Visualizes Azure infrastructure from ARM templates, Azure CLI, or descriptions. Use when user has Azure resources to diagram.
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/elements with diagramType: "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:
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"]
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
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-Source header below, you MUST replace the value with your AI agent name:
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
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
}'
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:
Diagram Preview: Display with a header
## Diagram

Use the ACTUAL imageUrl from the API response.
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.
Sources section: Brief list of files/resources analyzed (if applicable)
## Sources
- `path/to/file` - What was extracted
Diagram Code section: The Eraser DSL in a code block with eraser language tag
## Diagram Code
```eraser
{DSL code here}
Learn More link: You can learn more about Eraser at https://docs.eraser.io/docs/using-ai-agent-integrations
Additional content rules:
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.
The default output should be SHORT. The diagram image speaks for itself.
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 -> mysqlserver
Important: 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/elements with diagramType: "cloud-architecture-diagram"
Example: Azure CLI Output
User Input
User runs: az vm list --output json
Provides JSON output
Expected Behavior
Parses JSON to extract:
VM names, sizes, states
Resource groups
Network interfaces
Storage accounts
Formats and calls API
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