Search for bus stops by name or find stops near a location using coordinates.
AI agents call search_bus_stops to retrieve information from TFL MCP Server for Poke without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and queries public transport data (bus stop locations) without side effects. It performs a search/lookup, which is a read-only operation typical of TFL's public information API. No data is created, modified, deleted, or executed; it simply returns matching bus stop information.
From the tool's definition Tool name 'search_bus_stops' and description 'Search for bus stops by name or find stops near a location' indicate a query/lookup operation with no data modification or execution.
Attacks that exploit this kind of access
Search for bus stops by name or find stops near a location using coordinates. It is categorised as a Read tool in the TFL MCP Server for Poke MCP Server, which means it retrieves data without modifying state.
Register the TFL MCP Server for Poke MCP server in PolicyLayer and add a rule for search_bus_stops: 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 TFL MCP Server for Poke. Nothing to install.
search_bus_stops 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_bus_stops 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_bus_stops. 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_bus_stops is provided by the TFL MCP Server for Poke MCP server (vjagiasi/tfl-mcp). 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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