AI agents call food_get_product 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 |
|---|---|---|---|
barcode | string | Yes |
Parameters from the server's own tool schema.
This tool queries an external database (Open Food Facts) to retrieve food product information based on a barcode identifier. It performs a lookup/fetch operation with no ability to modify, delete, or execute arbitrary operations. The retrieval of public food product data poses minimal security risk.
From the tool's definition Tool name 'food_get_product' and description 'Get a food product from Open Food Facts by barcode' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Get a food product from Open Food Facts by barcode. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
food_get_product accepts 1 parameter: barcode. Required: barcode. 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 food_get_product: 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.
food_get_product 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 food_get_product 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 food_get_product. 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.
food_get_product 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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