visual comparisons in Workspaces reliably | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/how-to-configure-visual-comparisons |

| Optimize regional latency for Playwright Workspaces tests | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/how-to-optimize-regional-latency |

Decision Making

| Topic | URL |

|-------|-----|

| Move Azure Load Testing resources between regions | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-move-between-regions |

| Move Azure Load Testing resources across resource groups or subscriptions | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-move-between-resource-groups-subscriptions |

| Choose optimal Azure Functions configuration with load tests | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-optimize-azure-functions |

| Determine optimal Playwright Workspaces parallelism configuration | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/concept-determine-optimal-configuration |

Architecture & Design Patterns

| Topic | URL |

|-------|-----|

| Choose virtual network deployment scenarios for Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/concept-azure-load-testing-vnet-injection |

| Test private endpoints with virtual network–injected Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-test-private-endpoint |

Limits & Quotas

| Topic | URL |

|-------|-----|

| Configure monthly usage limits for Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-manage-usage-limits |

| Service limits and quotas for Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/resource-limits-quotas-capacity |

| Understand Playwright Workspaces free trial limits | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/how-to-try-playwright-workspaces-free |

| Review limits and configuration for Playwright Workspaces | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/resource-limits-quotas-capacity |

Security

| Topic | URL |

|-------|-----|

| Manage Azure Load Testing access with RBAC roles | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-assign-roles |

| Configure customer-managed keys for Azure Load Testing encryption | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-configure-customer-managed-keys |

| Load test authenticated endpoints with Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-test-secured-endpoints |

| Use managed identities and Key Vault with Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-use-a-managed-identity |

| Secure Azure Load Testing resources with Azure Policy | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-use-azure-policy |

| Configure multiple certificates with JKS and Key Vault in Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-use-multiple-certificates |

| Manage Playwright Workspaces access tokens securely | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/how-to-manage-access-tokens |

| Configure authentication and authorization for Playwright Workspaces | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/how-to-manage-authentication |

| Configure RBAC-based access control for Playwright Workspaces | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/how-to-manage-workspace-access |

Configuration

| Topic | URL |

|-------|-----|

| Configure HTTP requests in URL-based Azure load tests | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-add-requests-to-url-based-test |

| Compare multiple Azure load test runs and baselines | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-compare-multiple-test-runs |

| Configure JMeter user properties in Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-configure-user-properties |

| Create and manage Azure load test definitions | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-create-manage-test |

| Create and manage Azure load test runs in the portal | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-create-manage-test-runs |

| Configure fail and auto-stop criteria for Azure load tests | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-define-test-criteria |

| Export Azure Load Testing results for external reporting | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-export-test-results |

| Generate multi-region load with Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-generate-load-from-multiple-regions |

| Monitor server-side Azure resource metrics during load tests | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-monitor-server-side-metrics |

| Use secrets and environment variables in Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-parameterize-load-tests |

| Schedule recurring Azure load tests | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-schedule-tests |

| Use Azure Load Testing results dashboard for analysis | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-understand-test-run-results-dashboard |

| Reference for Azure Load Testing monitoring data and resources | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/monitor-load-testing-reference |

| Configure Azure Load Testing with YAML in CI/CD | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/reference-test-config-yaml |

| JMeter properties overridden by Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/resource-jmeter-property-overrides |

| Select supported Azure resources for Load Testing monitoring | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/resource-supported-azure-resource-types |

| Use Playwright Workspaces service configuration file options | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/how-to-use-service-config-file |

| Configure Playwright Workspaces reporting for advanced diagnostics | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/quickstart-advanced-diagnostic-with-playwright-workspaces-reporting |

Integrations & Coding Patterns

| Topic | URL |

|-------|-----|

| Run JMeter-based load tests in Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-create-and-run-load-test-with-jmeter-script |

| Use CSV data in JMeter and Locust tests on Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-read-csv-data |

| Use JMeter plugins with Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-use-jmeter-plugins |

| Create Locust-based load tests in Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/quickstart-create-run-load-test-with-locust |

| Use VS Code extension and Copilot for Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/quickstart-create-run-load-tests-from-visual-studio-code |

| Use supported JMeter features in Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/resource-jmeter-support |

| Run Playwright Workspaces tests against local or private apps | https://learn.microsoft.com/en-us/azure/app-testing/playwright-workspaces/how-to-test-local-applications |

Deployment

| Topic | URL |

|-------|-----|

| Manually configure CI/CD pipelines for Azure Load Testing | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/how-to-configure-load-test-cicd |

| Automate Azure Load Testing in Azure Pipelines CI/CD | https://learn.microsoft.com/en-us/azure/app-testing/load-testing/quickstart-add-load-test-cicd |

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