2つの期間を比較します。前週比、前月比、前年同期比などの分析が可能です。
AI agents call compare_periods 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.
This tool retrieves and analyzes Google Analytics 4 data to generate comparison reports between different time periods. It performs no modifications to data, executes no external operations, and has no destructive or financial implications. It falls squarely into the Read category as a data retrieval and querying tool.
From the tool's definition Tool named 'compare_periods' with description stating it compares two periods and enables analysis like week-over-week, month-over-month, and year-over-year comparisons.
Attacks that exploit this kind of access
2つの期間を比較します。前週比、前月比、前年同期比などの分析が可能です。. 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 compare_periods: 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.
compare_periods 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 compare_periods 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 compare_periods. 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.
compare_periods 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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