AI agents call yelp_get_reviews to retrieve information from UnClick without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
api_key | string | — | |
business_id | string | Yes |
Parameters from the server's own tool schema.
This tool queries and retrieves publicly available review information from Yelp. It has no side effects—it does not create, modify, delete, execute code, or move money. The blast radius of misuse is minimal; an agent could at worst retrieve reviews repeatedly or for many businesses, but this causes no harm to data integrity or system state.
From the tool's definition Tool name 'yelp_get_reviews' and description 'Get reviews for a Yelp business' indicate retrieval of existing public review data with no modification, creation, or deletion.
Risk signalsHandles credentials or secrets (api_key)
Attacks that exploit this kind of access
Get reviews for a Yelp business. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
yelp_get_reviews accepts 2 parameters: api_key, business_id. Required: business_id. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for yelp_get_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 UnClick. Nothing to install.
yelp_get_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 yelp_get_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 yelp_get_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.
yelp_get_reviews is provided by the UnClick MCP server (@unclick/mcp-server). 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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