show_modelcalendar

THE RISK

Low Risk

Why show_modelcalendar needs a policy

This tool retrieves fiscal year calendar configuration from a model without creating, modifying, deleting, or executing operations. It is a straightforward data retrieval operation with no side effects, matching the Read category definition. Severity is low because accessing calendar metadata poses minimal risk even if misused by an agent.

From the tool's definition Tool description states 'Get model calendar' - a retrieval operation with no modification capability. The description explicitly notes that changes are made via a separate tool ('set_fiscalyear'), confirming this tool only queries calendar data.

Documented attack patterns abuse exactly the kind of access show_modelcalendar gives an agent:

POLICY

How to control show_modelcalendar

PolicyLayer is an MCP gateway — it sits between your AI agents and Anaplan MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for show_modelcalendar:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "show_modelcalendar": {}
  }
}

show_modelcalendar is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

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EXPLORE

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Go deeper

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FAQ

Questions about show_modelcalendar

What does the show_modelcalendar tool do? +

Get model calendar including fiscal year settings. Use set_fiscalyear to change the fiscal year. It is categorised as a Read tool in the Anaplan MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on show_modelcalendar? +

Register the Anaplan MCP server in PolicyLayer and add a rule for show_modelcalendar: 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 Anaplan MCP. Nothing to install.

What risk level is show_modelcalendar? +

show_modelcalendar is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit show_modelcalendar? +

Yes. Add a rate_limit block to the show_modelcalendar 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.

How do I block show_modelcalendar completely? +

Set action: deny in the PolicyLayer policy for show_modelcalendar. 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.

What MCP server provides show_modelcalendar? +

show_modelcalendar is provided by the Anaplan MCP server (larasrinath/anaplan-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Anaplan MCP tool call.

Start from Anaplan MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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