ga_send_event · MCP Google Analytics Server MCP

WHAT IT DOES

What ga_send_event does on MCP Google Analytics Server

AI agents use ga_send_event to create or update resources in MCP Google Analytics Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP Google Analytics Server environment.

WHY IT NEEDS A POLICY

Why ga_send_event needs a policy

This tool writes custom events to Google Analytics, creating new data records that alter analytics reports and metrics. While the action is reversible (events can be deleted from GA), it modifies the state of the analytics system and could be misused to inject false events, inflate metrics, or distort analytics reports.

From the tool's definition Tool description states 'Send a custom event to Google Analytics via Measurement Protocol' - this action creates/modifies data in Google Analytics by adding new event records.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ga_send_event Rate-limited

ga_send_event stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "ga_send_event": {
      "limits": [
        {
          "counter": "ga_send_event_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches MCP Google Analytics Server, so you can run agents against it safely.

FAQ

Questions about ga_send_event

What does the ga_send_event tool do? +

Send a custom event to Google Analytics via Measurement Protocol. Use this for tracking custom user actions, conversions, or any GA4 event. Events are processed asynchronously and appear in reports within minutes. Common events: click, form_submit, video_play, file_download, custom_conversion. It is categorised as a Write tool in the MCP Google Analytics Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ga_send_event? +

Register the MCP Google Analytics Server MCP server in PolicyLayer and add a rule for ga_send_event: 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 Google Analytics Server. Nothing to install.

What risk level is ga_send_event? +

ga_send_event is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit ga_send_event? +

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

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

ga_send_event is provided by the MCP Google Analytics Server MCP server (leosepulveda/mcp-google-analytics). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.