Get TWSE market holiday schedule and trading days
AI agents call getHolidaySchedule to retrieve information from TWSE 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 and returns market holiday schedule data. It performs a read-only query with no capability to modify, delete, or execute operations. The blast radius of misuse is minimal—an agent could only request inappropriate date ranges but cannot cause harm to data or systems. Classified as Read with low severity.
From the tool's definition Tool name 'getHolidaySchedule' and description 'Get TWSE market holiday schedule and trading days' indicate a query operation that retrieves calendar information with no side effects.
Attacks that exploit this kind of access
Get TWSE market holiday schedule and trading days. It is categorised as a Read tool in the TWSE MCP Server MCP Server, which means it retrieves data without modifying state.
Register the TWSE MCP Server MCP server in PolicyLayer and add a rule for getHolidaySchedule: 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 TWSE MCP Server. Nothing to install.
getHolidaySchedule 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 getHolidaySchedule 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 getHolidaySchedule. 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.
getHolidaySchedule is provided by the TWSE MCP Server MCP server (pyang2045/twsemcp). 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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