Get details of a specific product variant custom field by ID
AI agents call tiendanube_get_product_variant_custom_field to retrieve information from Tienda Nube MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves data about a product variant custom field. It performs a read-only query operation without creating, modifying, deleting, or executing any code. The blast radius if misused is minimal — an attacker could at worst enumerate custom field metadata, which is informational only.
From the tool's definition Tool name contains 'get' and description states 'Get details of a specific product variant custom field by ID' — purely retrieval operation with no modification or side effects.
Attacks that exploit this kind of access
Get details of a specific product variant custom field by ID. It is categorised as a Read tool in the Tienda Nube MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Tienda Nube MCP Server MCP server in PolicyLayer and add a rule for tiendanube_get_product_variant_custom_field: 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 Tienda Nube MCP Server. Nothing to install.
tiendanube_get_product_variant_custom_field 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 tiendanube_get_product_variant_custom_field 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 tiendanube_get_product_variant_custom_field. 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.
tiendanube_get_product_variant_custom_field is provided by the Tienda Nube MCP Server MCP server (pedrohsguimaraes/nuvem-shop-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.
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