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azure-signalr-service

Expert knowledge for Azure SignalR Service development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when configuring SignalR modes, upstream endpoints, Entra auth, multi-region topologies, or Event Grid/API Management integrations, and other Azure SignalR Service related development tasks. Not for Azure Web PubSub (use azure-web-pubsub), Azure Service Bus (use azure-service-bus), Azure Event Hubs (use azure-event-hubs).

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SKILL.md

name: azure-signalr-servicedescription: Expert knowledge for Azure SignalR Service development including troubleshooting, best practices, decision making, architecture & design patterns, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when configuring SignalR modes, upstream endpoints, Entra auth, multi-region topologies, or Event Grid/API Management integrations, and other Azure SignalR Service related development tasks. Not for Azure Web PubSub (use azure-web-pubsub), Azure Service Bus (use azure-service-bus), Azure Event Hubs (use azure-event-hubs).compatibility: Requires network access. Uses mcp_microsoftdocs:microsoft_docs_fetch or fetch_webpage to retrieve documentation.metadata:   generated_at: "2026-11-01"  generator: "docs2skills/1.0.0"

Azure SignalR Service Skill

This skill provides expert guidance for Azure SignalR Service. 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:

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

Category Index

Category	Lines	Description
Troubleshooting	L37-L45	Diagnosing and fixing SignalR issues using Azure Monitor logs and live trace, including connectivity, message delivery, and common Azure SignalR Service errors.
Best Practices	L46-L51	Guidance on safely shutting down SignalR app servers and managing client lifecycle events, including detecting, handling, and recovering from client disconnects and reconnects.
Decision Making	L52-L56	Guidance on choosing the right SignalR Service mode (Default/Serverless/Classic) and configuring availability zones/zone redundancy for high availability and resilience.
Architecture & Design Patterns	L57-L63	Patterns for scaling and sharding SignalR, designing resilient multi-region topologies, and architecting high-availability, high-throughput ASP.NET Core SignalR apps with Azure SignalR.
Limits & Quotas	L64-L70	Message/connection billing rules, capacity planning, throughput limits, and how to scale Azure SignalR instances within quota and performance constraints.
Security	L71-L92	Securing Azure SignalR: auth with Entra ID/managed identities, keys and rotation, network/private endpoints/NSGs, WAF, Key Vault access, RBAC, cross-tenant, and Azure Policy compliance.
Configuration	L93-L104	Configuring SignalR apps: connection strings, upstream endpoints, custom domains, monitoring/metrics, negotiation endpoints, Functions bindings, and using the local emulator.
Integrations & Coding Patterns	L105-L120	Patterns and APIs for integrating SignalR with servers and gateways: SDK usage, client management, REST data-plane versions, and wiring events through Event Grid, API Management, and Application Gateway.
Deployment	L121-L131	Deploying and managing Azure SignalR via CLI, ARM/Bicep templates, autoscale setup, regional moves, and end-to-end web app deployment (incl. GitHub auth)

Troubleshooting

Topic	URL
Use Azure Monitor resource logs to troubleshoot SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-diagnostic-logs
Troubleshoot common Azure SignalR Service issues	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-troubleshoot-guide
Use the Azure SignalR live trace tool for diagnostics	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-troubleshoot-live-trace
Troubleshoot SignalR connectivity and message delivery	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-troubleshoot-method
Troubleshoot common Azure SignalR Service issues	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-resource-faq

Best Practices

Topic	URL
Gracefully shut down Azure SignalR app servers	https://learn.microsoft.com/en-us/azure/azure-signalr/server-graceful-shutdown
Handle client disconnections and reconnections in Azure SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-client-disconnections

Decision Making

Topic	URL
Choose the right Azure SignalR Service mode	https://learn.microsoft.com/en-us/azure/azure-signalr/concept-service-mode

Architecture & Design Patterns

Topic	URL
Design resilient multi-region Azure SignalR topologies	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-disaster-recovery
Scale ASP.NET Core SignalR apps using Azure SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-scale-aspnet-core
Scale Azure SignalR with multiple instances and sharding	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-scale-multi-instances

Limits & Quotas

Topic	URL
Understand message and connection counting for SignalR billing	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-messages-and-connections
Plan Azure SignalR performance and capacity	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-performance
Scale Azure SignalR instances and understand scaling constraints	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-scale-signalr

Security

Topic	URL
Disable access key auth and enforce Entra ID for SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/howto-disable-local-auth
Configure network access control for Azure SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/howto-network-access-control
Secure Azure SignalR with private endpoints	https://learn.microsoft.com/en-us/azure/azure-signalr/howto-private-endpoints
Use Azure SignalR service tags in NSGs	https://learn.microsoft.com/en-us/azure/azure-signalr/howto-service-tags
Secure SignalR outbound traffic via shared private endpoints	https://learn.microsoft.com/en-us/azure/azure-signalr/howto-shared-private-endpoints
Access Key Vault privately from Azure SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/howto-shared-private-endpoints-key-vault
Use managed identities with Azure SignalR Service	https://learn.microsoft.com/en-us/azure/azure-signalr/howto-use-managed-identity
Built-in Azure Policy definitions for Azure SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/policy-reference
Apply Azure Policy regulatory compliance controls to SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/security-controls-policy
Implement custom authentication for Azure SignalR clients	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-authenticate-oauth
Authorize Azure SignalR access with Microsoft Entra ID RBAC	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-authorize-azure-active-directory
Authorize Azure SignalR with Microsoft Entra applications	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-authorize-application
Configure cross-tenant authorization for Azure SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-authorize-cross-tenant
Authorize Azure SignalR with managed identities	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-authorize-managed-identity
Enforce Azure SignalR compliance with Azure Policy	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-azure-policy
Configure Azure SignalR Application Firewall rules	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-configure-application-firewall
Rotate Azure SignalR access keys securely	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-key-rotation
Authenticate Azure SignalR clients with Azure Functions bindings	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-tutorial-authenticate-azure-functions

Configuration

Topic	URL
Configure Azure SignalR Service connection strings in apps	https://learn.microsoft.com/en-us/azure/azure-signalr/concept-connection-string
Configure upstream endpoints and protocols in Azure SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/concept-upstream
Configure custom domains for Azure SignalR Service	https://learn.microsoft.com/en-us/azure/azure-signalr/howto-custom-domain
Configure monitoring for Azure SignalR with Azure Monitor	https://learn.microsoft.com/en-us/azure/azure-signalr/monitor-signalr
Reference for Azure SignalR monitoring metrics and logs	https://learn.microsoft.com/en-us/azure/azure-signalr/monitor-signalr-reference
Customize client negotiation endpoints in Azure SignalR	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-client-negotiation
Develop and configure Azure Functions apps with SignalR bindings	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-serverless-development-config
Use Azure SignalR Local Emulator for serverless development	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-emulator

Integrations & Coding Patterns

Topic	URL
Integrate Azure SignalR Service events with Event Grid	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-concept-event-grid-integration
Integrate Azure SignalR events with Event Grid	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-event-grid-integration
Use Azure SignalR Service SDK from your app server	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-use
Manage Azure SignalR clients using the Management SDK	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-use-management-sdk
Use Azure SignalR with API Management	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-work-with-apim
Use Azure SignalR with Application Gateway	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-work-with-app-gateway
Use Azure SignalR REST API for server-to-client messaging	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-quickstart-rest-api
Use Azure SignalR data-plane REST APIs	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-reference-data-plane-rest-api
Integrate with Azure SignalR REST API v1	https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v1
Integrate with Azure SignalR REST API v1-preview	https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v1-preview
Integrate with Azure SignalR REST API v20220601	https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v20220601
Integrate with Azure SignalR REST API v20241201	https://learn.microsoft.com/en-us/azure/azure-signalr/swagger/signalr-data-plane-rest-v20241201

Deployment

Topic	URL
Create an Azure SignalR Service via Azure CLI script	https://learn.microsoft.com/en-us/azure/azure-signalr/scripts/signalr-cli-create-service
Provision SignalR Service with App Service using Azure CLI	https://learn.microsoft.com/en-us/azure/azure-signalr/scripts/signalr-cli-create-with-app-service
Deploy SignalR web app with GitHub authentication via CLI	https://learn.microsoft.com/en-us/azure/azure-signalr/scripts/signalr-cli-create-with-app-service-github-oauth
Move Azure SignalR resources across regions with ARM templates	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-move-across-regions
Configure autoscale for Azure SignalR Premium tier	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-howto-scale-autoscale
Deploy Azure SignalR Service using ARM templates	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-quickstart-azure-signalr-service-arm-template
Deploy Azure SignalR Service using Bicep templates	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-quickstart-azure-signalr-service-bicep
Azure CLI script samples for deploying SignalR Service	https://learn.microsoft.com/en-us/azure/azure-signalr/signalr-reference-cli