azure-digital-twins

Development

Expert knowledge for Azure Digital Twins development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when modeling with DTDL, querying twin graphs, integrating IoT Hub/Functions, or migrating control plane APIs, and other Azure Digital Twins related development tasks. Not for Azure IoT Hub (use azure-iot-hub), Azure IoT Central (use azure-iot-central), Azure IoT Edge (use azure-iot-edge), Azure IoT Operations (use azure-iot-operations).

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How to use this skill

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Source SKILL.md: https://github.com/MicrosoftDocs/Agent-Skills/blob/HEAD/skills/azure-digital-twins/SKILL.md

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Azure Digital Twins Skill

This skill provides expert guidance for Azure Digital Twins. 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-L46	Diagnosing and fixing common Azure Digital Twins issues: 403/404 errors, Explorer auth problems, CLI parse failures, known bugs, and performance troubleshooting.
Best Practices	L47-L53	Guidance on modeling best practices: converting RDF/OWL ontologies to DTDL, extending DTDL for Azure Digital Twins, and designing effective tagging patterns for twin graphs.
Decision Making	L54-L59	Guidance on selecting DTDL-based industry ontologies for your twin models and instructions for migrating from Azure Digital Twins preview control plane APIs to current APIs.
Architecture & Design Patterns	L60-L65	Patterns for routing data into/out of Azure Digital Twins, plus strategies for high availability, redundancy, and disaster recovery planning and configuration.
Limits & Quotas	L66-L71	Details on Azure Digital Twins query unit usage, plus service limits, throttling behavior, and how to view/request changes to adjustable quotas.
Security	L72-L80	Security guidance for Azure Digital Twins: auth with Entra app registrations, client authentication, Private Link setup, and handling customer personal data and best practices.
Configuration	L81-L105	Configuring and operating Azure Digital Twins: instance setup, security, endpoints/routes, data history, monitoring, graph/twin/model management, Explorer/3D tools, and query language usage.
Integrations & Coding Patterns	L106-L122	APIs, SDKs, CLI, and query usage; integrating IoT Hub, Azure Data Explorer, Functions, Power Platform; coding .NET clients and validating DTDL models for Azure Digital Twins.
Deployment	L123-L126	Guidance for moving an Azure Digital Twins instance to a different region, including prerequisites, supported scenarios, and step-by-step migration procedures.

Troubleshooting

Topic	URL
Fix Azure Digital Twins 403 Forbidden errors	https://learn.microsoft.com/en-us/azure/digital-twins/troubleshoot-error-403-digital-twins
Fix Azure Digital Twins 404 sub-domain not found errors	https://learn.microsoft.com/en-us/azure/digital-twins/troubleshoot-error-404-digital-twins
Resolve Azure Digital Twins Explorer authentication errors	https://learn.microsoft.com/en-us/azure/digital-twins/troubleshoot-error-azure-digital-twins-explorer-authentication
Resolve Azure Digital Twins CLI parse failed errors	https://learn.microsoft.com/en-us/azure/digital-twins/troubleshoot-error-cli-parse
Resolve known issues in Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/troubleshoot-known-issues
Troubleshoot Azure Digital Twins performance issues	https://learn.microsoft.com/en-us/azure/digital-twins/troubleshoot-performance

Best Practices

Topic	URL
Convert RDF/OWL ontologies to DTDL models	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-ontologies-convert
Extend DTDL ontologies for Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-ontologies-extend
Implement tagging patterns for Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-use-tags

Decision Making

Topic	URL
Choose DTDL-based industry ontologies for Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-ontologies-adopt
Migrate from Azure Digital Twins preview control plane APIs	https://learn.microsoft.com/en-us/azure/digital-twins/resources-migrate-from-preview-apis

Architecture & Design Patterns

Topic	URL
Design data ingress and egress for Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-data-ingress-egress
Plan high availability and disaster recovery for Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-high-availability-disaster-recovery

Limits & Quotas

Topic	URL
Understand Query Unit consumption in Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-query-units
Azure Digital Twins service limits and adjustable quotas	https://learn.microsoft.com/en-us/azure/digital-twins/reference-service-limits

Security

Topic	URL
Apply security best practices to Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-security
Implement client authentication for Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-authenticate-client
Create Entra app registration for Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-create-app-registration
Enable Private Link for Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-enable-private-link
Handle customer personal data in Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/resources-customer-data-requests

Configuration

Topic	URL
Interpret Azure Digital Twins event notifications	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-event-notifications
Configure endpoints and event routes in Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-route-events
Set up Azure Digital Twins data history connection	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-create-data-history-connection
Configure Azure Digital Twins event endpoints	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-create-endpoints
Configure event routes and filters in Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-create-routes
Manage Azure Digital Twins graphs and relationships	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-manage-graph
Manage DTDL models in Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-manage-model
Manage individual digital twins via APIs/SDKs	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-manage-twin
Configure monitoring, metrics, and logs for Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-monitor
Provision and secure Digital Twins via CLI	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-set-up-instance-cli
Set up an Azure Digital Twins instance in portal	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-set-up-instance-portal
Use 3D Scenes Studio features with Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-use-3d-scenes-studio
Operate Azure Digital Twins Explorer features	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-use-azure-digital-twins-explorer
Use FROM clause in Azure Digital Twins query language	https://learn.microsoft.com/en-us/azure/digital-twins/reference-query-clause-from
Use JOIN clause in Azure Digital Twins graph queries	https://learn.microsoft.com/en-us/azure/digital-twins/reference-query-clause-join
Use MATCH clause for graph traversal in Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/reference-query-clause-match
Use SELECT clause in Azure Digital Twins query language	https://learn.microsoft.com/en-us/azure/digital-twins/reference-query-clause-select
Use WHERE clause in Azure Digital Twins queries	https://learn.microsoft.com/en-us/azure/digital-twins/reference-query-clause-where
Use functions in Azure Digital Twins query language	https://learn.microsoft.com/en-us/azure/digital-twins/reference-query-functions
Use operators in Azure Digital Twins query language	https://learn.microsoft.com/en-us/azure/digital-twins/reference-query-operators
Reserved keywords in Azure Digital Twins query language	https://learn.microsoft.com/en-us/azure/digital-twins/reference-query-reserved

Integrations & Coding Patterns

Topic	URL
Work with Azure Digital Twins APIs and SDKs	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-apis-sdks
Use Azure Digital Twins CLI command set	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-cli
Query Digital Twins via Azure Data Explorer plugin	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-data-explorer-plugin
Configure data history with Azure Data Explorer	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-data-history
Use Azure Digital Twins query language	https://learn.microsoft.com/en-us/azure/digital-twins/concepts-query-language
Ingest IoT Hub telemetry into Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-ingest-iot-hub-data
Parse and validate DTDL models with .NET	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-parse-models
Query Azure Digital Twins graphs with examples	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-query-graph
Set up twin-to-twin event propagation with Azure Functions	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-send-twin-to-twin-events
Call Azure Digital Twins REST APIs using .http files	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-use-apis
Use Power Platform connector with Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-use-power-platform-logic-apps-connector
Code a .NET client for Azure Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/tutorial-code
Use Azure CLI commands with Digital Twins	https://learn.microsoft.com/en-us/azure/digital-twins/tutorial-command-line-cli

Deployment

Topic	URL
Move an Azure Digital Twins instance across regions	https://learn.microsoft.com/en-us/azure/digital-twins/how-to-move-regions