azure-functions
Expert knowledge for Azure Functions development including troubleshooting, best practices, decision making, limits & quotas, security, configuration, integrations & coding patterns, and deployment. Use when wiring Functions to HTTP/storage/queues, securing with VNets/MI, tuning scaling, or deployin
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SKILL.md
Azure Functions Skill
This skill provides expert guidance for Azure Functions. Covers troubleshooting, best practices, decision making, 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), useread_filewith the specified lines. For categories with file links (e.g.,[security.md](security.md)), useread_fileon the linked reference file
IMPORTANT for Agent: If
metadata.generated_atis more than 3 months old, suggest the user pull the latest version from the repository. Ifmcp_microsoftdocstools 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_fetchwith query stringfrom=learn-agent-skill. Returns Markdown. - Fallback: Use
fetch_webpagewith query stringfrom=learn-agent-skill&accept=text/markdown. Returns Markdown.
Category Index
| Category | Lines | Description |
|---|---|---|
| Troubleshooting | L36-L72 | Diagnosing and fixing Azure Functions errors (AZFD/AZFW codes), storage and config issues, runtime/SDK/version problems, networking, and language-specific (Node.js/Python) failures. |
| Best Practices | L73-L89 | Guidance on performance, reliability, HttpClient usage, DI, idempotency, event processing, and language-specific (Node.js, .NET, Python) optimization best practices for Azure Functions |
| Decision Making | L90-L114 | Guidance on choosing Functions hosting/runtime options, cost and networking tradeoffs, and planning/migrating between plans, runtimes, and platforms (incl. AWS Lambda and Cosmos/Service Bus upgrades). |
| Limits & Quotas | L115-L122 | Scaling limits, concurrency settings, target-based trigger scaling, and language/runtime support lifecycles for Azure Functions. |
| Security | L123-L135 | Guides for securing Functions: encryption at rest, secure storage and keys, private access (VNet/private endpoints), managed identity for SQL, and App Service security features. |
| Configuration | L136-L181 | Configuring Azure Functions runtime, bindings, triggers, networking, monitoring, app settings, hosted skills, and language/runtime versions, including local development and OpenTelemetry setup. |
| Integrations & Coding Patterns | L182-L284 | Patterns and how-tos for wiring Functions to external systems (HTTP, storage, messaging, databases, AI/OpenAI, Dapr, MCP, SignalR/Web PubSub) via triggers, input/output bindings, and worker extensions. |
| Deployment | L285-L312 | Deploying Azure Functions: provisioning hosting (Bicep/ARM/Terraform/PowerShell), CI/CD (GitHub Actions, Azure Pipelines), slots, containers/Kubernetes, language‑specific builds, and rollback/migration. |
Troubleshooting
Best Practices
Decision Making
Limits & Quotas
| Topic | URL |
|---|---|
| Understand event-driven scaling limits in Azure Functions | https://learn.microsoft.com/en-us/azure/azure-functions/event-driven-scaling |
| Configure concurrency behavior in Azure Functions | https://learn.microsoft.com/en-us/azure/azure-functions/functions-concurrency |
| Use target-based scaling for Azure Functions triggers | https://learn.microsoft.com/en-us/azure/azure-functions/functions-target-based-scaling |
| Check Azure Functions language support lifecycle | https://learn.microsoft.com/en-us/azure/azure-functions/supported-languages |
Security
Configuration
Integrations & Coding Patterns
Deployment
Files
1- SKILL.md
ec8d1a2b8e39.7 KB
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