Get holidays for a specific year
AI agents call get_holidays_by_year to retrieve information from OSU 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 based on a year parameter. It performs a simple data query with no side effects, no reversible modifications, no code execution, no data destruction, and no financial impact. It is a straightforward read operation accessing calendar/reference data from Ohio State University services.
From the tool's definition Tool name 'get_holidays_by_year' and description 'Get holidays for a specific year' indicate retrieval of holiday calendar data with no modification, deletion, or execution of external operations.
Attacks that exploit this kind of access
Get holidays for a specific year. It is categorised as a Read tool in the OSU MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OSU MCP Server MCP server in PolicyLayer and add a rule for get_holidays_by_year: 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 OSU MCP Server. Nothing to install.
get_holidays_by_year 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_by_year 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_by_year. 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_by_year is provided by the OSU MCP Server MCP server (sichengchen/ohio-state-mcp-server). 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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