View all items currently in your cart with customizations, quantities, and pricing. Also shows the selected pickup store.
AI agents call view_cart to retrieve information from Mcp Starbucks without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool only retrieves and displays cart information to the user. It does not create, modify, delete, or execute any actions. Even in the context of a Starbucks ordering system with financial implications, viewing a cart is a read-only operation with no side effects. The blast radius of misuse is minimal — an agent could only see what's in a cart, not place orders, charge payments, or delete data.
From the tool's definition Tool name is 'view_cart' and description states it 'View all items currently in your cart' — a retrieval operation with no modification, deletion, or execution of external actions.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
View all items currently in your cart with customizations, quantities, and pricing. Also shows the selected pickup store. It is categorised as a Read tool in the Mcp Starbucks MCP Server, which means it retrieves data without modifying state.
Register the Mcp Starbucks MCP server in PolicyLayer and add a rule for view_cart: 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 Mcp Starbucks. Nothing to install.
view_cart 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 view_cart 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 view_cart. 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.
view_cart is provided by the Mcp Starbucks MCP server (markswendsen-code/mcp-starbucks). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
view_cart is one line of Mcp Starbucks's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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