本文へ移動
cccskills
無料GitHub で公開

aws-billing-and-cost-management

Analyze AWS costs, find savings, manage budgets, evaluate Savings Plans and Reserved Instances, right-size EC2/Lambda/RDS/EBS with Compute Optimizer, look up service pricing, query CUR with Athena, detect cost anomalies, scope costs to billing views, and monitor Free Tier usage. Triggers on: AWS bill, cost analysis, reduce spend, savings plan, reserved instance, right-size, budget alert, cost optimization, pricing, free tier, cost anomaly, CUR, cost audit, billing view, billing view ARN.

aws/agent-toolkit-for-aws
インストール方法を見る

含まれるファイル（16）

  • SKILL.md8.9 KB
  • references/budgets.md2.4 KB
  • references/cost-audit.md3.2 KB
  • references/cost-explorer.md7.3 KB
  • references/cost-optimization-hub.md7.2 KB
  • references/cur-athena.md7.0 KB
  • references/deterministic-calculations.md2.5 KB
  • references/ebs-optimization.md2.7 KB
  • references/ec2-rightsizing.md3.3 KB
  • references/free-tier.md1.6 KB
  • references/lambda-optimization.md2.2 KB
  • references/pricing-lookup.md3.8 KB
  • references/rds-optimization.md1.8 KB
  • references/reserved-instances.md2.3 KB
  • references/savings-plans.md3.3 KB
  • references/service-optimization.md3.0 KB

SKILL.md（原文）

インストールする前に、エージェントに与えられる指示の中身を確認できます。

Billing and Cost Management

Overview

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.

Usage

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

Core Concepts

  • 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.

Critical Rule: Always Check the Current Date

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.

Critical Rule: Deterministic Calculations

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.

Decision Guide

QuestionToolReference
What am I spending? Where are costs going up?Cost Explorerreferences/cost-explorer.md
How much does a service cost?Price List APIreferences/pricing-lookup.md
Where can I save money? (start here)Cost Optimization Hubreferences/cost-optimization-hub.md
Should I buy Savings Plans?CE SP Recommendationsreferences/savings-plans.md
Should I buy Reserved Instances?CE RI Recommendationsreferences/reserved-instances.md
Deep-dive on a specific EC2/Lambda/EBS/RDS rec?Compute Optimizerreferences/ec2-rightsizing.md, references/lambda-optimization.md, references/rds-optimization.md, references/ebs-optimization.md
How do I set up budget alerts?Budgetsreferences/budgets.md
What's causing a cost spike?Cost Anomaly Detectionreferences/cost-explorer.md
Am I within Free Tier?Free Tier APIreferences/free-tier.md
How do I reduce my bill?Cost Audit workflowreferences/cost-audit.md
How do I query detailed billing data?CUR 2.0 + Athenareferences/cur-athena.md
How do I optimize specific services?Per-service patternsreferences/service-optimization.md
How do I scope costs to a billing view?Billing ViewsSee Billing Views below

Common Tasks

Analyze costs by service

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.

Run a cost audit

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.

Get right-sizing recommendations

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.

Look up service pricing

Read references/pricing-lookup.md for service codes and attribute filters. Common trap: Price List API service codes differ from Cost Explorer service names.

Billing Views

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.

Discover available billing views

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

Requires billing:ListBillingViews permission.

Use a billing view with Cost Explorer

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

In the --budget JSON, include the BillingViewArn field:

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

Supports --billing-view-arnDoes NOT support it
ce get-cost-and-usagece get-reservation-coverage
ce get-cost-and-usage-with-resourcesce get-reservation-utilization
ce get-cost-forecastce get-savings-plans-coverage
ce get-usage-forecastce get-savings-plans-utilization
ce get-dimension-values
ce get-tags
ce get-cost-comparison-drivers
budgets create-budget (in budget JSON)

Troubleshooting

ErrorCauseFix
ValidationException on Cost ExplorerWrong dimension key (e.g., CHARGE_TYPE instead of RECORD_TYPE)Use RECORD_TYPE for charge type filtering
Empty results with filterFilter value doesn't match exactlyCall GetDimensionValues first to get valid values
AccessDeniedException on hourly dataHourly granularity not enabledEnable in Cost Explorer preferences
Account not registered on Compute OptimizerNot opted inRun update-enrollment-status --status Active
Budgets API fails outside us-east-1Budgets requires us-east-1Set --region us-east-1
Cost Explorer Total empty with GroupByBy design — totals excluded when groupingMake separate call without GroupBy, or sum grouped results using a script
AccessDeniedException on list-billing-viewsMissing permissionUser needs billing:ListBillingViews permissions
ValidationException with --billing-view-arnAPI doesn't support billing views, or malformed ARNCheck the API support table above; ARN format is arn:aws:billing::ACCOUNT_ID:billingview/VIEW_ID
Budget shows UNHEALTHY health statusBilling view access revoked or view deletedCheck HealthStatus.StatusReason in describe-budget output; ensure billing:GetBillingViewData is granted

Additional Resources

レビュー

まだレビューはありません。使ってみた感想をお寄せください。

ログインしてレビューを書く

同じリポジトリのスキル

概要と使いどころ

agent-advisor

無料

Entry point for AI-agent work on AWS: pick a runtime, plan a migration for existing workloads, and build an executable POC — one phased flow. Triggers on: which runtime for my agent, AgentCore vs ECS vs EKS vs Lambda, AgentCore vs Lambda MicroVMs, deploy an AI agent on AWS, agent architecture on AWS, I have an agent idea what do I build, move/migrate my agents to AWS, agent migration plan, add AgentCore services (memory, gateway, identity, policy, observability) to an agent already on AWS, Temporal on AWS (migrate/run Temporal workers on AWS, a service orchestrated by Temporal, Temporal Cloud vs self-hosted). Temporal Workflow code is never rewritten into Step Functions. Requires at least one agentic component — a purely non-agent system (plain services, batch jobs, HTTP endpoints, non-agent Temporal Activities) is out of scope, redirected to gcp-to-aws / heroku-to-aws / llm-to-bedrock. Not for: compute/data migration with no AI agent; pure LLM SDK rewrite (use llm-to-bedrock); per-model pricing.

日本語の概要は準備中です。原文の説明を表示しています。

aws/agent-toolkit-for-aws2,8552026年10月13日 更新

agents-build

無料

Use to extend an existing agent project with memory, app integration, VPC, multi-agent, migration, model, browser, code interpreter, payments, or resource removal. Triggers: "add memory", "remember across sessions", "call agent from app", "invoke agent from code", "agent auth", "streaming", "VPC", "VPC connectivity", "can't reach from VPC", "multi-agent", "A2A", "A2A auth", "orchestrator not delegating", "specialist not called", "migrate Bedrock Agent", "migration issue", "change model", "browser tool", "code interpreter", "delete agent", "tear down", "agentcore remove", "cross-account memory", "add payments capability to my agent", "wire payments plugin", "integrate x402 payments with the agent I'm building", "add MPP payments", "Machine Payments Protocol". External APIs via Gateway: use agents-connect. New project: use agents-get-started. CLI/dev-server errors: use agents-debug. Runtime x402/MPP payments: use agents-pay. Migration-specific Strands vs LangGraph routes here.

日本語の概要は準備中です。原文の説明を表示しています。

aws/agent-toolkit-for-aws2,8552026年10月13日 更新

agents-connect

無料

Use when connecting your agent to external APIs, tools, or services via Gateway, or restricting tool access with Cedar policies. Handles gateway setup, target types, outbound auth (OAuth, API key, IAM), credentials, and Cedar policy authoring. Triggers on: "connect to API", "add gateway", "connect to MCP server", "Lambda tools", "OpenAPI", "gateway target", "Cedar policy", "restrict tools", "policy engine", "gateway auth error", "store API key", "outbound credential", "env var API key", "API key None after deploy", "credential not available after deploy", "should this be a gateway target", "give my agent tools", "add tools to agent". Not for inbound auth (who can call your agent) — use agents-harden. Not for debugging agent behavior — use agents-debug. Not for VPC networking errors (agent can't reach APIs due to VPC) — use agents-build. Not for creating or hosting a new MCP server project — use agents-get-started.

日本語の概要は準備中です。原文の説明を表示しています。

aws/agent-toolkit-for-aws2,8552026年10月13日 更新

agents-debug

無料

Use when your agent or environment is broken — wrong answers, errors, timeouts, tool failures, or CLI issues. Reads traces and logs to diagnose root causes. Also checks prerequisites when the CLI itself isn't working. Triggers on: "agent not working", "wrong answer", "agent error", "tool call failing", "debug agent", "check logs", "read traces", "broken", "500 error", "424 error", "model access denied", "command not found", "stuck in DELETING", "maxVms exceeded", "cold start diagnosis", "cold start slow", "agentcore create error", "create failed", "exit code 7", "connection refused local dev". Not for deploy failures — use agents-deploy. Not for performance tuning without errors — use agents-optimize. Not for VPC configuration — use agents-build. Not for observability setup or missing logs — use agents-optimize.

日本語の概要は準備中です。原文の説明を表示しています。

aws/agent-toolkit-for-aws2,8552026年10月13日 更新

agents-deploy

無料

Use when deploying your agent to AWS, or when a deploy has failed. Handles pre-flight validation, CDK/IAM/quota error diagnosis, version management, rollback, and canary deployments. Triggers on: "deploy my agent", "agentcore deploy", "deploy failed", "CDK error", "rollback", "canary deploy", "pin version", "redeploy", "deploy stuck". Not for production hardening — use agents-harden. Not for adding capabilities before deploy — use agents-build or agents-connect. Not for VPC configuration errors — use agents-build.

日本語の概要は準備中です。原文の説明を表示しています。

aws/agent-toolkit-for-aws2,8552026年10月13日 更新

agents-get-started

無料

Use when a developer wants to create a new agent project or get started with AgentCore. Handles framework selection, project scaffolding, first deploy, and first invocation. Triggers on: "build an agent", "create an agent", "get started", "new project", "agentcore create", "which framework", "Strands vs LangGraph", "hello world agent", "first agent", "create MCP server", "host MCP server", "agentcore dev", "dev server", "what port", "local development". Not for adding capabilities to existing projects — use agents-build or agents-connect. Strands vs LangGraph in a migration context routes to agents-build, not here. Connecting to an existing MCP server routes to agents-connect, not here.

日本語の概要は準備中です。原文の説明を表示しています。

aws/agent-toolkit-for-aws2,8552026年10月13日 更新

aws のスキルをすべて見る

このスキルの問題を報告する