create_price_rule
Create a new price rule for automatic discounts
This record as markdown: /tools/uvu-store-shopify-graphql-mcp/create-price-rule.md
What create_price_rule does on Shopify Graphql
AI agents use create_price_rule 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.
Why create_price_rule is rated Medium
This tool creates a new price rule (discount configuration) which modifies store data reversibly. While price rules affect financial transactions (discounts), the tool itself does not move money or commit financial obligations—it merely configures discount logic. The action is reversible (price rules can be deleted or modified).
From the tool's definition Tool name 'create_price_rule' and description 'Create a new price rule for automatic discounts' indicate creation of a new discount configuration object in Shopify.
Attacks that exploit this kind of access
The rule that runs create_price_rule 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 create_price_rule, this is the rule to start with:
create_price_rule 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 Shopify Graphql, apply this rule, and every create_price_rule call is checked against it from then on.
Questions about create_price_rule
Create a new price rule for automatic discounts. 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 create_price_rule: 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.
create_price_rule 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_price_rule 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_price_rule. 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_price_rule 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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