This record as markdown: /tools/aws/compute-performances-and-costs.md
What compute_performances_and_costs does on AWS
AI agents call compute_performances_and_costs to retrieve information from AWS without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why compute_performances_and_costs is rated Low
The tool name implies computation and retrieval of performance and cost data, which aligns with Read category (queries data, no side effects). However, confidence is moderate (0.6) because the description is empty, leaving some ambiguity about whether this performs simple retrieval or triggers complex backend calculations.
From the tool's definition Tool name 'compute_performances_and_costs' suggests querying or calculating metrics; no verbs indicating modification (create, update, delete) or execution of arbitrary operations.
Attacks that exploit this kind of access
The rule that runs compute_performances_and_costs safely
PolicyLayer is an MCP gateway: it sits between your AI agents and AWS, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For compute_performances_and_costs, this is the rule to start with:
compute_performances_and_costs is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect AWS, apply this rule, and every compute_performances_and_costs call is checked against it from then on.
Questions about compute_performances_and_costs
compute_performances_and_costs is a read tool on the AWS MCP server. It is categorised as a Read tool in the AWS MCP Server, which means it retrieves data without modifying state.
Register the AWS MCP server in PolicyLayer and add a rule for compute_performances_and_costs: 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 AWS. Nothing to install.
compute_performances_and_costs 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 compute_performances_and_costs 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 compute_performances_and_costs. 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.
compute_performances_and_costs is provided by the AWS MCP server (@awslabs/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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