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version: "1.0.1" name: azure-diagrams description: Comprehensive technical diagramming toolkit for solutions architects, presales, and developers. Creates Azure architecture diagrams (800+ Azure service icons), business process flows (swimlanes, workflows), ERD diagrams (database schemas), project timelines, UI wireframes, and network topology diagrams. Perfect for proposals, documentation, and architecture reviews. Also generates diagrams from Bicep, Terraform, and ARM templates. compatibility: Requires the Graphviz system package and the Python diagrams library (>=0.25.1). Works with Claude Code, GitHub Copilot, Cursor, Windsurf, VS Code, and any Agent Skills or AGENTS.md compatible tool. license: MIT metadata: author: community version: "2.0.0" repository: https://github.com/cmb211087/azure-diagrams-skill

Azure Architecture Diagrams Skill

A comprehensive technical diagramming toolkit for solutions architects, presales engineers, and developers. Generate professional diagrams for proposals, documentation, and architecture reviews.

⚡ Execution Method

Run the Python directly to generate the image, and keep the image but do not leave a throwaway .py script behind. The generated file is the deliverable.

Output location (portable). Write to a diagrams/ folder in the current working directory - this works in every tool and on every OS. If you are running in a sandbox that provides /mnt/user-data/outputs (e.g. Claude Code on the web), prefer that. Create the folder first.

POSIX shells (Claude Code, Cursor, Linux/macOS - bash/zsh):

bash

mkdir -p diagrams
python3 << 'EOF'
from diagrams import Diagram
from diagrams.azure.compute import AKS
from diagrams.azure.database import CosmosDb
 
with Diagram("My Architecture", filename="diagrams/architecture", show=False, outformat="png"):
    AKS("aks-prod") >> CosmosDb("cosmos-prod")
EOF

Windows PowerShell (e.g. GitHub Copilot on Windows - no heredoc): write a short script, run it, then delete it so nothing is left behind:

powershell

New-Item -ItemType Directory -Force diagrams > $null
@'
from diagrams import Diagram
from diagrams.azure.compute import AKS
from diagrams.azure.database import CosmosDb
with Diagram("My Architecture", filename="diagrams/architecture", show=False, outformat="png"):
    AKS("aks-prod") >> CosmosDb("cosmos-prod")
'@ | Set-Content _diagram.py; python _diagram.py; Remove-Item _diagram.py

Canned patterns (cross-platform) - use the bundled generator instead of writing code:

bash

python scripts/generate_diagram.py --list                       # list available patterns
python scripts/generate_diagram.py --pattern <name> --output diagrams/arch

📊 Diagram Types

Type	Reference File	Example Prompt
Azure Architecture	`references/azure-components.md`	"Design a microservices architecture with AKS and Cosmos DB"
Business Process Flow	`references/business-process-flows.md`	"Create a swimlane for invoice approval workflow"
Entity Relationship (ERD)	`references/entity-relationship-diagrams.md`	"Generate an ERD for customer and order entities"
Timeline / Gantt	`references/timeline-gantt-diagrams.md`	"Create a 6-month migration roadmap"
UI Wireframe	`references/ui-wireframe-diagrams.md`	"Design a KPI dashboard layout"
Common Patterns	`references/common-patterns.md`	"Show a hub-spoke network topology"

🔥 Bonus: Generate from Code

Can also create diagrams directly from infrastructure code:

Read the Bicep files in /infra and generate an architecture diagram

Analyze our Terraform modules and create a diagram grouped by subnet

Read azure-pipelines.yml and create a CI/CD pipeline diagram

Supports: Bicep, Terraform, ARM Templates, Azure Pipelines YAML, GitHub Actions

See references/iac-to-diagram.md for detailed prompts and examples.

Prerequisites

bash

# 1) Graphviz - the rendering engine (system package, not pip). Restart the terminal after.
winget install -e --id Graphviz.Graphviz   # Windows  (or: choco install graphviz)
brew install graphviz                       # macOS
sudo apt-get install -y graphviz            # Linux (Debian/Ubuntu)
 
# 2) Python library (a virtual environment is recommended):
pip install "diagrams>=0.25.1"
# optional extras: matplotlib (timeline/Gantt/wireframe), cairosvg (portable SVG)

Quick Start

python

from diagrams import Diagram, Cluster, Edge
from diagrams.azure.compute import FunctionApps, AKS, AppServices
from diagrams.azure.network import ApplicationGateway, LoadBalancers
from diagrams.azure.database import CosmosDb, SQLDatabases, CacheForRedis
from diagrams.azure.storage import BlobStorage
from diagrams.azure.integration import LogicApps, ServiceBus, APIManagement
from diagrams.azure.security import KeyVaults
from diagrams.azure.identity import ActiveDirectory
from diagrams.azure.ml import CognitiveServices
with Diagram("Azure Solution Architecture", show=False, direction="TB"):
    users = ActiveDirectory("Users")
    
    with Cluster("Frontend"):
        gateway = ApplicationGateway("App Gateway")
        web = AppServices("Web App")
    
    with Cluster("Backend"):
        api = APIManagement("API Management")
        functions = FunctionApps("Functions")
        aks = AKS("AKS")
    
    with Cluster("Data"):
        cosmos = CosmosDb("Cosmos DB")
        sql = SQLDatabases("SQL Database")
        redis = CacheForRedis("Redis Cache")
        blob = BlobStorage("Blob Storage")
    
    with Cluster("Integration"):
        bus = ServiceBus("Service Bus")
        logic = LogicApps("Logic Apps")
    
    users >> gateway >> web >> api
    api >> [functions, aks]
    functions >> [cosmos, bus]
    aks >> [sql, redis]
    bus >> logic >> blob

Supported Diagram Types

Type	Reference File	Use Case
Azure Architecture	`references/azure-components.md`	Cloud infrastructure, solution designs
Common Patterns	`references/common-patterns.md`	Web apps, microservices, serverless, data platforms
Business Process Flow	`references/business-process-flows.md`	Workflows, swimlanes, decisions
Entity Relationship (ERD)	`references/entity-relationship-diagrams.md`	Database schemas, data models
Timeline / Gantt	`references/timeline-gantt-diagrams.md`	Project plans, roadmaps
UI Wireframe	`references/ui-wireframe-diagrams.md`	Screen mockups, dashboards

Azure Service Categories

Category	Import	Key Services
Compute	`diagrams.azure.compute`	VM, AKS, Functions, App Service, Container Apps, Batch
Networking	`diagrams.azure.network`	VNet, Load Balancer, App Gateway, Front Door, Firewall, ExpressRoute
Database	`diagrams.azure.database`	SQL, Cosmos DB, PostgreSQL, MySQL, Redis, Synapse
Storage	`diagrams.azure.storage`	Blob, Files, Data Lake, NetApp, Queue, Table
Integration	`diagrams.azure.integration`	Logic Apps, Service Bus, Event Grid, APIM, Data Factory
Security	`diagrams.azure.security`	Key Vault, Sentinel, Defender, Security Center
Identity	`diagrams.azure.identity`	Entra ID, B2C, Managed Identity, Conditional Access
AI/ML	`diagrams.azure.ml`	Azure OpenAI, Cognitive Services, ML Workspace, Bot Service
Analytics	`diagrams.azure.analytics`	Synapse, Databricks, Data Explorer, Stream Analytics, Event Hubs
IoT	`diagrams.azure.iot`	IoT Hub, IoT Edge, Digital Twins, Time Series Insights
DevOps	`diagrams.azure.devops`	Azure DevOps, Pipelines, Repos, Boards, Artifacts
Web	`diagrams.azure.web`	App Service, Static Web Apps, CDN, Media Services
Monitor	`diagrams.azure.monitor`	Monitor, App Insights, Log Analytics

See references/azure-components.md for the complete list of 800+ components.

Common Architecture Patterns

Web Application (3-Tier)

python

from diagrams.azure.network import ApplicationGateway
from diagrams.azure.compute import AppServices
from diagrams.azure.database import SQLDatabases
gateway >> AppServices("Web") >> SQLDatabases("DB")

Microservices with AKS

python

from diagrams.azure.compute import AKS, ACR
from diagrams.azure.network import ApplicationGateway
from diagrams.azure.database import CosmosDb
gateway >> AKS("Cluster") >> CosmosDb("Data")
ACR("Registry") >> AKS("Cluster")

Serverless / Event-Driven

python

from diagrams.azure.compute import FunctionApps
from diagrams.azure.integration import EventGridTopics, ServiceBus
from diagrams.azure.storage import BlobStorage
EventGridTopics("Events") >> FunctionApps("Process") >> ServiceBus("Queue")
BlobStorage("Trigger") >> FunctionApps("Process")

Data Platform

python

from diagrams.azure.analytics import DataFactories, Databricks, SynapseAnalytics
from diagrams.azure.storage import DataLakeStorage
DataFactories("Ingest") >> DataLakeStorage("Lake") >> Databricks("Transform") >> SynapseAnalytics("Serve")

Hub-Spoke Networking

python

from diagrams.azure.network import VirtualNetworks, Firewall, VirtualNetworkGateways
with Cluster("Hub"):
    firewall = Firewall("Firewall")
    vpn = VirtualNetworkGateways("VPN")
    
with Cluster("Spoke 1"):
    spoke1 = VirtualNetworks("Workload 1")
    
spoke1 >> firewall

Connection Syntax

python

# Basic connections
a >> b                              # Simple arrow
a >> b >> c                         # Chain
a >> [b, c, d]                      # Fan-out (one to many)
[a, b] >> c                         # Fan-in (many to one)
# Labeled connections
a >> Edge(label="HTTPS") >> b       # With label
a >> Edge(label="443") >> b         # Port number
# Styled connections
a >> Edge(style="dashed") >> b      # Dashed line (config/secrets)
a >> Edge(style="dotted") >> b      # Dotted line
a >> Edge(color="red") >> b         # Colored
a >> Edge(color="red", style="bold") >> b  # Combined
# Bidirectional
a >> Edge(label="sync") << b        # Two-way
a - Edge(label="peer") - b          # Undirected

Diagram Attributes

python

with Diagram(
    "Title",
    show=False,                    # Don't auto-open
    filename="output",             # Output filename (no extension)
    direction="TB",                # TB, BT, LR, RL
    outformat="png",               # png (default, portable), svg, jpg, pdf
    graph_attr={
        "splines": "spline",       # Curved edges
        "nodesep": "1.0",          # Horizontal spacing
        "ranksep": "1.0",          # Vertical spacing
        "pad": "0.5",              # Graph padding
        "bgcolor": "white",        # Background color
    }
):

Clusters (Grouping)

python

with Cluster("Resource Group"):
    with Cluster("Subnet A"):
        vm1 = VM("VM 1")
        vm2 = VM("VM 2")
    
    with Cluster("Subnet B"):
        db = SQLDatabases("Database")

Cluster styling:

python

with Cluster("Styled", graph_attr={"bgcolor": "#E8F4FD", "style": "rounded"}):

Troubleshooting

Overlapping Nodes

Increase spacing for complex diagrams:

python

graph_attr={
    "nodesep": "1.2",   # Horizontal (default 0.25)
    "ranksep": "1.2",   # Vertical (default 0.5)
    "pad": "0.5"
}

Floating Edge Labels

Use xlabel instead of label:

python

# Instead of Edge(label="text")
a >> Edge(xlabel="text") >> b

Excessive Whitespace

Compress the output:

python

graph_attr={"pad": "0.2", "margin": "0", "ratio": "compress"}

Force Horizontal Alignment

Use subgraphs with same rank:

python

with Diagram(...):
    # These will be on the same horizontal level
    with Cluster("") as same_level:
        same_level.dot.body.append('rank=same')
        a = ServiceA("A")
        b = ServiceB("B")

See references/preventing-overlaps.md for detailed guidance.

Output Location

Save to a diagrams/ folder in the working directory (portable across tools and OSes), or to /mnt/user-data/outputs when running in a sandbox that provides it. Create the folder first with mkdir -p diagrams (POSIX) or New-Item -ItemType Directory -Force diagrams (PowerShell).

python

with Diagram("Name", show=False, filename="diagrams/architecture", outformat="png"):
    # ...

⚠️ CRITICAL: Professional Output Standards

The Key Setting: `labelloc='t'`

To keep labels inside cluster boundaries with the diagrams library, put labels ABOVE icons:

python

node_attr = {
    "fontname": "Arial Bold",
    "fontsize": "11",
    "labelloc": "t",  # KEY: Labels at TOP - stays inside clusters!
}
with Diagram("Title", node_attr=node_attr, ...):
    # Your diagram code

Full Professional Template

python

from diagrams import Diagram, Cluster, Edge
from diagrams.azure.compute import AKS
from diagrams.azure.database import SQLDatabases
graph_attr = {
    "bgcolor": "white",
    "pad": "0.8",
    "nodesep": "0.9",
    "ranksep": "0.9",
    "splines": "spline",
    "fontname": "Arial Bold",
    "fontsize": "16",
    "dpi": "200",              # High resolution
}
node_attr = {
    "fontname": "Arial Bold",  # Bold for readability
    "fontsize": "11",
    "labelloc": "t",           # Labels ABOVE icons - KEY!
}
cluster_style = {"margin": "30", "fontname": "Arial Bold", "fontsize": "14"}
with Diagram("My Architecture", 
             direction="TB",
             graph_attr=graph_attr,
             node_attr=node_attr):
    
    with Cluster("Data Tier", graph_attr=cluster_style):
        sql = SQLDatabases("sql-myapp-prod\nS3 tier")

Professional Standards Checklist

Check	Requirement
✅ labelloc='t'	Labels above icons (stays in clusters)
✅ Bold fonts	`fontname="Arial Bold"` for readability
✅ Full resource names	Actual names from IaC, not abbreviations
✅ High DPI	`dpi="200"` for crisp text
✅ Azure icons	Use `diagrams.azure.*` components
✅ Cluster margins	`margin="30"` or higher

⚠️ ALWAYS review the output image before delivering. If ANY text is outside boxes, increase margins or simplify clusters.

Scripts

Script	Purpose
`scripts/generate_diagram.py`	Interactive pattern generator
`scripts/multi_diagram_generator.py`	Multi-type diagram generator
`scripts/ascii_to_diagram.py`	Convert ASCII diagrams from markdown
`scripts/verify_installation.py`	Check prerequisites
`scripts/list_azure_nodes.py`	List all Azure icon classes in the installed library
`scripts/check_imports.py`	Validate every import in the docs against the library
`scripts/render_examples.py`	Execute and verify every runnable example block

Reference Files

File	Content
`references/iac-to-diagram.md`	Generate diagrams from Bicep/Terraform/ARM
`references/azure-components.md`	Complete list of 800+ Azure components
`references/common-patterns.md`	Ready-to-use architecture patterns
`references/business-process-flows.md`	Workflow and swimlane diagrams
`references/entity-relationship-diagrams.md`	Database ERD patterns
`references/timeline-gantt-diagrams.md`	Project timeline diagrams
`references/ui-wireframe-diagrams.md`	UI mockup patterns
`references/preventing-overlaps.md`	Layout troubleshooting guide
`references/sequence-auth-flows.md`	Authentication flow patterns
`references/quick-reference.md`	Copy-paste code snippets
`references/integration-services.md`	Azure Integration Services component imports
`references/large-diagram-strategies.md`	Splitting and C4-style views for large diagrams
`references/migration-patterns.md`	Legacy-to-Azure migration scenarios
`references/mermaid-output.md`	Zero-install Mermaid diagrams (GitHub / Azure DevOps / Confluence)
`references/c4-model.md`	C4 model context / container / component diagrams

← v1.0.0 All versions

Skill v1.0.1

Azure Architecture Diagrams Skill

⚡ Execution Method

📊 Diagram Types

🔥 Bonus: Generate from Code

Prerequisites

Quick Start

Supported Diagram Types

Azure Service Categories

Common Architecture Patterns

Web Application (3-Tier)

Microservices with AKS

Serverless / Event-Driven

Data Platform

Hub-Spoke Networking

Connection Syntax

Diagram Attributes

Clusters (Grouping)

Troubleshooting

Overlapping Nodes

Floating Edge Labels

Excessive Whitespace

Force Horizontal Alignment

Output Location

⚠️ CRITICAL: Professional Output Standards

The Key Setting: labelloc='t'

Full Professional Template

Professional Standards Checklist

Scripts

Reference Files

The Key Setting: `labelloc='t'`