Fetches AWS cloud cost breakdown by service and region for a given time period. Use this to answer questions about overall spend, top spending services, or cost by region.
AI agents call get_cost_summary to retrieve information from Cloud FinOps Analyst MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and analyzes existing cost data from AWS without creating, modifying, deleting, or executing any changes to cloud resources or financial systems. It is purely informational, supporting cost analysis and reporting. While it operates in a financial domain, it does not move money, commit financial obligations, or trigger transactions—it only reads cost metrics.
From the tool's definition Tool name 'get_cost_summary' and description 'Fetches AWS cloud cost breakdown by service and region' indicates data retrieval with no modification, deletion, or financial transactions.
Attacks that exploit this kind of access
Fetches AWS cloud cost breakdown by service and region for a given time period. Use this to answer questions about overall spend, top spending services, or cost by region. It is categorised as a Read tool in the Cloud FinOps Analyst MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Cloud FinOps Analyst MCP Server MCP server in PolicyLayer and add a rule for get_cost_summary: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Cloud FinOps Analyst MCP Server. Nothing to install.
get_cost_summary is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_cost_summary rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for get_cost_summary. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
get_cost_summary is provided by the Cloud FinOps Analyst MCP Server MCP server (mihirkadam19/finops-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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