Compare this month (or a recent period) to the same period last year. Use for:
AI agents call yoy_comparison to retrieve information from AdMob 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 historical ad revenue data for comparative reporting purposes. It queries existing metrics without creating, modifying, or deleting any data, and does not execute code or trigger external operations. This is a straightforward read operation with no side effects or blast radius if misused by an AI agent.
From the tool's definition Tool performs period-to-period comparison of AdMob metrics ("Compare this month... to the same period last year"). No modification, deletion, or execution of external operations described.
Attacks that exploit this kind of access
Compare this month (or a recent period) to the same period last year. Use for:. It is categorised as a Read tool in the AdMob MCP Server MCP Server, which means it retrieves data without modifying state.
Register the AdMob MCP Server MCP server in PolicyLayer and add a rule for yoy_comparison: 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 AdMob MCP Server. Nothing to install.
yoy_comparison 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 yoy_comparison 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 yoy_comparison. 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.
yoy_comparison is provided by the AdMob MCP Server MCP server (willhou/admob-mcp). 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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