Search for train stations by name. Returns station IDs, slugs, and types.
AI agents call tool_search_stations to retrieve information from Koleo MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a query operation against publicly available train station information and returns metadata without modifying, deleting, or executing external operations. It is purely informational and read-only, placing it in the Read category with low severity since misuse would only result in accessing public timetable reference data.
From the tool's definition Tool description states it 'Search[es] for train stations by name. Returns station IDs, slugs, and types.' The verb 'search' and the read-only nature of returning publicly available station metadata indicates data retrieval with no side effects.
Documented attack patterns abuse exactly the kind of access tool_search_stations gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Koleo MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for tool_search_stations:
{
"version": "1",
"default": "deny",
"tools": {
"tool_search_stations": {}
}
}tool_search_stations is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Search for train stations by name. Returns station IDs, slugs, and types. It is categorised as a Read tool in the Koleo MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Koleo MCP Server MCP server in PolicyLayer and add a rule for tool_search_stations: 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 Koleo MCP Server. Nothing to install.
tool_search_stations 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 tool_search_stations 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 tool_search_stations. 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.
tool_search_stations is provided by the Koleo MCP Server MCP server (mbratkowski/koleo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Koleo MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
14 Koleo MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.