List all metafield definitions for products at the store level. Returns namespace, key, type, name, description, and validations via GraphQL.
AI agents call list_metafield_definitions to retrieve information from Kockatoos Shopify MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves metafield definition metadata from Shopify. It performs no write, delete, execute, or financial operations. The action is read-only enumeration of existing schema definitions, making it a straightforward Read category tool with low severity risk.
From the tool's definition Tool name contains 'list' and description states it 'Returns namespace, key, type, name, description, and validations' — pure data retrieval with no modification or side effects.
Attacks that exploit this kind of access
List all metafield definitions for products at the store level. Returns namespace, key, type, name, description, and validations via GraphQL. It is categorised as a Read tool in the Kockatoos Shopify MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Kockatoos Shopify MCP Server MCP server in PolicyLayer and add a rule for list_metafield_definitions: 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 Kockatoos Shopify MCP Server. Nothing to install.
list_metafield_definitions is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_metafield_definitions 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 list_metafield_definitions. 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.
list_metafield_definitions is provided by the Kockatoos Shopify MCP Server MCP server (untitled-developers/shopify-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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