利用可能なディメンションとメトリクスの一覧を取得します。run_reportで使える項目を確認できます。
AI agents call get_metadata to retrieve information from GA4 MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
get_metadata retrieves informational data about available GA4 report parameters—dimensions and metrics—with no side effects, data modification, or external operations triggered. It is purely a Read operation for introspection and configuration discovery prior to running actual reports.
From the tool's definition Tool description states it retrieves ('一覧を取得します' = 'retrieves a list') available dimensions and metrics, with no modification or execution capability. This is a metadata/schema query operation.
Attacks that exploit this kind of access
利用可能なディメンションとメトリクスの一覧を取得します。run_reportで使える項目を確認できます。. It is categorised as a Read tool in the GA4 MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GA4 MCP Server MCP server in PolicyLayer and add a rule for get_metadata: 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 GA4 MCP Server. Nothing to install.
get_metadata 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 get_metadata 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 get_metadata. 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.
get_metadata is provided by the GA4 MCP Server MCP server (shin-sibainu/ga4-mcp-server). 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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