Find the best and worst performing days in a period. Use for:
AI agents call best_worst_days 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 AdMob performance metrics to identify temporal patterns. It has no capability to modify data, delete records, execute code, or trigger financial transactions. The read-only nature of performance analytics on historical data places it squarely in the Read category with low severity, as misuse would at worst provide misleading insights but cannot cause material harm to systems or data.
From the tool's definition The tool description states it is used to "Find the best and worst performing days in a period" — this is a retrieval and analysis operation that queries historical ad revenue performance data without modifying, deleting, or executing external operations.
Attacks that exploit this kind of access
Find the best and worst performing days in a period. 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 best_worst_days: 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.
best_worst_days 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 best_worst_days 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 best_worst_days. 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.
best_worst_days 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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