This record as markdown: /tools/uvu-store-shopify-graphql-mcp/delete-custom-pixel.md
What delete_custom_pixel does on Shopify Graphql
AI agents call delete_custom_pixel to permanently remove resources in Shopify Graphql, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why delete_custom_pixel is rated Critical
This tool permanently removes a custom pixel from a Shopify store, which is an irreversible action. While the blast radius is limited to a single pixel configuration (not store-wide data), the destructive nature and inability to undo the action places it in the Destructive category.
From the tool's definition Tool name 'delete_custom_pixel' and description 'Delete a custom pixel' explicitly indicate irreversible deletion of data. The verb 'delete' is a destructive operation that cannot be undone.
Attacks that exploit this kind of access
The rule that runs delete_custom_pixel safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Shopify Graphql, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For delete_custom_pixel, this is the rule to start with:
delete_custom_pixel is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Shopify Graphql, apply this rule, and every delete_custom_pixel call is checked against it from then on.
Questions about delete_custom_pixel
Delete a custom pixel. It is categorised as a Destructive tool in the Shopify Graphql MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Shopify Graphql MCP server in PolicyLayer and add a rule for delete_custom_pixel: 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 Shopify Graphql. Nothing to install.
delete_custom_pixel is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the delete_custom_pixel 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 delete_custom_pixel. 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.
delete_custom_pixel is provided by the Shopify Graphql MCP server (uvu-store/shopify-graphql-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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