Aggregate summary for a user: total_orders, total_quantity, and optional
AI agents call order_summary_for_user to retrieve information from Database 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 aggregates historical order data for reporting purposes. It performs a SELECT/aggregation query with no side effects, no state changes, and no destructive operations. The blast radius of misuse is minimal—an agent could only retrieve summary statistics about a user's orders, which poses no risk of data loss, unauthorized writes, or financial impact.
From the tool's definition Tool name 'order_summary_for_user' and description 'Aggregate summary for a user: total_orders, total_quantity' indicate retrieval and aggregation of existing data with no modification, creation, or deletion.
Attacks that exploit this kind of access
Aggregate summary for a user: total_orders, total_quantity, and optional. It is categorised as a Read tool in the Database MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Database MCP Server MCP server in PolicyLayer and add a rule for order_summary_for_user: 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 Database MCP Server. Nothing to install.
order_summary_for_user 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 order_summary_for_user 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 order_summary_for_user. 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.
order_summary_for_user is provided by the Database MCP Server MCP server (vrushil1/database-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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