# Cost Modeling

> See the main Cloud Cost Models skill for comprehensive coverage of cost modeling and pricing strategies.

- Skill: `majiayu000/cost-modeling` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds add majiayu000/cost-modeling`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/cost-modeling/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: DevOps & Infra
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/cost-modeling

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# Cost Modeling

This skill is covered in detail in the main **Cloud Cost Models** skill.

Please refer to: `42-cost-engineering/cloud-cost-models/SKILL.md`

That skill covers:
- Cloud pricing fundamentals
- AWS, GCP, and Azure pricing models
- Hidden costs (egress, NAT gateways, load balancers)
- Cost optimization strategies
- Cost allocation and tagging
- FinOps principles (Crawl, Walk, Run)
- TCO (Total Cost of Ownership) calculation
- Multi-cloud cost comparison
- Real cost optimization case studies

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## Related Skills
- `42-cost-engineering/cloud-cost-models` (Main skill)
- `42-cost-engineering/cost-observability`
- `42-cost-engineering/infra-sizing`