aws-billing-and-cost-management

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Billing and Cost Management

账单与成本管理

Overview

概述

Analyze, optimize, and manage AWS costs. This skill encodes domain expertise from AWS's cost management products — gotchas, correct API usage patterns, and optimization workflows that models frequently get wrong.

分析、优化并管理AWS成本。本技能整合了AWS成本管理产品的领域专业知识——包括常见陷阱、正确的API使用模式，以及模型常出错的优化工作流。

Usage

使用场景

Use this skill when:

Analyzing AWS spending, cost trends, or cost breakdowns
Setting up or managing budget alerts
Evaluating Savings Plans or Reserved Instance purchases
Right-sizing EC2, Lambda, RDS, or EBS resources
Looking up AWS service pricing
Running cost audits or investigating cost spikes
Querying CUR data with Athena
Scoping cost analysis to a specific billing view
Checking Free Tier usage

在以下场景中使用本技能：

分析AWS支出、成本趋势或成本细分
设置或管理预算告警
评估Savings Plans或Reserved Instance的购买方案
调整EC2、Lambda、RDS或EBS资源的规格
查询AWS服务定价
执行成本审计或调查成本激增问题
通过Athena查询CUR数据
将成本分析限定到特定账单视图
检查Free Tier使用情况

Core Concepts

核心概念

Cost Explorer — query cost/usage data by service, account, tag, or time range
Budgets — set spending thresholds with alerts; supports billing view scoping
Billing Views — scope cost data to a subset of billing (custom view, billing group, or primary)
Compute Optimizer — right-sizing recommendations for EC2, Lambda, EBS, RDS
Cost Optimization Hub — aggregated savings recommendations across services
Savings Plans / Reserved Instances — commitment-based discounts
CUR 2.0 — detailed line-item billing data queryable via Athena

Recommended setup: Use the AWS MCP server for sandboxed execution, audit logging, and enterprise controls. See: https://docs.aws.amazon.com/aws-mcp/

Without AWS MCP: All commands use standard AWS CLI syntax and work with any agent that has CLI access.

Cost Explorer — 按服务、账户、标签或时间范围查询成本/使用数据
Budgets — 设置支出阈值并配置告警；支持按账单视图限定范围
Billing Views — 将成本数据限定为账单的子集（自定义视图、账单组或主视图）
Compute Optimizer — 针对EC2、Lambda、EBS、RDS的资源规格调整建议
Cost Optimization Hub — 跨服务的聚合节省建议
Savings Plans / Reserved Instances — 基于承诺的折扣方案
CUR 2.0 — 可通过Athena查询的详细分项账单数据

推荐配置： 使用AWS MCP服务器进行沙箱执行、审计日志记录和企业级控制。参考：https://docs.aws.amazon.com/aws-mcp/

无AWS MCP时： 所有命令使用标准AWS CLI语法，适用于任何具备CLI访问权限的Agent。

Critical Rule: Always Check the Current Date

关键规则：始终检查当前日期

Before making ANY Cost Explorer, Budgets, or Savings Plans API call, you MUST determine the current date. Use a tool to get the current date and time — do NOT assume or guess the year. LLMs frequently default to dates from their training data instead of the actual current date, producing analyses of stale data that appear correct but are completely wrong.

在调用任何Cost Explorer、Budgets或Savings Plans API之前，必须确定当前日期。 使用工具获取当前日期和时间——绝不要假设或猜测年份。大语言模型经常默认使用训练数据中的日期而非实际当前日期，导致对过期数据的分析看似正确但完全错误。

Critical Rule: Deterministic Calculations

关键规则：确定性计算

You MUST NEVER perform numerical calculations (sums, averages, percentages, comparisons, counts, min/max) by reasoning in your response. LLM arithmetic is unreliable and produces wrong answers on cost data.

You MUST ALWAYS use a script or calculator tool for any math on data returned from API calls. Write a Python script that performs the calculation and prints the result. If the AWS MCP server's

run_script

tool is available, use it. Otherwise, run the script locally.

Read

references/deterministic-calculations.md

for patterns and examples.

绝不要通过推理在响应中执行数值计算（求和、平均值、百分比、比较、计数、最小/最大值）。 大语言模型的算术运算不可靠，会对成本数据产生错误结果。

必须始终使用脚本或计算器工具 对API调用返回的数据进行任何数学运算。编写Python脚本执行计算并打印结果。如果AWS MCP服务器的

run_script

工具可用，请使用它。否则，在本地运行脚本。

阅读

references/deterministic-calculations.md

获取模式和示例。

Decision Guide

决策指南

Question	Tool	Reference
What am I spending? Where are costs going up?	Cost Explorer	`references/cost-explorer.md`
How much does a service cost?	Price List API	`references/pricing-lookup.md`
Where can I save money? (start here)	Cost Optimization Hub	`references/cost-optimization-hub.md`
Should I buy Savings Plans?	CE SP Recommendations	`references/savings-plans.md`
Should I buy Reserved Instances?	CE RI Recommendations	`references/reserved-instances.md`
Deep-dive on a specific EC2/Lambda/EBS/RDS rec?	Compute Optimizer	`references/ec2-rightsizing.md` , `references/lambda-optimization.md` , `references/rds-optimization.md` , `references/ebs-optimization.md`
How do I set up budget alerts?	Budgets	`references/budgets.md`
What's causing a cost spike?	Cost Anomaly Detection	`references/cost-explorer.md`
Am I within Free Tier?	Free Tier API	`references/free-tier.md`
How do I reduce my bill?	Cost Audit workflow	`references/cost-audit.md`
How do I query detailed billing data?	CUR 2.0 + Athena	`references/cur-athena.md`
How do I optimize specific services?	Per-service patterns	`references/service-optimization.md`
How do I scope costs to a billing view?	Billing Views	See Billing Views below

问题	工具	参考文档
我的支出情况如何？成本增长来自哪里？	Cost Explorer	`references/cost-explorer.md`
某项服务的成本是多少？	Price List API	`references/pricing-lookup.md`
我可以从哪些方面省钱？（从此处开始）	Cost Optimization Hub	`references/cost-optimization-hub.md`
我应该购买Savings Plans吗？	CE SP Recommendations	`references/savings-plans.md`
我应该购买Reserved Instances吗？	CE RI Recommendations	`references/reserved-instances.md`
深入了解特定EC2/Lambda/EBS/RDS的建议？	Compute Optimizer	`references/ec2-rightsizing.md` , `references/lambda-optimization.md` , `references/rds-optimization.md` , `references/ebs-optimization.md`
如何设置预算告警？	Budgets	`references/budgets.md`
成本激增的原因是什么？	Cost Anomaly Detection	`references/cost-explorer.md`
我是否在Free Tier范围内？	Free Tier API	`references/free-tier.md`
如何降低账单金额？	成本审计工作流	`references/cost-audit.md`
如何查询详细账单数据？	CUR 2.0 + Athena	`references/cur-athena.md`
如何优化特定服务？	按服务分类的模式	`references/service-optimization.md`
如何按账单视图划分成本范围？	Billing Views	参见下方的【账单视图】

Common Tasks

常见任务

Analyze costs by service

按服务分析成本

bash

aws ce get-cost-and-usage \
  --time-period Start=2026-03-01,End=2026-04-01 \
  --granularity MONTHLY \
  --metrics UnblendedCost \
  --group-by Type=DIMENSION,Key=SERVICE

Default to

UnblendedCost

. Exclude Credits/Refunds with

--filter '{"Not":{"Dimensions":{"Key":"RECORD_TYPE","Values":["Credit","Refund"]}}}'

. End date is exclusive.

bash

aws ce get-cost-and-usage \
  --time-period Start=2026-03-01,End=2026-04-01 \
  --granularity MONTHLY \
  --metrics UnblendedCost \
  --group-by Type=DIMENSION,Key=SERVICE

默认使用

UnblendedCost

。可通过

--filter '{"Not":{"Dimensions":{"Key":"RECORD_TYPE","Values":["Credit","Refund"]}}}'

排除信用/退款项。结束日期为排他性日期。

Run a cost audit

执行成本审计

Read

references/cost-audit.md

for the full 7-step workflow: top cost drivers → month-over-month comparison → optimization recommendations → idle resources → commitment coverage → per-service quick wins → report.

阅读

references/cost-audit.md

获取完整的7步工作流：顶级成本驱动因素 → 月度对比 → 优化建议 → 闲置资源 → 承诺覆盖情况 → 按服务快速优化 → 报告。

Get right-sizing recommendations

获取资源规格调整建议

Compute Optimizer requires opt-in first:

aws compute-optimizer update-enrollment-status --status Active

. Then read

references/ec2-rightsizing.md

for EC2 or the relevant resource-specific reference.

Compute Optimizer需要先启用：

aws compute-optimizer update-enrollment-status --status Active

。然后阅读

references/ec2-rightsizing.md

获取EC2相关内容，或参考对应资源的专属文档。

Look up service pricing

查询服务定价

Read

references/pricing-lookup.md

for service codes and attribute filters. Common trap: Price List API service codes differ from Cost Explorer service names.

阅读

references/pricing-lookup.md

获取服务代码和属性筛选器。常见陷阱：Price List API的服务代码与Cost Explorer的服务名称不同。

Billing Views

账单视图

A billing view scopes cost and usage data to a specific slice of an account's billing (e.g., a billing group, custom view, or the default primary view). When the user wants to analyze costs through a particular billing view, add

--billing-view-arn

to supported API calls.

账单视图将成本和使用数据限定为账户账单的特定部分（例如，账单组、自定义视图或默认主视图）。当用户希望通过特定账单视图分析成本时，在支持的API调用中添加

--billing-view-arn

参数。

Discover available billing views

发现可用的账单视图

bash

aws billing list-billing-views \
  --billing-view-types PRIMARY CUSTOM BILLING_GROUP

Requires

billing:ListBillingViews

permission.

bash

aws billing list-billing-views \
  --billing-view-types PRIMARY CUSTOM BILLING_GROUP

需要

billing:ListBillingViews

权限。

Use a billing view with Cost Explorer

在Cost Explorer中使用账单视图

bash

aws ce get-cost-and-usage \
  --time-period Start=2026-03-01,End=2026-04-01 \
  --granularity MONTHLY \
  --metrics UnblendedCost \
  --group-by Type=DIMENSION,Key=SERVICE \
  --billing-view-arn arn:aws:billing::ACCOUNT_ID:billingview/BILLING_VIEW_ID

bash

aws ce get-cost-and-usage \
  --time-period Start=2026-03-01,End=2026-04-01 \
  --granularity MONTHLY \
  --metrics UnblendedCost \
  --group-by Type=DIMENSION,Key=SERVICE \
  --billing-view-arn arn:aws:billing::ACCOUNT_ID:billingview/BILLING_VIEW_ID

Create a budget scoped to a billing view

创建限定到账单视图的预算

In the

--budget

JSON, include the

BillingViewArn

field:

bash

aws budgets create-budget --account-id ACCOUNT_ID \
  --budget '{
    "BudgetName": "TeamX-Monthly",
    "BudgetLimit": {"Amount": "1000", "Unit": "USD"},
    "TimeUnit": "MONTHLY",
    "BudgetType": "COST",
    "BillingViewArn": "arn:aws:billing::ACCOUNT_ID:billingview/BILLING_VIEW_ID"
  }'

在

--budget

的JSON中包含

BillingViewArn

字段：

bash

aws budgets create-budget --account-id ACCOUNT_ID \
  --budget '{
    "BudgetName": "TeamX-Monthly",
    "BudgetLimit": {"Amount": "1000", "Unit": "USD"},
    "TimeUnit": "MONTHLY",
    "BudgetType": "COST",
    "BillingViewArn": "arn:aws:billing::ACCOUNT_ID:billingview/BILLING_VIEW_ID"
  }'

API support for

--billing-view-arn

支持

--billing-view-arn

的API

Supports `--billing-view-arn`	Does NOT support it
`ce get-cost-and-usage`	`ce get-reservation-coverage`
`ce get-cost-and-usage-with-resources`	`ce get-reservation-utilization`
`ce get-cost-forecast`	`ce get-savings-plans-coverage`
`ce get-usage-forecast`	`ce get-savings-plans-utilization`
`ce get-dimension-values`
`ce get-tags`
`ce get-cost-comparison-drivers`
`budgets create-budget` (in budget JSON)

支持 `--billing-view-arn`	不支持该参数
`ce get-cost-and-usage`	`ce get-reservation-coverage`
`ce get-cost-and-usage-with-resources`	`ce get-reservation-utilization`
`ce get-cost-forecast`	`ce get-savings-plans-coverage`
`ce get-usage-forecast`	`ce get-savings-plans-utilization`
`ce get-dimension-values`
`ce get-tags`
`ce get-cost-comparison-drivers`
`budgets create-budget` （在budget JSON中）

Troubleshooting

故障排除

Error	Cause	Fix
`ValidationException` on Cost Explorer	Wrong dimension key (e.g., `CHARGE_TYPE` instead of `RECORD_TYPE` )	Use `RECORD_TYPE` for charge type filtering
Empty results with filter	Filter value doesn't match exactly	Call `GetDimensionValues` first to get valid values
`AccessDeniedException` on hourly data	Hourly granularity not enabled	Enable in Cost Explorer preferences
`Account not registered` on Compute Optimizer	Not opted in	Run `update-enrollment-status --status Active`
Budgets API fails outside us-east-1	Budgets requires us-east-1	Set `--region us-east-1`
Cost Explorer `Total` empty with GroupBy	By design — totals excluded when grouping	Make separate call without GroupBy, or sum grouped results using a script
`AccessDeniedException` on `list-billing-views`	Missing permission	User needs `billing:ListBillingViews` permissions
`ValidationException` with `--billing-view-arn`	API doesn't support billing views, or malformed ARN	Check the API support table above; ARN format is `arn:aws:billing::ACCOUNT_ID:billingview/VIEW_ID`
Budget shows `UNHEALTHY` health status	Billing view access revoked or view deleted	Check `HealthStatus.StatusReason` in `describe-budget` output; ensure `billing:GetBillingViewData` is granted

错误	原因	修复方案
Cost Explorer出现 `ValidationException`	维度键错误（例如，使用 `CHARGE_TYPE` 而非 `RECORD_TYPE` ）	使用 `RECORD_TYPE` 进行费用类型筛选
使用筛选器后返回空结果	筛选值不完全匹配	先调用 `GetDimensionValues` 获取有效值
小时级数据出现 `AccessDeniedException`	未启用小时级粒度	在Cost Explorer偏好设置中启用
Compute Optimizer出现 `Account not registered`	未启用服务	运行 `update-enrollment-status --status Active`
us-east-1区域外调用Budgets API失败	Budgets需要us-east-1区域	设置 `--region us-east-1`
Cost Explorer使用GroupBy时 `Total` 为空	设计如此——分组时不包含总计	单独调用不使用GroupBy的接口，或通过脚本对分组结果求和
`list-billing-views` 出现 `AccessDeniedException`	缺少权限	用户需要 `billing:ListBillingViews` 权限
使用 `--billing-view-arn` 出现 `ValidationException`	API不支持账单视图，或ARN格式错误	查看上方的API支持表；ARN格式为 `arn:aws:billing::ACCOUNT_ID:billingview/VIEW_ID`
预算显示 `UNHEALTHY` 健康状态	账单视图权限被撤销或视图已删除	在 `describe-budget` 输出中查看 `HealthStatus.StatusReason` ；确保已授予 `billing:GetBillingViewData` 权限

Additional Resources

额外资源

AWS Cost Management User Guide: https://docs.aws.amazon.com/cost-management/
AWS Pricing Calculator: https://calculator.aws/
Compute Optimizer User Guide: https://docs.aws.amazon.com/compute-optimizer/
Well-Architected Cost Optimization Pillar: https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/

AWS成本管理用户指南：https://docs.aws.amazon.com/cost-management/
AWS定价计算器：https://calculator.aws/
Compute Optimizer用户指南：https://docs.aws.amazon.com/compute-optimizer/
架构完善框架成本优化支柱：https://docs.aws.amazon.com/wellarchitected/latest/cost-optimization-pillar/

aws-billing-and-cost-management

Original

Translation

Billing and Cost Management

账单与成本管理

Overview

概述

Usage

使用场景

Core Concepts

核心概念

Critical Rule: Always Check the Current Date

关键规则：始终检查当前日期

Critical Rule: Deterministic Calculations

关键规则：确定性计算

Decision Guide

决策指南

Common Tasks

常见任务

Analyze costs by service

按服务分析成本

Run a cost audit

执行成本审计

Get right-sizing recommendations

获取资源规格调整建议

Look up service pricing

查询服务定价

Billing Views

账单视图

Discover available billing views

发现可用的账单视图

Use a billing view with Cost Explorer

在Cost Explorer中使用账单视图

Create a budget scoped to a billing view

创建限定到账单视图的预算

API support for --billing-view-arn

支持--billing-view-arn的API

Troubleshooting

故障排除

Additional Resources

额外资源

API support for
`--billing-view-arn`

支持
`--billing-view-arn`
的API