azure-documentdb

# Azure DocumentDB Skill

This skill provides expert guidance for Azure DocumentDB. 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](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 |
|----------|-------|-------------|
| Troubleshooting | L37-L45 | Diagnosing and fixing DocumentDB issues: common errors, CMK encryption problems, query performance via explain(), connectivity, and replication troubleshooting. |
| Best Practices | L46-L56 | Best practices for DocumentDB indexing and queries, safe index changes, and configuring cross-region replication and high availability for resilient, performant data access. |
| Decision Making | L57-L72 | Guides for choosing between DocumentDB and MongoDB services, planning migrations, configuring cross-region failover, and selecting optimal vector search/index algorithms across languages. |
| Architecture & Design Patterns | L73-L84 | Patterns for scaling, HA/DR, sharding, multi‑cloud setups, and building Go/TypeScript AI agents (including autonomous travel) on Azure DocumentDB. |
| Limits & Quotas | L85-L98 | Limits, quotas, and configuration constraints for DocumentDB: compute/storage tiers, free tier caps, SSD performance, indexing/text index limits, document/batch sizes, diagnostics, and feature availability. |
| Security | L99-L110 | Securing DocumentDB clusters: encryption at rest and with customer keys, firewall and public access controls, Private Link, Entra ID RBAC, native users/privileges, and security best practices. |
| Configuration | L111-L131 | Configuring DocumentDB features: search (BM25, vector, fuzzy, phrase, geo), MongoDB compatibility, change streams, replication/scale, transactions, Data API, alerts, and monitoring. |
| Integrations & Coding Patterns | L132-L157 | Patterns and code to connect apps and AI/RAG tools to Azure DocumentDB, including drivers, HTTPS Data API, migrations (Mongo/Cassandra), vector search, and sample app integrations. |
| Deployment | L158-L164 | Guides for deploying and managing DocumentDB clusters: local dev to Azure, backup/restore, version upgrades, and IaC deployment with Bicep and Terraform. |

### Troubleshooting
| Topic | URL |
|-------|-----|
| Troubleshoot common Azure DocumentDB issues | https://learn.microsoft.com/en-us/azure/documentdb/faq |
| Troubleshoot CMK encryption issues in Azure DocumentDB | https://learn.microsoft.com/en-us/azure/documentdb/how-to-database-encryption-troubleshoot |
| Diagnose query performance using explain() in DocumentDB | https://learn.microsoft.com/en-us/azure/documentdb/how-to-read-explain-output |
| Troubleshoot common Azure DocumentDB errors and connectivity | https://learn.microsoft.com/en-us/azure/documentdb/troubleshoot-common-issues |
| Troubleshoot Azure DocumentDB replication issues | https://learn.microsoft.com/en-us/azure/documentdb/troubleshoot-replication |

### Best Practices
| Topic | URL |
|-------|-----|
| Use background indexing safely in Azure DocumentDB | https://learn.microsoft.com/en-us/azure/documentdb/background-indexing |
| Apply cross-region replication best practices in DocumentDB | https://learn.microsoft.com/en-us/azure/documentdb/cross-region-replication |
| Implement HA and replication best practices in DocumentDB | https://learn.microsoft.com/en-us/azure/documentdb/high-availability-replication-best-practices |
| Apply indexing best practices for Azure DocumentDB collections | https://learn.microsoft.com/en-us/azure/documentdb/how-to-create-indexes |
| Explore practical indexing scenarios in Azure DocumentDB | https://learn.microsoft.com/en-us/azure/documentdb/how-to-index |
| Safely migrate from non-ordered to ordered indexes in DocumentDB | https://learn.microsoft.com/en-us/azure/documentdb/how-to-migrate-ordered-indexes |
| Optimize Azure DocumentDB queries with Index Advisor | https://learn.microsoft.com/en-us/azure/documentdb/index-advisor |

### Decision Making
| Topic | URL |
|-------|-----|
| Choose Azure first-party services for MongoDB workloads | https://learn.microsoft.com/en-us/azure/documentdb/azure-mongo-first-party |
| Decide between Azure DocumentDB and MongoDB Atlas | https://learn.microsoft.com/en-us/azure/documentdb/compare-mongodb-atlas |
| Choose cross-region failover modes in Azure DocumentDB | https://learn.microsoft.com/en-us/azure/documentdb/failover-modes |
| Assess MongoDB readiness and plan migration to DocumentDB | https://learn.microsoft.com/en-us/azure/documentdb/how-to-assess-plan-migration-readiness |
| Evaluate MongoDB compatibility in managed services | https://learn.microsoft.com/en-us/azure/documentdb/managed-service-compatibility |
| Choose migration options from MongoDB to Azure DocumentDB | https://learn.microsoft.com/en-us/azure/documentdb/migration-options |
| Choose migration options from MongoDB to Azure DocumentDB | https://learn.microsoft.com/en-u