filter_hotels_by_price
AI agents call filter_hotels_by_price to retrieve information from MCP Travel Planner without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool filters hotel listings by price—a retrieval operation with no side effects. It does not create, modify, delete, execute code, or move money. The 'filter' prefix consistently appears across all sibling tools which are clearly read operations.
From the tool's definition Tool name 'filter_hotels_by_price' indicates a filtering/querying operation on hotel data. The sibling tools on this server are all read-only operations (filter, compare, calculate, convert, batch operations on travel data).
Attacks that exploit this kind of access
filter_hotels_by_price. It is categorised as a Read tool in the MCP Travel Planner MCP Server, which means it retrieves data without modifying state.
Register the MCP Travel Planner MCP server in PolicyLayer and add a rule for filter_hotels_by_price: 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 Travel Planner. Nothing to install.
filter_hotels_by_price 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 filter_hotels_by_price 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 filter_hotels_by_price. 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.
filter_hotels_by_price is provided by the MCP Travel Planner MCP server (leonavevor/mcp_travelassistant). 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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