1## Azure Redis Cost Optimization
2 
3Reference guide for identifying cost savings opportunities in Azure Redis deployments through analysis and targeted scans.
4 
5## Subscription Input Options
6 
7Accept any of these identifiers to identify subscriptions for analysis:
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9| Input Type | Example | Use Case |
10|------------|---------|----------|
11| **Subscription ID** | `a1b2c3d4-...` | Analyze specific subscription |
12| **Subscription Name** | `Production-Environment` | User-friendly identifier |
13| **Subscription Prefix** | `CacheTeam -` | Analyze all team subscriptions |
14| **Tenant ID** | `tenant-guid` | Analyze entire organization |
15| **"All my subscriptions"** | (keyword) | Scan all accessible subscriptions |
16 
17## Cost Optimization Rules
18 
19When analyzing each cache, apply these prioritized rules:
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21| Priority | Rule | Detection Logic | Recommendation | Avg Savings |
22|----------|------|----------------|----------------|-------------|
23| 🔴 Critical | Failed Cache | `provisioningState == 'Failed'` | Delete immediately | $50-300/mo |
24| 🔴 Critical | Stuck Creating | `provisioningState == 'Creating'` AND age >4 hours | Delete/support ticket | $50-300/mo |
25| 🟠 High | Premium in Dev | `sku.name == 'Premium'` AND `tags.environment in ['dev','test','staging']` | Downgrade to Standard | $175/mo |
26| 🟠 High | Enterprise Unused | `sku.name startsWith 'Enterprise'` AND no modules/clustering | Downgrade to Premium/Standard | $300-1000/mo |
27| 🟠 High | Old Test Cache | `tags.purpose == 'test'` AND age >60 days | Delete or downgrade | $50-150/mo |
28| 🟡 Medium | Large Dev Cache | `sku.capacity >3` AND `tags.environment == 'dev'` | Reduce size | $100-300/mo |
29| 🟡 Medium | No Expiration Tag | Missing `expirationDate` or `ttl` tag | Add cleanup policy | N/A |
30| 🟢 Low | Untagged Resource | Missing required tags (`environment`, `owner`) | Apply tags | N/A |
31| 🟢 Low | Old Cache | Age >365 days | Review if still needed | Variable |
32 
33## Report Templates
34 
35### Subscription-Level Summary
36Quick overview of costs and issues per subscription (use for multi-subscription scans). Include: subscription name/ID, total monthly cost, number of caches, cache count by SKU tier, and top issues found.
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38### Detailed Cache Analysis
39Individual cache breakdown with specific recommendations. Include: cache name, resource group, SKU tier, current cost, memory usage %, CPU usage %, connection count, and specific rightsizing recommendations.
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41## Tools & Commands
42 
43**MCP Tool:** `azure__redis` with command `redis_list` (parameter: `subscription`)
44 
45**Azure CLI Equivalents:**
46- `az account list` - List subscriptions
47- `az redis list --subscription <id>` - List Redis caches
48- `az redis show` - Get cache details
49- `az redis delete` - Remove cache
50