AI agents call get_holidays_in_range to retrieve information from Taiwan Holiday 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 holiday information for a date range without modifying, deleting, or executing any operations. It is a straightforward read query against a Taiwan holiday database. No side effects, data modifications, code execution, or financial implications are possible. The low severity reflects minimal risk even if invoked by an AI agent with arbitrary date parameters.
From the tool's definition Tool name 'get_holidays_in_range' and description '獲取指定日期範圍內的所有台灣假期' (Get all Taiwan holidays in the specified date range) indicate a retrieval operation.
Documented attack patterns abuse exactly the kind of access get_holidays_in_range gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Taiwan Holiday MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_holidays_in_range:
{
"version": "1",
"default": "deny",
"tools": {
"get_holidays_in_range": {}
}
}get_holidays_in_range is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
獲取指定日期範圍內的所有台灣假期. It is categorised as a Read tool in the Taiwan Holiday MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Taiwan Holiday MCP Server MCP server in PolicyLayer and add a rule for get_holidays_in_range: 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 Taiwan Holiday MCP Server. Nothing to install.
get_holidays_in_range 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_holidays_in_range 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_holidays_in_range. 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_holidays_in_range is provided by the Taiwan Holiday MCP Server MCP server (lis186/taiwan-holiday-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Taiwan Holiday 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.
3 Taiwan Holiday MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.