查詢高鐵時刻表
AI agents call get_thsr_timetable to retrieve information from THSRC 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 timetable information from the Taiwan High Speed Rail system via the TDX API. It performs a pure read operation with no side effects—it queries and returns existing schedule data without creating, modifying, deleting, or executing anything. The blast radius of misuse is minimal: an AI agent querying timetables poses no operational, security, or financial risk.
From the tool's definition Tool name 'get_thsr_timetable' and description '查詢高鐵時刻表' (query high-speed rail timetable) indicate a data retrieval operation.
Attacks that exploit this kind of access
查詢高鐵時刻表. It is categorised as a Read tool in the THSRC MCP Server MCP Server, which means it retrieves data without modifying state.
Register the THSRC MCP Server MCP server in PolicyLayer and add a rule for get_thsr_timetable: 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 THSRC MCP Server. Nothing to install.
get_thsr_timetable 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 get_thsr_timetable 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 get_thsr_timetable. 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.
get_thsr_timetable is provided by the THSRC MCP Server MCP server (physictim/thsrc_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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