Query AWS cost and usage for account 135709585800 over a time period. Supports grouping (e.g. by SERVICE, USAGE_TYPE, REGION, LINKED_ACCOUNT, or a cost allocation TAG) and Cost Explorer filter expressions. Start date is inclusive, end date is exclusive. This is the primary tool for spend analysis: monthly trends, per-service breakdowns, daily spikes, etc.

List available values for a Cost Explorer dimension in a time period — e.g. which services, regions, usage types, or linked accounts actually incurred cost. Use this to discover exact value strings before filtering in get_cost_and_usage.

Forecast future AWS spend for the account over a date range (must start today or later). Returns the mean forecast plus an 80% prediction interval.

List cost anomalies detected by AWS Cost Anomaly Detection in a date range, including root causes and impact. Returns an empty list if no anomaly monitors are configured.

List AWS Budgets configured for the account, with limits, actual spend and forecast against each budget.

List cost allocation tag values seen in billing data for a time period. Provide tag_key to list its values; omit it to list available tag keys. Use these keys with group_by type=TAG in get_cost_and_usage.

Get Savings Plans or Reserved Instance utilization and coverage for a time period. Returns an explanatory message if the account has no such commitments.