Show mediation ad source performance over time to catch declining demand partners. Use for:
AI agents call ad_source_trend 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 historical performance data from AdMob for analysis purposes. It allows users to view trends in ad source performance but does not create, modify, delete, or execute any operations. The most severe action possible is reading and analyzing existing data, which carries minimal risk if misused by an AI agent - it cannot damage data, trigger financial transactions, or execute arbitrary code.
From the tool's definition Tool description indicates it 'Show[s] mediation ad source performance over time' - a retrieval and analysis operation with no modification, deletion, or execution capabilities.
Attacks that exploit this kind of access
Show mediation ad source performance over time to catch declining demand partners. 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 ad_source_trend: 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.
ad_source_trend 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 ad_source_trend 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 ad_source_trend. 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.
ad_source_trend 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.
ad_source_trend is one line of AdMob MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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