Book a last-minute slot for a customer. Two modes: (1) APPROVAL MODE (default): creates a Stripe Checkout Session and returns a checkout_url — you MUST share this URL with the customer immediately so they can complete payment. Booking is confirmed with the supplier after payment. (2) AUTONOMOUS M...
Part of the Last_Minute_Deals_HQ server.
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AI agents call book_slot to retrieve information from Last_Minute_Deals_HQ without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though book_slot only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"book_slot": {}
}
}See the full Last_Minute_Deals_HQ policy for all 6 tools.
These attack patterns abuse exactly the kind of access book_slot gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Book a last-minute slot for a customer. Two modes: (1) APPROVAL MODE (default): creates a Stripe Checkout Session and returns a checkout_url — you MUST share this URL with the customer immediately so they can complete payment. Booking is confirmed with the supplier after payment. (2) AUTONOMOUS MODE: if you supply a wallet_id (pre-funded agent wallet) and execution_mode='autonomous', the booking completes immediately and returns a confirmation_number directly — no checkout step, no human action required. Use autonomous mode when your application manages payment on behalf of the customer. Bookings are real and go directly to the supplier.. It is categorised as a Read tool in the Last_Minute_Deals_HQ MCP Server, which means it retrieves data without modifying state.
Register the Last_Minute_Deals_HQ 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 Last_Minute_Deals_HQ. Nothing to install.
book_slot 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 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 Last_Minute_Deals_HQ MCP server (johnanleitner1/Last_Minute_Deals_HQ). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 6 Last_Minute_Deals_HQ tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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