Update an existing delivery customization rule
AI agents use update_delivery_customization to create or update resources in Shopify Graphql — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Shopify Graphql environment.
This tool modifies delivery customization rules (e.g., shipping methods, rates, conditions) that affect store operations and customer experience. While reversible (Write rather than Destructive), it has high severity because incorrect delivery rule modifications could disrupt order fulfillment, affect shipping calculations, and impact customer orders across the store.
From the tool's definition Tool name 'update_delivery_customization' and description 'Update an existing delivery customization rule' indicate modification of existing configuration data. The Shopify Admin GraphQL API context confirms this is a reversible data modification operation.
Attacks that exploit this kind of access
Update an existing delivery customization rule. It is categorised as a Write tool in the Shopify Graphql MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Shopify Graphql MCP server in PolicyLayer and add a rule for update_delivery_customization: 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.
update_delivery_customization 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 update_delivery_customization 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 update_delivery_customization. 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.
update_delivery_customization 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.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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