AI agents call list_google_business_reviews to retrieve information from Posterly without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays review data from Google Business Profiles. The supported filters (rating, unanswered-only) allow querying subsets of data, but the core operation is read-only. No data is created, modified, deleted, or used to trigger external actions.
From the tool's definition Tool name 'list_google_business_reviews' and description 'List Google Business Profile reviews' — the verb 'list' and action of retrieving/querying existing review data with filter support (rating, unanswered-only) indicate data retrieval with no modification…
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
List Google Business Profile reviews for one location/account or every accessible GBP location. Supports rating and unanswered-only filters. It is categorised as a Read tool in the Posterly MCP Server, which means it retrieves data without modifying state.
Register the Posterly MCP server in PolicyLayer and add a rule for list_google_business_reviews: 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 Posterly. Nothing to install.
list_google_business_reviews 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 list_google_business_reviews 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 list_google_business_reviews. 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.
list_google_business_reviews is provided by the Posterly MCP server (posterly-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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