list-billing-group-cost-reports
AI agents call list-billing-group-cost-reports to retrieve information from Awslabs Valkey without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The 'list-' prefix strongly suggests data retrieval without modification. Despite the empty description reducing confidence slightly, the verb 'list' combined with 'cost-reports' indicates this tool queries or enumerates existing billing data without side effects. This is a Read operation with low severity since it only accesses financial reporting information without modifying systems or moving funds.
From the tool's definition Tool name 'list-billing-group-cost-reports' indicates retrieval of billing/cost report data with the 'list' verb, which is a read operation.
Attacks that exploit this kind of access
list-billing-group-cost-reports. It is categorised as a Read tool in the Awslabs Valkey MCP Server, which means it retrieves data without modifying state.
Register the Awslabs Valkey MCP server in PolicyLayer and add a rule for list-billing-group-cost-reports: 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 Awslabs Valkey. Nothing to install.
list-billing-group-cost-reports 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 list-billing-group-cost-reports 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 list-billing-group-cost-reports. 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.
list-billing-group-cost-reports is provided by the Awslabs Valkey MCP server (awslabs.valkey-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.