AI agents call square_customers 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 |
|---|---|---|---|
limit | number | — | |
cursor | string | — | |
sort_field | string | — | |
sort_order | string | — | |
access_token | string | Yes |
Parameters from the server's own tool schema.
The tool retrieves a list of customer records from Square's system. This is a read-only query operation that does not create, modify, delete, or execute any actions. The verb 'List' explicitly indicates data retrieval without persistence effects. Severity is low because customer list data access, while potentially sensitive, is typically read-only with no ability to alter financial transactions or customer data.
From the tool's definition Tool name 'square_customers' combined with description 'List Square customers' indicates a retrieval operation with no side effects.
Risk signalsHandles credentials or secrets (access_token)
Attacks that exploit this kind of access
List Square customers. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
square_customers accepts 5 parameters: limit, cursor, sort_field, sort_order, access_token. Required: access_token. 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 square_customers: 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.
square_customers 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 square_customers 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 square_customers. 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.
square_customers 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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