get_calendar

THE RISK

Low Risk

Why get_calendar needs a policy

This tool retrieves calendar data without creating, modifying, deleting, or executing any operations. It is a straightforward read operation that queries existing calendar information. The blast radius of misuse is minimal—an AI agent could only access calendar data it shouldn't see, not cause damage or perform unwanted actions.

From the tool's definition Tool name 'get_calendar' and description 'Get a specific calendar' indicate a retrieval operation with no modification or side effects.

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

POLICY

How to control get_calendar

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

policy.json

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

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

Create a free account and register GoHighLevel MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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All 64 GoHighLevel MCP Server tools →

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Go deeper

Roll out MCP under one policy → Per-person scoped tokens, one central policy, and full audit across every server your team connects.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about get_calendar

What does the get_calendar tool do? +

Get a specific calendar. It is categorised as a Read tool in the GoHighLevel MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_calendar? +

Register the GoHighLevel MCP Server MCP server in PolicyLayer and add a rule for get_calendar: 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 GoHighLevel MCP Server. Nothing to install.

What risk level is get_calendar? +

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

Can I rate-limit get_calendar? +

Yes. Add a rate_limit block to the get_calendar 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 get_calendar completely? +

Set action: deny in the PolicyLayer policy for get_calendar. 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 get_calendar? +

get_calendar is provided by the GoHighLevel MCP Server MCP server (basicmachines-co/open-ghl-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every GoHighLevel MCP Server tool call.

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

CHECK YOUR STACK →