Azure Enterprise Infra Planner

# Azure Enterprise Infra Planner

## When to Use This Skill

Activate this skill when user wants to: - Plan enterprise Azure infrastructure from a workload or architecture description - Architect a landing zone, hub-spoke network, or multi-region topology - Design networking infrastructure: VNets, subnets, firewalls, private endpoints, VPN gateways - Plan identity, RBAC, and compliance-driven infrastructure - Generate Bicep or Terraform for subscription-scope or multi-resource-group deployments - Plan disaster recovery, failover, or cross-region high-availability topologies

## Quick Reference

| Property | Details | |---|---| | MCP tools | `insights_get`, `get_azure_bestpractices_get`, `wellarchitectedframework_serviceguide_get`, `microsoft_docs_fetch`, `microsoft_docs_search`, `bicepschema_get` | | CLI commands | `az deployment group create`, `az bicep build`, `az resource list`, `terraform init`, `terraform plan`, `terraform validate`, `terraform apply`, `checkov` | | Output schema | [schema.md](references/schema.md) | | Key references | [workflow.md](references/workflow.md), [waf-checklist.md](references/waf-checklist.md), [resources/](references/resources/README.md), [constraints/](references/constraints/README.md) |

## Workflow (Start Here)

Follow the step-by-step instructions in [workflow.md](references/workflow.md) to execute the 7 phases of infrastructure planning and provisioning.

## Architecture

The skill runs a **7-phase, gated pipeline**. Input is triaged into one of two flows:

- **Greenfield** — only new requirements; run the phases straight through. - **Referenced (brownfield)** — the user supplies something that already exists (a live resource / resource group / subscription, IaC or an infra plan, or a requirements doc). The same phases run, plus [referenced-workload.md](references/referenced-workload.md): existing resources are inventoried and referenced (never recreated), the new workload is wired into them, and **Phase 7 deploys additively** (incremental only — never modifying or destroying the referenced resources).

Every phase advances only after its gate passes. Phase 5 requires explicit user approval; **Phase 6 is a hardened, self-verifying gate** — the generated IaC must be secure-by-default, pass local validation (`az bicep build` / `terraform validate`) with zero errors, pass a `checkov` security scan with no unresolved high/critical findings, and the skill must **show the command output** and emit a completion self-check before advancing; Phase 7 requires an explicit, risk-acknowledged deploy confirmation.

```mermaid flowchart TD IN([Input]) --> TRIAGE{Existing infra<br/>referenced?} TRIAGE -- "No (greenfield)" --> P1 TRIAGE -- "Yes (referenced)" --> RW[/referenced-workload.md:<br/>inventory + assign roles<br/>reference, never recreate/] RW --> P1

subgraph PIPE [7-phase gated pipeline] direction TB P1[Phase 1 · Extract insights] --> P2[Phase 2 · Research best practices] P2 --> P3[Phase 3 · Research resources] P3 --> P4[Phase 4 · Generate plan] P4 --> P5{Phase 5 · Verify<br/>user approves?} P5 -- "no" --> P4 P5 -- "approved" --> P6[Phase 6 · Generate IaC] P6 --> VAL{Validate<br/>az bicep build /<br/>terraform validate} VAL -- "errors" --> P6 VAL -- "clean" --> P7{Phase 7 · Deploy<br/>risk-ack confirm?} end

P7 -- "greenfield" --> DEP[az deployment / terraform apply] P7 -- "referenced" --> DEPADD[Additive deploy · incremental only<br/>what-if preview · no destroy of<br/>referenced resources] DEP --> OUT([Deployed]) DEPADD --> OUT

classDef gate fill:#fff3cd,stroke:#d39e00,color:#000; classDef ref fill:#e2f0d9,stroke:#548235,color:#000; class P5,VAL,P7,TRIAGE gate; class RW,DEPADD ref; ```

**Artifacts** (written under `<project-root>/`): `.azure/insights.json` (Phase 1), `.azure/infrastructure-plan.json` (Phase 4, status `draft`→`approved`→`deployed`), and `infra/main.bicep` + `infra/modules/*` or `infra/main.tf` + `infra/modules/**` (Phase 6).

## MCP Tools

| Tool | Purpose | |------|---------| | `insights_get` | Retrieve insights about the user's existing Azure environment to guide planning decisions | | `get_azure_bestpractices_get` | Azure best practices for code generation, operations, and deployment | | `wellarchitectedframework_serviceguide_get` | WAF service guide for a specific Azure service | | `microsoft_docs_search` | Search Microsoft Learn for relevant documentation chunks | | `microsoft_docs_fetch` | Fetch full content of a Microsoft Learn page by URL | | `bicepschema_get` | Bicep schema definition for any Azure resource type (latest API version) |

## Error Handling

| Error | Cause | Fix | |---|---|---| | MCP tool error or not available | Tool call timeout, connection error, or tool doesn't exist | Retry once; fall back to reference files and notify user if unresolved | | Plan approval missing | `meta.status` is not