Cloud Cost Optimization Audit
Analyze cloud infrastructure spend across AWS, Azure, and GCP. Identify waste, rightsizing opportunities, and reserved instance savings.
What This Skill Does
When given cloud spend data (billing exports, cost explorer screenshots, or manual input), this skill:
- Categorizes spend across 8 cost domains (compute, storage, networking, databases, AI/ML, observability, security, licensing)
- Identifies waste patterns using 12 common anti-patterns
- Calculates savings with specific dollar amounts per optimization
- Prioritizes actions by effort vs. impact (quick wins → strategic moves)
- Generates executive summary with 90-day roadmap
Cost Domains & Benchmarks (2026)
1. Compute (typically 40-55% of total)
- Idle instances: >30% idle = waste. Benchmark: <10% idle capacity
- Rightsizing: 60% of instances are oversized by 1+ size category
- Spot/preemptible: Batch workloads not on spot = 60-80% overpay
- Reserved/savings plans: On-demand for steady-state = 30-50% overpay
- Container density: <40% CPU utilization on nodes = poor bin-packing
2. Storage (typically 10-20%)
- Tiering: Data not accessed in 90 days still on hot storage = 60-80% overpay
- Snapshot sprawl: Orphaned snapshots older than 30 days
- Duplicate data: Cross-region replication without business justification
- Object lifecycle: No lifecycle policies = guaranteed bloat
3. Networking (typically 8-15%)
- Cross-AZ traffic: Unnecessary data transfer between zones ($0.01-0.02/GB)
- NAT gateway abuse: High-throughput through NAT vs. VPC endpoints
- CDN miss rate: >20% miss rate = CDN config issue
- Egress optimization: No committed use discounts on egress
4. Databases (typically 10-20%)
- Over-provisioned RDS/Cloud SQL: Multi-AZ for dev/staging environments
- Read replica sprawl: Replicas with <5% query load
- DynamoDB/Cosmos over-provisioning: Provisioned capacity 3x+ actual usage
- License waste: Commercial DB when open-source works
5. AI/ML Infrastructure (growing — 5-25%)
- GPU idle time: Training instances running 24/7 for 4hr/day workloads
- Inference over-provisioning: GPU instances for CPU-viable inference
- Model storage: Old model versions consuming storage
- API costs: Frontier model API calls without caching layer
6. Observability (typically 3-8%)
- Log ingestion bloat: Debug logs in production, duplicate log streams
- Metric cardinality: High-cardinality custom metrics ($$$)
- Trace sampling: 100% trace sampling when 10% suffices
- Retention overkill: 13-month retention for non-compliance data
7. Security (typically 2-5%)
- WAF rule bloat: Managed rule groups not actively tuned
- Key management: KMS keys for non-sensitive data
- Compliance scanning: Overlapping tools doing same checks
8. Licensing (typically 5-15%)
- Shelfware: Paid seats not logged in 60+ days
- Duplicate tools: Multiple tools solving same problem
- Enterprise tiers: Enterprise features unused, paying enterprise price
12 Waste Anti-Patterns
| # |
Pattern |
Typical Waste |
Fix Effort |
| 1 |
Zombie resources (stopped but attached) |
5-15% of bill |
Low |
| 2 |
Over-provisioned instances |
15-30% compute |
Medium |
| 3 |
No reserved capacity strategy |
25-40% compute |
Medium |
| 4 |
Hot storage hoarding |
40-70% storage |
Low |
| 5 |
Cross-AZ data transfer abuse |
10-30% network |
Medium |
| 6 |
Dev/staging mirrors production |
20-40% of envs |
Low |
| 7 |
Orphaned snapshots/AMIs |
3-8% storage |
Low |
| 8 |
Log ingestion without sampling |
30-60% observability |
Low |
| 9 |
GPU instances for CPU workloads |
70-85% compute |
Medium |
| 10 |
No spot/preemptible for batch |
60-80% batch |
Medium |
| 11 |
Shelfware licenses |
20-40% licensing |
Low |
| 12 |
No tagging = no accountability |
Unmeasurable |
High |
Savings Estimation Framework
For each finding, calculate:
Annual Savings = (Current Cost - Optimized Cost) × 12
Implementation Cost = Engineering Hours × Loaded Rate
ROI = (Annual Savings - Implementation Cost) / Implementation Cost
Payback Period = Implementation Cost / (Annual Savings / 12)
Typical Savings by Company Size
| Company Size |
Monthly Cloud Spend |
Typical Waste % |
Annual Savings |
| Startup (5-15) |
$2K-$15K |
35-50% |
$8K-$90K |
| Growth (15-50) |
$15K-$80K |
25-40% |
$45K-$384K |
| Mid-market (50-200) |
$80K-$500K |
20-35% |
$192K-$2.1M |
| Enterprise (200+) |
$500K-$5M+ |
15-25% |
$900K-$15M+ |
Output Format
Generate a report with:
- Executive Summary: Total spend, waste identified, savings potential, top 3 quick wins
- Domain Breakdown: Spend per domain vs. benchmarks
- Findings Table: Each finding with current cost, optimized cost, savings, effort, priority
- 90-Day Roadmap: Week 1-2 quick wins, Week 3-6 medium effort, Week 7-12 strategic
- Governance Recommendations: Tagging strategy, budget alerts, review cadence
Usage
Provide your cloud billing data in any format:
- AWS Cost Explorer export / Azure Cost Management / GCP Billing
- Monthly bill summary
- Architecture description with approximate sizing
- Or just describe your stack and team size for estimates
The agent will analyze and produce the full optimization report.
Want Industry-Specific Cloud Optimization?
Different industries have different compliance, data residency, and workload patterns that change the optimization calculus entirely.
Get your industry context pack — pre-built frameworks for Fintech, Healthcare, Legal, SaaS, Ecommerce, Construction, Real Estate, Recruitment, Manufacturing, and Professional Services.
🛒 Browse packs: https://afrexai-cto.github.io/context-packs/
🧮 Calculate your AI savings: https://afrexai-cto.github.io/ai-revenue-calculator/
🤖 Set up your agent: https://afrexai-cto.github.io/agent-setup/
Bundle deals:
- Pick 3 packs: $97
- All 10 packs: $197
- Everything bundle: $247
1---2name: cloud-cost-optimization-audit3description: Analyze cloud infrastructure spend across AWS, Azure, and GCP. Identify waste, rightsizing opportunities, and reserved instance savings.4---5
6# Cloud Cost Optimization Audit
7
8Analyze cloud infrastructure spend across AWS, Azure, and GCP. Identify waste, rightsizing opportunities, and reserved instance savings.
9
10## What This Skill Does
11
12When given cloud spend data (billing exports, cost explorer screenshots, or manual input), this skill:
13
141. **Categorizes spend** across 8 cost domains (compute, storage, networking, databases, AI/ML, observability, security, licensing)
152. **Identifies waste patterns** using 12 common anti-patterns
163. **Calculates savings** with specific dollar amounts per optimization
174. **Prioritizes actions** by effort vs. impact (quick wins → strategic moves)
185. **Generates executive summary** with 90-day roadmap
19
20## Cost Domains & Benchmarks (2026)
21
22### 1. Compute (typically 40-55% of total)
23- **Idle instances**: >30% idle = waste. Benchmark: <10% idle capacity
24- **Rightsizing**: 60% of instances are oversized by 1+ size category
25- **Spot/preemptible**: Batch workloads not on spot = 60-80% overpay
26- **Reserved/savings plans**: On-demand for steady-state = 30-50% overpay
27- **Container density**: <40% CPU utilization on nodes = poor bin-packing
28
29### 2. Storage (typically 10-20%)
30- **Tiering**: Data not accessed in 90 days still on hot storage = 60-80% overpay
31- **Snapshot sprawl**: Orphaned snapshots older than 30 days
32- **Duplicate data**: Cross-region replication without business justification
33- **Object lifecycle**: No lifecycle policies = guaranteed bloat
34
35### 3. Networking (typically 8-15%)
36- **Cross-AZ traffic**: Unnecessary data transfer between zones ($0.01-0.02/GB)
37- **NAT gateway abuse**: High-throughput through NAT vs. VPC endpoints
38- **CDN miss rate**: >20% miss rate = CDN config issue
39- **Egress optimization**: No committed use discounts on egress
40
41### 4. Databases (typically 10-20%)
42- **Over-provisioned RDS/Cloud SQL**: Multi-AZ for dev/staging environments
43- **Read replica sprawl**: Replicas with <5% query load
44- **DynamoDB/Cosmos over-provisioning**: Provisioned capacity 3x+ actual usage
45- **License waste**: Commercial DB when open-source works
46
47### 5. AI/ML Infrastructure (growing — 5-25%)
48- **GPU idle time**: Training instances running 24/7 for 4hr/day workloads
49- **Inference over-provisioning**: GPU instances for CPU-viable inference
50- **Model storage**: Old model versions consuming storage
51- **API costs**: Frontier model API calls without caching layer
52
53### 6. Observability (typically 3-8%)
54- **Log ingestion bloat**: Debug logs in production, duplicate log streams
55- **Metric cardinality**: High-cardinality custom metrics ($$$)
56- **Trace sampling**: 100% trace sampling when 10% suffices
57- **Retention overkill**: 13-month retention for non-compliance data
58
59### 7. Security (typically 2-5%)
60- **WAF rule bloat**: Managed rule groups not actively tuned
61- **Key management**: KMS keys for non-sensitive data
62- **Compliance scanning**: Overlapping tools doing same checks
63
64### 8. Licensing (typically 5-15%)
65- **Shelfware**: Paid seats not logged in 60+ days
66- **Duplicate tools**: Multiple tools solving same problem
67- **Enterprise tiers**: Enterprise features unused, paying enterprise price
68
69## 12 Waste Anti-Patterns
70
71| # | Pattern | Typical Waste | Fix Effort |
72|---|---------|--------------|------------|
73| 1 | Zombie resources (stopped but attached) | 5-15% of bill | Low |
74| 2 | Over-provisioned instances | 15-30% compute | Medium |
75| 3 | No reserved capacity strategy | 25-40% compute | Medium |
76| 4 | Hot storage hoarding | 40-70% storage | Low |
77| 5 | Cross-AZ data transfer abuse | 10-30% network | Medium |
78| 6 | Dev/staging mirrors production | 20-40% of envs | Low |
79| 7 | Orphaned snapshots/AMIs | 3-8% storage | Low |
80| 8 | Log ingestion without sampling | 30-60% observability | Low |
81| 9 | GPU instances for CPU workloads | 70-85% compute | Medium |
82| 10 | No spot/preemptible for batch | 60-80% batch | Medium |
83| 11 | Shelfware licenses | 20-40% licensing | Low |
84| 12 | No tagging = no accountability | Unmeasurable | High |
85
86## Savings Estimation Framework
87
88For each finding, calculate:
89```
90Annual Savings = (Current Cost - Optimized Cost) × 12
91Implementation Cost = Engineering Hours × Loaded Rate
92ROI = (Annual Savings - Implementation Cost) / Implementation Cost
93Payback Period = Implementation Cost / (Annual Savings / 12)
94```
95
96### Typical Savings by Company Size
97| Company Size | Monthly Cloud Spend | Typical Waste % | Annual Savings |
98|-------------|-------------------|----------------|---------------|
99| Startup (5-15) | $2K-$15K | 35-50% | $8K-$90K |
100| Growth (15-50) | $15K-$80K | 25-40% | $45K-$384K |
101| Mid-market (50-200) | $80K-$500K | 20-35% | $192K-$2.1M |
102| Enterprise (200+) | $500K-$5M+ | 15-25% | $900K-$15M+ |
103
104## Output Format
105
106Generate a report with:
1071. **Executive Summary**: Total spend, waste identified, savings potential, top 3 quick wins
1082. **Domain Breakdown**: Spend per domain vs. benchmarks
1093. **Findings Table**: Each finding with current cost, optimized cost, savings, effort, priority
1104. **90-Day Roadmap**: Week 1-2 quick wins, Week 3-6 medium effort, Week 7-12 strategic
1115. **Governance Recommendations**: Tagging strategy, budget alerts, review cadence
112
113## Usage
114
115Provide your cloud billing data in any format:
116- AWS Cost Explorer export / Azure Cost Management / GCP Billing
117- Monthly bill summary
118- Architecture description with approximate sizing
119- Or just describe your stack and team size for estimates
120
121The agent will analyze and produce the full optimization report.
122
123---
124
125## Want Industry-Specific Cloud Optimization?
126
127Different industries have different compliance, data residency, and workload patterns that change the optimization calculus entirely.
128
129**Get your industry context pack** — pre-built frameworks for Fintech, Healthcare, Legal, SaaS, Ecommerce, Construction, Real Estate, Recruitment, Manufacturing, and Professional Services.
130
131🛒 Browse packs: https://afrexai-cto.github.io/context-packs/
132🧮 Calculate your AI savings: https://afrexai-cto.github.io/ai-revenue-calculator/
133🤖 Set up your agent: https://afrexai-cto.github.io/agent-setup/
134
135**Bundle deals:**
136- Pick 3 packs: $97
137- All 10 packs: $197
138- Everything bundle: $247
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