# Cost Audit Master

> Master orchestrator for cloud cost audits. Coordinates multiple service-specific audit skills to provide comprehensive cost optimization recommendations. Trigger when user mentions full cost audit, comprehensive optimization, or multi-service cost review.

- Skill: `huifer/cost-audit-master` (Agent Skill, multi-file: 6 files)
- Install (CLI): `npx skillmds@latest add huifer/cost-audit-master`
- Raw SKILL.md: https://api.skillmd.com/api/skills/huifer/cost-audit-master/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: huifer (https://skillmd.com/u/huifer)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/huifer/cost-audit-master

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# Cloud Cost Audit Master

## Supported Services

| Service | Audit Skill | Key Metrics |
|---------|-------------|-------------|
| Supabase | supabase-audit | DB size, queries, storage, Auth MAU |
| Cloudflare | cloudflare-audit | Workers, D1, KV, R2 |
| D1 | d1-cost-optimizer | Row Reads, indexes |
| Redis | redis-audit | Memory, connections |
| Indexes | index-optimizer | Missing, unused indexes |
| Queries | query-rewriter | Inefficient patterns |
| Monitoring | cost-monitor | Alerts, trends |
| Budget | spend-cap-manager | Spend caps, limits |

## Audit Workflow

### Step 1: Service Discovery

Identify all cloud services in use.

### Step 2: Execute Service Audits

Run each service-specific audit skill:
- supabase-audit → Database performance
- cloudflare-audit → Workers, D1, KV, R2
- redis-audit → Memory, connections
- index-optimizer → Index analysis
- query-rewriter → Query patterns

See `cases/full-audit.md` for comprehensive audit process.

### Step 3: Aggregate Results

Collect findings from all audits.

### Step 4: Prioritize Recommendations

Rank by:
1. Impact (cost savings)
2. Effort (implementation time)
3. Risk (potential issues)

### Step 5: Generate Report

Create comprehensive audit report with prioritized action plan.

## Matching Cases

| Scope | Case File | Output |
|-------|-----------|--------|
| Full audit | `cases/full-audit.md` | Comprehensive report |

## Output Format

```
# Cloud Cost Audit Report

**Date:** YYYY-MM-DD
**Scope:** All services

## Executive Summary
- Total monthly cost: $X
- Potential savings: $X (XX%)
- Priority actions: X

## Service Analysis

### Supabase
- Status: [OK/Warning/Critical]
- Findings: X issues
- Savings: $X/month

### Cloudflare
- Status: [OK/Warning/Critical]
- Findings: X issues
- Savings: $X/month

### Redis
- Status: [OK/Warning/Critical]
- Findings: X issues
- Savings: $X/month

## Priority Recommendations

### P0 - Immediate (This Week)
1. [Action] → $X savings
2. [Action] → $X savings

### P1 - Short-term (This Month)
1. [Action] → $X savings

### P2 - Medium-term (This Quarter)
1. [Action] → $X savings

## Implementation Plan
| Week | Actions | Expected Savings |
|------|---------|------------------|
| 1 | P0 items | $X |
| 2 | P1 items | $X |
| 3-4 | P2 items | $X |

## Monitoring Setup
Reference: cost-monitor skill

## Next Audit
Recommended: YYYY-MM-DD (30 days)
```