AzureFinOps Skill
Azure cost optimization through reservation analysis, waste discovery, and stakeholder reporting.
Important
- All Azure operations are READ-ONLY — zero modifications to any resource
- Primary output language: Portuguese (BR) for stakeholder responses
- Python CLI fallback:
uv run python -m azure_finopswhen MCP/CLI auth unavailable
Context Files
AzureToolReference.md— MCP tools + CLI commands quick referenceReservationInventory.md— SKU matching and reservation interpretation SOPPricingComparison.md— PAYG vs RI pricing methodology and savings formulas
Workflow Routing
| Workflow | Trigger | File |
|---|---|---|
| ValidateCosts | "validate costs", "are these reservations or PAYG", "check billing" | Workflows/ValidateCosts.md |
| FindWaste | "find waste", "orphaned disks", "orphaned resources" | Workflows/FindWaste.md |
| CoverageAnalysis | "reservation coverage", "reservation gaps", "savings analysis" | Workflows/CoverageAnalysis.md |
| DraftResponse | "draft response for", "resposta para", "executive summary" | Workflows/DraftResponse.md |
Examples
Example 1 — Cost Validation:
"Are these January costs reservations or pay-as-you-go?" Routes to:
Workflows/ValidateCosts.md
Example 2 — Waste Discovery:
"Find orphaned disks and wasted resources across all subscriptions" Routes to:
Workflows/FindWaste.md
Example 3 — Executive Response:
"Draft a response for Jean about the January billing anomalies" Routes to:
Workflows/DraftResponse.md
Gotchas
- Reservation matching: SKU naming differs between usage data and purchase data —
Standard_D8s_v3in usage vsD8sv3in RI. A direct join misses 100%. - Savings Plan vs Reservation can stack — calculators that pick one ignore the combined savings.
- PAYG vs RI pricing: Marketplace listings are excluded from RI — surprise unreserved charges show up for SQL Server BYOL, etc.
- Cost data lag is 24-48 hours — same-day analyses miss recent activity entirely.
- RI scope (shared vs single-subscription): wrong scope means the RI applies to unintended workloads — and you discover it months later in an audit.
- Currency conversion in EA reports: exchange rate is locked at month close; mid-month estimates use a different rate than the final invoice.