ga4_admin_api_update_annotation

WHAT IT DOES

What ga4_admin_api_update_annotation does on Google Analytics 4 Admin MCP

AI agents use ga4_admin_api_update_annotation to create or update resources in Google Analytics 4 Admin MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Google Analytics 4 Admin MCP environment.

WHY IT NEEDS A POLICY

Why ga4_admin_api_update_annotation needs a policy

Updating annotations is a reversible data modification operation. Annotations in GA4 are metadata markers used to tag events or time periods with context (e.g., 'campaign launch', 'server outage').

From the tool's definition Tool name contains 'update' and description states 'Update an existing annotation in a Google Analytics 4 property' — this modifies existing data (annotations) reversibly without deleting or destroying data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

ga4_admin_api_update_annotation Rate-limited

ga4_admin_api_update_annotation 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": {
    "ga4_admin_api_update_annotation": {
      "limits": [
        {
          "counter": "ga4_admin_api_update_annotation_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 Google Analytics 4 Admin MCP, so you can run agents against it safely.

FAQ

Questions about ga4_admin_api_update_annotation

What does the ga4_admin_api_update_annotation tool do? +

Update an existing annotation in a Google Analytics 4 property. It is categorised as a Write tool in the Google Analytics 4 Admin MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on ga4_admin_api_update_annotation? +

Register the Google Analytics 4 Admin MCP server in PolicyLayer and add a rule for ga4_admin_api_update_annotation: 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 Google Analytics 4 Admin MCP. Nothing to install.

What risk level is ga4_admin_api_update_annotation? +

ga4_admin_api_update_annotation is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit ga4_admin_api_update_annotation? +

Yes. Add a rate_limit block to the ga4_admin_api_update_annotation 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 ga4_admin_api_update_annotation completely? +

Set action: deny in the PolicyLayer policy for ga4_admin_api_update_annotation. 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 ga4_admin_api_update_annotation? +

ga4_admin_api_update_annotation is provided by the Google Analytics 4 Admin MCP server (jmchat/mcp-ga4-admin-ts). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.