AI agents call list_resource_backup_configs to retrieve information from Storage without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries backup configuration metadata without altering or deleting any resources. It has no side effects beyond data retrieval. Classification as Read is appropriate, with low severity because the blast radius of misuse is minimal — an agent listing backup configs cannot cause data loss, financial harm, or system damage.
From the tool's definition Tool name includes 'list' and description states 'Lists all resource backup configs' — a retrieval operation with no modification or deletion. Returns data about existing backup configurations.
Attacks that exploit this kind of access
Lists all resource backup configs in a given project and location. It is categorised as a Read tool in the Storage MCP Server, which means it retrieves data without modifying state.
Register the Storage MCP server in PolicyLayer and add a rule for list_resource_backup_configs: 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 Storage. Nothing to install.
list_resource_backup_configs 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_resource_backup_configs 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_resource_backup_configs. 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_resource_backup_configs is provided by the Storage MCP server (@google-cloud/storage-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.