/azure-durable-task

name: azure-durable-task
description: Expert knowledge for Azure Durable Task development including best practices, decision making, architecture & design patterns, limits & quotas, configuration, integrations & coding patterns, and deployment. Use when choosing Durable storage backends, versioning orchestrations, using fan-out/fan-in, human approvals, or instance APIs, and other Azure Durable Task related development tasks. Not for Azure Functions (use azure-functions), Azure Logic Apps (use azure-logic-apps), Azure App Service (use azure-app-service), Azure Service Fabric (use azure-service-fabric).
compatibility: Requires network access. Uses mcp_microsoftdocs:microsoft_docs_fetch or fetch_webpage to retrieve documentation.
metadata:
  generated_at: "2026-09-13"
  generator: "docs2skills/1.0.0"

Azure Durable Task Skill

This skill provides expert guidance for Azure Durable Task. Covers best practices, decision making, architecture & design patterns, limits & quotas, 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](https://github.com/MicrosoftDocs/mcp/blob/main/README.md)

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 | |----------|-------|-------------| | Best Practices | L35-L43 | Patterns and constraints for writing robust orchestrator code, including retries and error handling, eternal/continue-as-new flows, external event handling, and singleton orchestration patterns. | | Decision Making | L44-L49 | Guidance on when to use Durable Functions vs raw Durable Task SDK, and how to compare and choose durable storage providers/backends for orchestrations. | | Architecture & Design Patterns | L50-L57 | Patterns for orchestrating Durable workflows: fan-out/fan-in, human approval steps, long-running monitors, and function chaining design and implementation. | | Limits & Quotas | L58-L63 | Configuring orchestration status size/retention limits, querying status, and monitoring Durable Task Scheduler action metrics, performance, and billing impacts. | | Configuration | L64-L68 | Configuring Durable Task hubs storage (connection, scaling, reliability) and using instance management APIs to query, control, and manage orchestration instances. | | Integrations & Coding Patterns | L69-L73 | Managing Durable Task workflow instances: starting, querying, terminating, purging, and using instance management APIs for lifecycle control and monitoring | | Deployment | L74-L77 | Guidance on safely deploying Durable orchestrations using versioning strategies, handling breaking changes, and managing upgrades without disrupting running workflows. |

Best Practices

| Topic | URL | |-------|-----| | Follow orchestrator code constraints in Durable Functions | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-code-constraints | | Implement error handling and retries in Durable Functions | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-error-handling | | Implement eternal orchestrations with continue-as-new | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-eternal-orchestrations | | Handle external events in Durable orchestrations | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-external-events | | Implement singleton orchestrators in Durable Functions | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-singletons |

Decision Making

| Topic | URL | |-------|-----| | Choose Durable Functions vs Durable Task SDK hosting | https://learn.microsoft.com/en-us/azure/durable-task/common/choose-orchestration-framework | | Compare Durable Task storage providers and choose backends | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-storage-providers |

Architecture & Design Patterns

| Topic | URL | |-------|-----| | Implement fan-out/fan-in pattern in Durable Functions | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-fan-in-fan-out | | Design human interaction workflows in Durable Task | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-human-interaction | | Build monitor pattern workflows with Durable orchestrations | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-monitor | | Use function chaining pattern in Durable workflows | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-sequence |

Limits & Quotas

| Topic | URL | |-------|-----| | Configure and query custom orchestration status limits | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-custom-orchestration-status | | Monitor Durable Task Scheduler action metrics and billing | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-metrics |

Configuration

| Topic | URL | |-------|-----| | Configure and manage Durable Task hubs storage | https://learn.microsoft.com/en-us/azure/durable-task/common/durable-task-hubs |

Integrations & Coding Patterns

| Topic | URL | |-------|-----| | Us