Search for train stations and cities in the Czech Railways network. Use this to find station codes for connection searches.
AI agents call search_locations to retrieve information from Czech Railways (České dráhy) MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves reference data (station codes and location information) from the Czech Railways network for use in subsequent searches. It has no side effects, does not modify data, does not execute code or commands, and does not involve financial transactions. The blast radius of misuse is minimal—an agent could only retrieve publicly available station information. This clearly falls under the Read category.
From the tool's definition Tool name is 'search_locations' and description states it 'Search[es] for train stations and cities' to 'find station codes for connection searches.' This is a pure query operation with no modification, deletion, or execution of external operations.
Attacks that exploit this kind of access
Search for train stations and cities in the Czech Railways network. Use this to find station codes for connection searches. It is categorised as a Read tool in the Czech Railways (České dráhy) MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Czech Railways (České dráhy) MCP Server MCP server in PolicyLayer and add a rule for search_locations: 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 Czech Railways (České dráhy) MCP Server. Nothing to install.
search_locations 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 search_locations 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 search_locations. 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.
search_locations is provided by the Czech Railways (České dráhy) MCP Server MCP server (janprovaznik/cd-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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