List shopping carts (max 100 items per page)
AI agents call list_carts 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 shopping cart data without performing any side effects. It does not create, modify, delete, or execute operations. Listing carts is a non-destructive information retrieval operation typical of Read category tools. Low severity because cart listing poses minimal risk—it exposes shopping cart data but does not enable unauthorized transactions or data manipulation.
From the tool's definition Tool name 'list_carts' and description 'List shopping carts' indicates retrieval of cart data with no modification or deletion capability. The pagination note ('max 100 items per page') further suggests a read-only query operation.
Attacks that exploit this kind of access
List shopping carts (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_carts: 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_carts 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_carts 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_carts. 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_carts 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.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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