Find the next upcoming public holiday for a country.
AI agents call holidays_next to retrieve information from Mcp Everything without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries a reference database of public holidays for informational purposes only. It has no side effects—it does not create, modify, delete, or execute any operations. The action is a simple read operation similar to other informational tools on this server (e.g., country_info, books_search). Blast radius is minimal as misuse cannot affect system state or external services.
From the tool's definition The tool name 'holidays_next' and description 'Find the next upcoming public holiday for a country' indicate a lookup/query operation that retrieves static holiday data without modifying any state.
Attacks that exploit this kind of access
Find the next upcoming public holiday for a country. It is categorised as a Read tool in the Mcp Everything MCP Server, which means it retrieves data without modifying state.
Register the Mcp Everything MCP server in PolicyLayer and add a rule for holidays_next: 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 Mcp Everything. Nothing to install.
holidays_next 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 holidays_next 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 holidays_next. 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.
holidays_next is provided by the Mcp Everything MCP server (wellix260/mcp-everything). 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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