UPDATE ORDER CUSTOM FIELDS - Replace or set custom fields for an order.
AI agents use tiendanube_update_order_custom_fields to create or update resources in Tienda Nube MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Tienda Nube MCP Server environment.
This tool modifies existing order data (custom fields) in a reversible manner. It is a Write operation because it updates data without deleting or destroying it. The severity is high because modifying order records could affect order fulfillment, tracking, customer communications, or financial reconciliation if custom fields are used for critical business logic or payment metadata.
From the tool's definition UPDATE ORDER CUSTOM FIELDS - Replace or set custom fields for an order.
Attacks that exploit this kind of access
UPDATE ORDER CUSTOM FIELDS - Replace or set custom fields for an order. It is categorised as a Write tool in the Tienda Nube MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Tienda Nube MCP Server MCP server in PolicyLayer and add a rule for tiendanube_update_order_custom_fields: 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_update_order_custom_fields is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the tiendanube_update_order_custom_fields 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_update_order_custom_fields. 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_update_order_custom_fields 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.
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