This record as markdown: /tools/io-github-portel-dev-ncp/create-product.md
What create_product does on Ncp
AI agents use create_product to create or update resources in Ncp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Ncp environment.
Why create_product is rated Medium
This tool creates new product entries in a Shopify store, which is a reversible write operation. It modifies the store's product catalog but does not delete data, execute arbitrary code, or move money directly. The severity is medium because incorrect product creation could impact inventory management and customer experience, but the action is reversible through deletion or editing.
From the tool's definition Tool name is 'create_product' and description states 'Create new product in Shopify store' — creates new data in an e-commerce system
Attacks that exploit this kind of access
The rule that runs create_product safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Ncp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_product, this is the rule to start with:
create_product 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.
The button opens the PolicyLayer dashboard: create your workspace, connect Ncp, apply this rule, and every create_product call is checked against it from then on.
Questions about create_product
Create new product in Shopify store. It is categorised as a Write tool in the Ncp MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Ncp MCP server in PolicyLayer and add a rule for create_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 Ncp. Nothing to install.
create_product 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 create_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 create_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.
create_product is provided by the Ncp MCP server (@portel/ncp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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