List invoices with filtering and pagination (max 100 items per page)
AI agents call list_invoices to retrieve information from Upgates 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 queries invoice data with optional filtering and pagination, which are standard read operations. It has no side effects, cannot modify or delete data, and poses minimal risk if misused by an agent—the worst case would be exposure of invoice information the agent is already authorized to access. No destructive, financial commitment, or code execution capabilities are present.
From the tool's definition Tool is named 'list_invoices' and described as 'List invoices with filtering and pagination'. The action is purely retrieval with no modification, creation, or deletion of data.
Attacks that exploit this kind of access
List invoices with filtering and pagination (max 100 items per page). It is categorised as a Read tool in the Upgates MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Upgates MCP Server MCP server in PolicyLayer and add a rule for list_invoices: 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 Upgates MCP Server. Nothing to install.
list_invoices 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_invoices 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_invoices. 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_invoices is provided by the Upgates MCP Server MCP server (mcp-open/upgates-com-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.
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