tiendanube_update_product_variant

WHAT IT DOES

What tiendanube_update_product_variant does on Tienda Nube MCP Server

AI agents use tiendanube_update_product_variant 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.

WHY IT NEEDS A POLICY

Why tiendanube_update_product_variant needs a policy

The tool creates or modifies product data reversibly. While it affects product variants (potentially impacting pricing, inventory, or descriptions), the changes are reversible—they can be edited again or undone. This places it squarely in the Write category rather than Destructive (which would be irreversible deletion) or Execute (which would run arbitrary code).

From the tool's definition Tool name and description both indicate updating product variant data: 'Update an existing variant for a product.' This modifies product variant information stored in the e-commerce platform.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

tiendanube_update_product_variant Rate-limited

tiendanube_update_product_variant stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "tiendanube_update_product_variant": {
      "limits": [
        {
          "counter": "tiendanube_update_product_variant_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Tienda Nube MCP Server, so you can run agents against it safely.

FAQ

Questions about tiendanube_update_product_variant

What does the tiendanube_update_product_variant tool do? +

Update an existing variant for a product. 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.

How do I enforce a policy on tiendanube_update_product_variant? +

Register the Tienda Nube MCP Server MCP server in PolicyLayer and add a rule for tiendanube_update_product_variant: 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.

What risk level is tiendanube_update_product_variant? +

tiendanube_update_product_variant is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit tiendanube_update_product_variant? +

Yes. Add a rate_limit block to the tiendanube_update_product_variant 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.

How do I block tiendanube_update_product_variant completely? +

Set action: deny in the PolicyLayer policy for tiendanube_update_product_variant. 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.

What MCP server provides tiendanube_update_product_variant? +

tiendanube_update_product_variant 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.