book_slot
AI agents use book_slot to commit financial operations through Lastminutedeals Api — usually the final step of a payment, billing, or trading workflow. A call moves real money.
The server context explicitly involves booking tours/activities and creating Stripe checkout sessions (payment processing). A 'book_slot' tool on such a server almost certainly initiates or completes a financial booking/purchase. Even with an empty description, the combination of the tool name and server context strongly implies a financial commitment.
From the tool's definition Tool name 'book_slot' on a server described as handling 'last-minute tour and activity booking' with 'create Stripe checkout sessions' — booking a slot implies a financial transaction commitment.
Attacks that exploit this kind of access
book_slot. It is categorised as a Financial tool in the Lastminutedeals Api MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Lastminutedeals Api MCP server in PolicyLayer and add a rule for book_slot: 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 Lastminutedeals Api. Nothing to install.
book_slot is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the book_slot 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 book_slot. 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.
book_slot is provided by the Lastminutedeals Api MCP server (johnanleitner1-Coder/lastminutedeals-api). 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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