SELECT_FLIGHT_SEAT · Travel Agent MCP Server MCP

WHAT IT DOES

What SELECT_FLIGHT_SEAT does on Travel Agent MCP Server

AI agents use SELECT_FLIGHT_SEAT to commit financial operations through Travel Agent MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why SELECT_FLIGHT_SEAT needs a policy

The tool can trigger a financial charge against the user's stored payment method when selecting a priced seat. This makes it a Financial category tool. Severity is high because an AI agent could inadvertently select expensive seats and charge the user without explicit confirmation.

From the tool's definition 'If the seat has a price, this charges the stored payment method'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

SELECT_FLIGHT_SEAT Approval-gated

Any call to SELECT_FLIGHT_SEAT is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "SELECT_FLIGHT_SEAT": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

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PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Travel Agent MCP Server, so you can run agents against it safely.

FAQ

Questions about SELECT_FLIGHT_SEAT

What does the SELECT_FLIGHT_SEAT tool do? +

Select a seat on a booking. If the seat has a price, this charges the stored payment method — check. It is categorised as a Financial tool in the Travel Agent MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on SELECT_FLIGHT_SEAT? +

Register the Travel Agent MCP Server MCP server in PolicyLayer and add a rule for SELECT_FLIGHT_SEAT: 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 Travel Agent MCP Server. Nothing to install.

What risk level is SELECT_FLIGHT_SEAT? +

SELECT_FLIGHT_SEAT is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit SELECT_FLIGHT_SEAT? +

Yes. Add a rate_limit block to the SELECT_FLIGHT_SEAT 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.

How do I block SELECT_FLIGHT_SEAT completely? +

Set action: deny in the PolicyLayer policy for SELECT_FLIGHT_SEAT. 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.

What MCP server provides SELECT_FLIGHT_SEAT? +

SELECT_FLIGHT_SEAT is provided by the Travel Agent MCP Server MCP server (nxgnosis/travelagentmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.