apple_ads_impression_share
COMPETITIVE INTELLIGENCE: what fraction of the available impressions your app actually captures for each search term, by market and day or week. This is the report that finds where you are being out-bid or out-budgeted — a LOW share on a term with high search popularity means budget, bid or eligi...
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What apple_ads_impression_share does on Hermoso
AI agents call apple_ads_impression_share to retrieve information from Hermoso without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why apple_ads_impression_share is rated Low
Even though apple_ads_impression_share only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
The rule that runs apple_ads_impression_share safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Hermoso, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For apple_ads_impression_share, this is the rule to start with:
apple_ads_impression_share is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Hermoso, apply this rule, and every apple_ads_impression_share call is checked against it from then on.
Questions about apple_ads_impression_share
COMPETITIVE INTELLIGENCE: what fraction of the available impressions your app actually captures for each search term, by market and day or week. This is the report that finds where you are being out-bid or out-budgeted — a LOW share on a term with high search popularity means budget, bid or eligibility is capping your reach on a term people are really searching, which is the most actionable row Apple publishes. READ THE ENCODING BEFORE QUOTING A NUMBER: lowImpressionShare and highImpressionShare are TIERED, not continuous. Below 91% the two are equal and read as a single percentage; a row where they diverge to 0.91 and 1.0 means. It is categorised as a Read tool in the Hermoso MCP Server, which means it retrieves data without modifying state.
Register the Hermoso MCP server in PolicyLayer and add a rule for apple_ads_impression_share: 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 Hermoso. Nothing to install.
apple_ads_impression_share 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 apple_ads_impression_share 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 apple_ads_impression_share. 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.
apple_ads_impression_share is provided by the Hermoso MCP server (https://app.hermoso.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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