Skill

azure-app-testing

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, CI/CD pipelines, or Playwright Workspaces, and other Azure App Testing related development tasks. Not for Azure Test Plans (use azure-test-plans), Playwright Workspaces (use azure-playwright-workspaces), Azure DevOps (use azure-devops), Azure App Service (use azure-app-service).

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This skill uses the workspace's default tool permissions.

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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.

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Harness Load Testing

Detects load test infrastructure (k6, Artillery, Gatling, JMeter), designs scenarios for critical endpoints, executes stress tests, and analyzes results against thresholds. For pre-release validation and scaling.

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Last CommitApr 3, 2026

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Azure App Testing Skill

How to Use This Skill

IMPORTANT for Agent: This file may be large. Use the Category Index below to locate relevant sections, then use read_file with specific line ranges (e.g., L136-L144) to read the sections needed for the user's question This skill requires network access to fetch documentation content. Use mcp_microsoftdocs:microsoft_docs_fetch to retrieve full articles.

Fallback: Use the built-in WebFetch tool if the Microsoft Learn MCP server is not available.

Category Index

Category	Lines	Description
Troubleshooting	L31-L39	Diagnosing and fixing Azure Load Testing issues (failures, debug runs, private endpoints) and troubleshooting Playwright Workspaces errors and test run problems.
Best Practices	L41-L48	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	L50-L56	Guides for deciding load test resource moves (regions, groups, subscriptions) and tuning performance settings like Azure Functions configs and Playwright parallelism.
Architecture & Design Patterns	L58-L62	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	L64-L70	Usage caps, service limits, quotas, and configuration details for Azure Load Testing and Playwright Workspaces, including free trial constraints and how to set monthly usage limits.
Security	L72-L83	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	L85-L105	Configuring and running Azure Load Testing: test definitions/runs, HTTP/JMeter/Playwright settings, baselines, auto-stop, scheduling, multi-region, monitoring, exports, and CI/CD YAML.
Integrations & Coding Patterns	L107-L116	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	L118-L122	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
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
Service limits, quotas, 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