Azure Data Explorer Skill

This skill provides expert guidance for Azure Data Explorer. 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](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-L49	Diagnosing and fixing ADX cluster health, creation, connection, private endpoint, ingestion, and DB/table operation errors, including interpreting ingestion error codes and using Resource Health.
Best Practices	L50-L61	Guidance on optimizing ADX clusters and schemas, handling duplicates and JSON ingestion, tuning for high concurrency, monitoring queued ingestion, using hot windows, and applying Power BI best practices.
Decision Making	L62-L76	Guidance on ADX capacity planning, SKU and compute choices, scaling, cost optimization, reservations, business continuity, confidential compute, streaming ingestion, and Elasticsearch migration.
Architecture & Design Patterns	L77-L83	Designing ADX architectures for DR/BCP, cross-cluster access via follower DBs, and multitenant patterns (isolation, scaling, and resource sharing).
Limits & Quotas	L84-L93	Cluster limits and behaviors: free cluster quotas, auto-stop, safe delete/recover, ingestion file size and invalid data handling, and supported data/compression formats.
Security	L94-L121	Securing Azure Data Explorer: authn/z (RBAC, principals, Entra apps, Conditional Access), encryption, managed identities, network isolation, policies, data purging, and outbound/public access control.
Configuration	L122-L136	Configuring ADX environments: database/table policies, retention/cache, cross-tenant Event Hubs, Kusto emulator, plugins, monitoring, schema sync, T-SQL, and web UI settings/shortcuts.
Integrations & Coding Patterns	L137-L171	Integrating Azure Data Explorer with tools and platforms (SQL, ODBC/JDBC, Power Automate/Apps, Functions, Grafana, Splunk, OpenTelemetry, etc.) and coding patterns for querying, ingestion, and automation.
Deployment	L172-L178	Automating ADX cluster provisioning and schema deployment, plus guidance for migrating clusters to availability zones and from VNet injection to private endpoints.

Troubleshooting

Topic	URL
Monitor and troubleshoot Azure Data Explorer cluster health	https://learn.microsoft.com/en-us/azure/data-explorer/check-cluster-health
Diagnose and fix Azure Data Explorer dashboard tile errors	https://learn.microsoft.com/en-us/azure/data-explorer/dashboard-troubleshoot-tile-errors
Interpret ADX ingestion error codes and failures	https://learn.microsoft.com/en-us/azure/data-explorer/error-codes
Resolve common Azure Data Explorer ingestion issues	https://learn.microsoft.com/en-us/azure/data-explorer/ingestion-faq
Use Resource Health to diagnose ADX issues	https://learn.microsoft.com/en-us/azure/data-explorer/monitor-with-resource-health
Troubleshoot Azure Data Explorer private endpoint issues	https://learn.microsoft.com/en-us/azure/data-explorer/security-network-private-endpoint-troubleshoot
Fix Azure Data Explorer cluster connection issues	https://learn.microsoft.com/en-us/azure/data-explorer/troubleshoot-connect-cluster
Troubleshoot Azure Data Explorer cluster creation failures	https://learn.microsoft.com/en-us/azure/data-explorer/troubleshoot-create-cluster
Resolve Azure Data Explorer DB and table operation failures	https://learn.microsoft.com/en-us/azure/data-explorer/troubleshoot-database-table

Best Practices

Topic	URL
Apply Azure Advisor recommendations to optimize Data Explorer clusters	https://learn.microsoft.com/en-us/azure/data-explorer/azure-advisor
Handle duplicate data in Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/dealing-with-duplicates
Optimize Azure Data Explorer clusters for high-concurrency workloads	https://learn.microsoft.com/en-us/azure/data-explorer/high-concurrency
Use hot windows to efficiently query cold data in Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/hot-windows
Ingest JSON into Azure Data Explorer with KQL, C#, and Python	https://learn.microsoft.com/en-us/azure/data-explorer/ingest-json-formats
Monitor queued ingestion metrics in ADX	https://learn.microsoft.com/en-us/azure/data-explorer/monitor-queued-ingestion
Apply Power BI best practices for Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/power-bi-best-practices
Optimize Azure Data Explorer table schema design	https://learn.microsoft.com/en-us/azure/data-explorer/schema-best-practice

Decision Making

Topic	URL
Choose Azure Data Explorer business continuity options	https://learn.microsoft.com/en-us/azure/data-explorer/business-continuity-overview
Deploy Azure Data Explorer with confidential compute	https://learn.microsoft.com/en-us/azure/data-explorer/confidential-compute
Decide when to use streaming ingestion in Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/ingest-data-streaming
Select isolated compute SKUs for Data Explorer clusters	https://learn.microsoft.com/en-us/azure/data-explorer/isolated-compute
Choose optimal Azure Data Explorer compute SKU	https://learn.microsoft.com/en-us/azure/data-explorer/manage-cluster-choose-sku
Plan vertical scaling and SKU changes for clusters	https://learn.microsoft.com/en-us/azure/data-explorer/manage-cluster-vertical-scaling
Migrate Elasticsearch workloads to Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/migrate-elasticsearch-to-azure-data-explorer
Use ADX pricing calculator for cluster planning	https://learn.microsoft.com/en-us/azure/data-explorer/pricing-calculator
Optimize ADX cost per GB ingested	https://learn.microsoft.com/en-us/azure/data-explorer/pricing-cost-drivers
Understand ADX reservation discount application	https://learn.microsoft.com/en-us/azure/data-explorer/pricing-reservation-discount
Choose and purchase Azure Data Explorer reserved capacity	https://learn.microsoft.com/en-us/azure/data-explorer/pricing-reserved-capacity

Architecture & Design Patterns

Topic	URL
Design Azure Data Explorer business continuity and DR	https://learn.microsoft.com/en-us/azure/data-explorer/business-continuity-create-solution
Use follower databases for cross-cluster ADX access	https://learn.microsoft.com/en-us/azure/data-explorer/follower
Choose multitenant architectures for Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/multi-tenant

Limits & Quotas

Topic	URL
Understand automatic stop behavior for inactive clusters	https://learn.microsoft.com/en-us/azure/data-explorer/auto-stop-clusters
Apply Event Grid ingestion file size limits in Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/create-event-grid-connection
Delete and recover Azure Data Explorer clusters safely	https://learn.microsoft.com/en-us/azure/data-explorer/delete-cluster
Understand invalid data behavior during ADX ingestion	https://learn.microsoft.com/en-us/azure/data-explorer/ingest-invalid-data
Supported data and compression formats for Azure Data Explorer ingestion	https://learn.microsoft.com/en-us/azure/data-explorer/ingestion-supported-formats
Upgrade free Azure Data Explorer clusters and remove limits	https://learn.microsoft.com/en-us/azure/data-explorer/start-for-free-upgrade

Security

Topic	URL
Programmatically add Azure Data Explorer cluster principals	https://learn.microsoft.com/en-us/azure/data-explorer/add-cluster-principal
Programmatically add Azure Data Explorer database principals	https://learn.microsoft.com/en-us/azure/data-explorer/add-database-principal
Enable disk encryption for Azure Data Explorer clusters	https://learn.microsoft.com/en-us/azure/data-explorer/cluster-encryption-disk
Configure encryption options for Azure Data Explorer clusters	https://learn.microsoft.com/en-us/azure/data-explorer/cluster-encryption-overview
Configure managed identities on Azure Data Explorer clusters	https://learn.microsoft.com/en-us/azure/data-explorer/configure-managed-identities-cluster
Configure cross-tenant access for Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/cross-tenant-query-and-commands
Configure customer-managed keys for Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/customer-managed-keys
Purge personal data from Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/data-purge-portal
Authenticate Azure Data Explorer external tables with managed identities	https://learn.microsoft.com/en-us/azure/data-explorer/external-tables-managed-identities
Ingest data using managed identity authentication	https://learn.microsoft.com/en-us/azure/data-explorer/ingest-data-managed-identity
Configure and manage Azure Data Explorer cluster locks	https://learn.microsoft.com/en-us/azure/data-explorer/manage-cluster-locks
Configure Azure Data Explorer cluster RBAC permissions	https://learn.microsoft.com/en-us/azure/data-explorer/manage-cluster-permissions
Configure database RBAC permissions in Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/manage-database-permissions
Use managed identities with Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/managed-identities-overview
Apply built-in Azure Policy definitions to ADX	https://learn.microsoft.com/en-us/azure/data-explorer/policy-reference
Securely connect private-endpoint clusters to Power BI	https://learn.microsoft.com/en-us/azure/data-explorer/power-bi-private-endpoint
Create and authorize Microsoft Entra apps for Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/provision-entra-id-app
Configure Conditional Access for Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/security-conditional-access
Apply Azure Policy compliance controls to Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/security-controls-policy
Configure managed private endpoints for Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/security-network-managed-private-endpoint-create
Plan network security for Azure Data Explorer clusters	https://learn.microsoft.com/en-us/azure/data-explorer/security-network-overview
Secure Azure Data Explorer with private endpoints	https://learn.microsoft.com/en-us/azure/data-explorer/security-network-private-endpoint
Restrict outbound access from Azure Data Explorer clusters	https://learn.microsoft.com/en-us/azure/data-explorer/security-network-restrict-outbound-access
Control public network access to Data Explorer clusters	https://learn.microsoft.com/en-us/azure/data-explorer/security-network-restrict-public-access

Configuration

Topic	URL
Use KQL database scripts in ARM deployments	https://learn.microsoft.com/en-us/azure/data-explorer/database-script
Programmatically create Azure Data Explorer database and table policies	https://learn.microsoft.com/en-us/azure/data-explorer/database-table-policies
Create cross-tenant Event Hubs data connections for Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/ingest-data-cross-tenant
Install and configure Azure Data Explorer Kusto emulator	https://learn.microsoft.com/en-us/azure/data-explorer/kusto-emulator-install
Manage language extension plugins in Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/language-extensions
Configure Azure Data Explorer monitoring reference settings	https://learn.microsoft.com/en-us/azure/data-explorer/monitor-data-explorer-reference
Synchronize ADX schema with Sync Kusto tool	https://learn.microsoft.com/en-us/azure/data-explorer/sync-kusto
Use T-SQL queries against Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/t-sql
Configure Azure Data Explorer table retention and cache	https://learn.microsoft.com/en-us/azure/data-explorer/table-retention-policy-wizard
Customize Azure Data Explorer web UI environment settings	https://learn.microsoft.com/en-us/azure/data-explorer/web-customize-settings
Use Azure Data Explorer web UI query keyboard shortcuts	https://learn.microsoft.com/en-us/azure/data-explorer/web-ui-query-keyboard-shortcuts

Integrations & Coding Patterns

Topic	URL
Manage ADX with Azure PowerShell Kusto cmdlets	https://learn.microsoft.com/en-us/azure/data-explorer/azure-powershell
Clone Azure Data Explorer database schema via commands	https://learn.microsoft.com/en-us/azure/data-explorer/clone-database-schema
Connect common SQL tools to Azure Data Explorer via emulation	https://learn.microsoft.com/en-us/azure/data-explorer/connect-common-apps
Configure JDBC connectivity to Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/connect-jdbc
Set up ODBC connections to Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/connect-odbc
Query Azure Storage external tables from Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/external-azure-storage-tables-query
Use ADX connector in Power Automate flows	https://learn.microsoft.com/en-us/azure/data-explorer/flow
Automate ADX queries with Power Automate examples	https://learn.microsoft.com/en-us/azure/data-explorer/flow-usage
Configure Grafana integration with Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/grafana
Configure Event Grid ingestion from storage to Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/ingest-data-event-grid-overview
Ingest Splunk Enterprise data into Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/ingest-data-splunk
Ingest data from Splunk Universal Forwarder into Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/ingest-data-splunk-uf
Configure Telegraf Azure Data Explorer output plugin	https://learn.microsoft.com/en-us/azure/data-explorer/ingest-data-telegraf
Use ADX input/output bindings in Azure Functions	https://learn.microsoft.com/en-us/azure/data-explorer/integrate-azure-functions
Integrate MCP servers with Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/integrate-mcp-servers
Connect Azure Data Explorer to Kibana via K2Bridge	https://learn.microsoft.com/en-us/azure/data-explorer/k2bridge
Query ADX from Jupyter using Kqlmagic	https://learn.microsoft.com/en-us/azure/data-explorer/kqlmagic
Query ADX as a linked server from SQL Server	https://learn.microsoft.com/en-us/azure/data-explorer/linked-server
Run ADX queries via Logic Apps connector	https://learn.microsoft.com/en-us/azure/data-explorer/logic-apps
Configure OpenTelemetry collector to ingest into Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/open-telemetry-connector
Build Power Apps that query Azure Data Explorer via connector	https://learn.microsoft.com/en-us/azure/data-explorer/power-apps-connector
Integrate Azure Data Explorer with Microsoft Purview	https://learn.microsoft.com/en-us/azure/data-explorer/purview
Query Azure Data Explorer using the Python data client library	https://learn.microsoft.com/en-us/azure/data-explorer/python-query-data
Query Azure Data Explorer from MATLAB using authorization tokens	https://learn.microsoft.com/en-us/azure/data-explorer/query-matlab
Use Redash native connector with Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/redash
Use Serilog sink to stream logs into Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/serilog-sink
Set up Sisense integration with Azure Data Explorer	https://learn.microsoft.com/en-us/azure/data-explorer/sisense
Run KQL queries and stored functions over TDS from SQL clients	https://learn.microsoft.com/en-us/azure/data-explorer/sql-kql-queries-and-stored-functions
Connect to Azure Data Explorer using SQL Server emulation (TDS endpoint)	https://learn.microsoft.com/en-us/azure/data-explorer/sql-server-emulation-overview
Connect Azure Data Explorer to Tableau via ODBC	https://learn.microsoft.com/en-us/azure/data-explorer/tableau
Debug KQL inline Python plugin code using Visual Studio Code	https://learn.microsoft.com/en-us/kusto/debug-inline-python?view=microsoft-fabric

Deployment

Topic	URL
Automate provisioning of Azure Data Explorer environments	https://learn.microsoft.com/en-us/azure/data-explorer/automated-deploy-overview
Use Azure DevOps pipelines for Azure Data Explorer schema deployment	https://learn.microsoft.com/en-us/azure/data-explorer/devops
Migrate Azure Data Explorer clusters to multiple availability zones	https://learn.microsoft.com/en-us/azure/data-explorer/migrate-cluster-to-multiple-availability-zone
Migrate Azure Data Explorer VNet injection to private endpoints	https://learn.microsoft.com/en-us/azure/data-explorer/security-network-migrate-vnet-to-private-endpoint