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 -…