| name | azure-adr |
| description | Creates Azure Architecture Decision Records with WAF mapping, alternatives, and consequences. USE FOR: ADR creation, architecture decisions, trade-off analysis, WAF pillar justification. DO NOT USE FOR: Bicep/Terraform code generation, diagram creation, cost estimates. |
| compatibility | Works with Claude Code, GitHub Copilot, VS Code, and any Agent Skills compatible tool; no external dependencies required. |
| license | MIT |
| metadata | {"author":"jonathan-vella","version":"1.0","category":"document-creation"} |
Azure Architecture Decision Records (ADR) Skill
Create formal Architecture Decision Records that document significant infrastructure
decisions with Azure-specific context, WAF pillar analysis, and implementation guidance.
When to Use This Skill
| Trigger Phrase | Use Case |
|---|
| "Create an ADR for..." | Document a specific architectural decision |
| "Document the decision to use..." | Record technology/pattern choice |
| "Record why we chose..." | Capture decision rationale |
| "Architecture decision record for..." | Formal ADR creation |
Output Format
ADRs are saved to the project's agent-output folder:
agent-output/{project}/
├── 03-des-adr-0001-{short-title}.md # Design phase ADRs
└── 07-ab-adr-0001-{short-title}.md # As-built phase ADRs
Naming Convention
- Prefix:
03-des-adr- (design) or 07-ab-adr- (as-built)
- Number: 4-digit sequence (0001, 0002, etc.)
- Title: Lowercase with hyphens (e.g.,
use-cosmos-db-for-state)
ADR Template Structure
📋 Reference: Read references/adr-template.md for the full ADR template
with all sections (Context, Decision, Alternatives, Consequences,
WAF Pillar Analysis, Compliance, Implementation Notes).
Example Prompts
Design Phase ADR
Create an ADR documenting our decision to use Azure Cosmos DB
instead of Azure SQL for the e-commerce catalog service.
Consider WAF implications and cost trade-offs.
As-Built ADR
Document the architectural decision we made during implementation
to use Azure Front Door instead of Application Gateway.
Include the performance testing results that informed this choice.
From Assessment
Use the azure-adr skill to document the database decision from
the architecture assessment above as a formal ADR.
Integration with Workflow
| Step | Context | ADR Type |
|---|
| Step 2 (Architect) | After WAF assessment | Design ADR (03-des-adr-*) |
| Step 5 (Bicep Code) | After implementation choices | As-built ADR (07-ab-adr-*) |
| Step 6 (Deploy) | After deployment decisions | As-built ADR (07-ab-adr-*) |
Best Practices
- One decision per ADR - Keep ADRs focused on a single decision
- Include alternatives - Always document what was considered and rejected
- Map to WAF pillars - Show impact on each Well-Architected pillar
- Link to requirements - Reference the requirement that drove the decision
- Keep it concise - ADRs should be readable in 5 minutes
Common ADR Topics
| Category | Example Decisions |
|---|
| Compute | AKS vs App Service, Container Apps vs Functions |
| Data | Cosmos DB vs SQL, Redis vs Table Storage |
| Networking | Hub-spoke vs flat, Private Link vs Service Endpoints |
| Security | Managed Identity vs SPN, Key Vault vs App Config |
| Integration | Event Grid vs Service Bus, API Management tiers |
What This Skill Does NOT Do
- ❌ Generate Bicep or Terraform code
- ❌ Create architecture diagrams (use
drawio skill)
- ❌ Deploy resources (use
deploy agent)
- ❌ Create implementation plans (use
iac-planner agent)
Workflow Integration
This skill produces artifacts in Step 3 (design) or Step 7 (as-built).
| Workflow Step | ADR Prefix | Status Default | Purpose |
|---|
| Step 3 (Design) | 03-des-adr- | Proposed | Document decisions before build |
| Step 7 (As-Built) | 07-ab-adr- | Accepted | Document implemented decisions |
Artifact Suffix Rules
- When called from Architect → use
03-des-adr- prefix
- When called after deployment (Step 6) → use
07-ab-adr- prefix
- When called standalone:
- Design/proposal/planning language → use
03-des-adr-
- Deployed/implemented/current state language → use
07-ab-adr-
Important: The 07-ab-adr- ADR may differ from 03-des-adr- if implementation required changes.
Document any deviations in the "Implementation Notes" section.
Generation Workflow
Follow these steps when creating ADRs:
- Gather Information - Collect decision context, alternatives, stakeholders
- Determine Number - Check existing ADRs in
agent-output/{project}/ for next sequence
- Determine Phase - Design (
03-des-) or As-Built (07-ab-) based on context
- Generate Document - Create ADR following template structure
- Include WAF Analysis - Map decision impact to all 5 WAF pillars
- Document Alternatives - List at least 2-3 alternatives with rejection reasons
Quality Checklist
Before finalizing the ADR, verify:
Guardrails
📋 Reference: Read references/guardrails.md for detailed DO/DON'T rules and anti-pattern table.
Key rules: Always include WAF analysis, document 2-3 alternatives,
include both positive and negative consequences, use specific decision statements.
Reference Index
Load these on demand — do NOT read all at once:
| Reference | When to Load |
|---|
references/adr-template.md | Full ADR template with all sections |
references/guardrails.md | Guardrails, DO/DON'T rules, anti-patterns |
