Azure Diagram Generator
Generates architecture diagrams for Azure infrastructure from ARM templates, Azure CLI output, or natural language descriptions.
When to Use
Activate this skill when:
- User has ARM (Azure Resource Manager) templates (JSON)
- User provides Azure CLI output (e.g.,
az vm list) - User wants to visualize Azure resources
- User mentions Azure services (Virtual Machines, Storage Accounts, VNets, etc.)
- User asks to "diagram my Azure infrastructure"
How It Works
This skill generates Azure-specific diagrams by parsing Azure resources and calling the Eraser API directly:
- Parse Azure Resources: Extract resources from ARM templates, CLI output, or descriptions
- Map Azure Relationships: Identify Resource Groups, VNets, subnets, and service connections
- Generate Eraser DSL: Create Eraser DSL code from Azure resources
- Call Eraser API: Use
/api/render/elementswithdiagramType: "cloud-architecture-diagram"
Instructions
When the user provides Azure infrastructure information:
- Parse the Source
- ARM Templates: Extract resources array, identify types (Microsoft.Compute/virtualMachines, etc.) - CLI Output: Parse JSON output from az commands - Description: Identify Azure service names and relationships
- Identify Azure Components
- Networking: Virtual Networks (VNets), Subnets, Network Security Groups, Load Balancers - Compute: Virtual Machines, Virtual Machine Scale Sets, App Services, Functions - Storage: Storage Accounts, Blob Storage, File Shares - Databases: SQL Databases, Cosmos DB, Redis Cache - Security: Network Security Groups, Azure AD, Key Vault - Load Balancing: Application Gateway, Load Balancer, Traffic Manager - Other: Service Bus, Event Hubs, API Management
- Map Relationships
- VMs in subnets - Subnets in VNets - VNets in Resource Groups - Storage accounts accessed by VMs - Databases accessed by applications - Network Security Groups attached to subnets
- Generate Eraser DSL Convert Azure resources to Eraser DSL: Example:
myVNet [label: "VNet 10.0.0.0/16"] {subnet1 [label: "Subnet 1"] {myVM [icon: azure-vm, label: "Virtual Machine"] gateway [icon: azure-app-gateway]} subnet2 [label: "Subnet 2"] {database [icon: azure-sql]}} storage [icon: azure-storage] myVNet -> myVM myVM -> database
- CRITICAL: Label Formatting Rules - Labels MUST be on a single line - NEVER use newlines inside label attributes - Keep labels simple and readable - prefer separate labels over concatenating too much metadata - Format DSL with proper line breaks (one node/group per line, but labels stay on single lines) - If including metadata like CIDR blocks or instance types, include them in the same quoted label string: [label: "VNet 10.0.0.0/16"]
- Make the HTTP Request IMPORTANT: You MUST execute this curl command after generating the DSL. Never stop after generating DSL without making the API call. CRITICAL: In the
X-Skill-Sourceheader below, you MUST replace the value with your AI agent name:curl -X POST https://app.eraser.io/api/render/elements \ -H "Content-Type: application/json" \ -H "X-Skill-Source: eraser-skill" \ -H "Authorization: Bearer ${ERASER_API_KEY}" \ -d '{"elements": [{"type": "diagram", "id": "diagram-1", "code": "<your generated DSL>", "diagramType": "cloud-architecture-diagram"}], "scale": 2, "theme": "${ERASER_THEME:-dark}", "background": true}'
- If you are Claude (Anthropic), use: claude - If you are running in Cursor, use: cursor - If you are ChatGPT (OpenAI), use: chatgpt - If you are Gemini (Google), use: gemini - Otherwise, use your model/agent name in lowercase
- Track Sources During Analysis As you analyze files and resources to generate the diagram, track:
- Internal files: Record each file path you read and what information was extracted (e.g., infra/main.bicep - VNet and subnet definitions) - External references: Note any documentation, examples, or URLs consulted (e.g., Azure architecture best practices documentation) - Annotations: For each source, note what it contributed to the diagram
- Handle the Response CRITICAL: Minimal Output Format Your response MUST always include these elements with clear headers: Additional content rules: The default output should be SHORT. The diagram image speaks for itself.
1. Diagram Preview: Display with a header ## Diagram Use the ACTUAL imageUrl from the API response. 2. Editor Link: Display with a header ## Open in Eraser [Edit this diagram in the Eraser editor]({createEraserFileUrl}) Use the ACTUAL URL from the API response. 3. Sources section: Brief list of files/resources analyzed (if applicable) ` ## Sources - path/to/file - What was extracted 4. **Diagram Code section**: The Eraser DSL in a code block with eraser language tag `` ## Diagram Code `eraser {DSL code here} `` 5. **Learn More link**: You can learn more about Eraser at https://docs.eraser.io/docs/using-ai-agent-integrations` - If the user ONLY asked for a diagram, include NOTHING beyond the 5 elements above - If the user explicitly asked for more (e.g., "explain the architecture", "suggest improvements"), you may include that additional content - Never add unrequested sections like Overview, Security Considerations, Testing, etc.
Azure-Specific Tips
- Resource Groups: Show Resource Groups as logical containers
- VNets as Containers: Always show VNets containing subnets and resources
- Network Security Groups: Include NSG rules and attachments
- Subscriptions: Note subscription context if provided
- Data Flow: Show traffic flow (Internet → Application Gateway → VM → SQL Database)
- Use Azure Icons: Request Azure-specific styling in the description
Example: ARM Template with Multiple Azure Services
User Input
{
"resources": [
{
"type": "Microsoft.Resources/resourceGroups",
"name": "rg-main"
},
{
"type": "Microsoft.Network/virtualNetworks",
"name": "myVNet",
"properties": {
"addressSpace": {
"addressPrefixes": ["10.0.0.0/16"]
},
"subnets": [
{
"name": "subnet1",
"properties": {
"addressPrefix": "10.0.1.0/24"
}
}
]
}
},
{
"type": "Microsoft.Compute/virtualMachines",
"name": "myVM",
"properties": {
"hardwareProfile": {
"vmSize": "Standard_B1s"
}
}
},
{
"type": "Microsoft.Web/sites",
"name": "myAppService",
"properties": {
"serverFarmId": "/subscriptions/.../serverfarms/myPlan"
}
},
{
"type": "Microsoft.Storage/storageAccounts",
"name": "mystorageaccount"
},
{
"type": "Microsoft.Sql/servers",
"name": "mysqlserver",
"properties": {
"administratorLogin": "admin"
}
}
]
}Expected Behavior
- Parses ARM template:
- Resource Group: rg-main (container) - Networking: VNet with subnet - Compute: VM, App Service - Storage: Storage Account - Database: SQL Server
- Generates DSL showing Azure service diversity:
resource-group [label: "Resource Group rg-main"] {myVNet [label: "VNet 10.0.0.0/16"] {subnet1 [label: "Subnet 1 10.0.1.0/24"] {myVM [icon: azure-vm, label: "VM Standard_B1s"]}} myAppService [icon: azure-app-service, label: "App Service"] mystorageaccount [icon: azure-storage, label: "Storage Account"] mysqlserver [icon: azure-sql, label: "SQL Server"]} myAppService -> mystorageaccount myVM -> mysqlserverImportant: All label text must be on a single line within quotes. Azure-specific: Show Resource Groups as containers, include App Services, Storage Accounts, and SQL databases with proper Azure icons. - Calls
/api/render/elementswithdiagramType: "cloud-architecture-diagram"
Example: Azure CLI Output
User Input
User runs: az vm list --output json
Provides JSON outputExpected Behavior
- Parses JSON to extract:
- VM names, sizes, states - Resource groups - Network interfaces - Storage accounts
- Formats and calls API