zernio_list_reviews
List customer reviews from connected accounts (e.g. Google Business Profile). Returns reviewer name, rating, review text, date, and review ID needed to reply.
This record as markdown: /tools/eyalm321-zernio-mcp/zernio-list-reviews.md
What zernio_list_reviews does on Zernio
AI agents call zernio_list_reviews to retrieve information from Zernio without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why zernio_list_reviews is rated Low
This tool queries and retrieves existing review data from connected social media accounts. It has no capability to modify, delete, or execute operations. The returned review ID is provided for context (to enable replies via other tools), but the list operation itself is purely read-only. Misuse would result in information disclosure only, with minimal blast radius.
From the tool's definition Tool name 'zernio_list_reviews' and description 'List customer reviews from connected accounts' — performs a retrieval/query operation with no side effects. Returns data (reviewer name, rating, review text, date, review ID) for reading purposes only.
Attacks that exploit this kind of access
The rule that runs zernio_list_reviews safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Zernio, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For zernio_list_reviews, this is the rule to start with:
zernio_list_reviews 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 Zernio, apply this rule, and every zernio_list_reviews call is checked against it from then on.
Questions about zernio_list_reviews
List customer reviews from connected accounts (e.g. Google Business Profile). Returns reviewer name, rating, review text, date, and review ID needed to reply. It is categorised as a Read tool in the Zernio MCP Server, which means it retrieves data without modifying state.
Register the Zernio MCP server in PolicyLayer and add a rule for zernio_list_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 Zernio. Nothing to install.
zernio_list_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 zernio_list_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 zernio_list_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.
zernio_list_reviews is provided by the Zernio MCP server (eyalm321/zernio-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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