Lists pre-built semantic typography classes (t-display, t-h1, t-body, t-price, etc.) ready to apply via className.
AI agents call list_semantic_classes to retrieve information from Grocers Design without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns a list of pre-built design system classes. It performs no data modification, deletion, or external execution. The action is purely informational—returning metadata about available CSS classes for UI styling. This is consistent with other Read-category tools on the server like 'list_components' and 'list_tokens'. No side effects or destructive potential exists.
From the tool's definition Tool name 'list_semantic_classes' and description 'Lists pre-built semantic typography classes' indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
Lists pre-built semantic typography classes (t-display, t-h1, t-body, t-price, etc.) ready to apply via className. It is categorised as a Read tool in the Grocers Design MCP Server, which means it retrieves data without modifying state.
Register the Grocers Design MCP server in PolicyLayer and add a rule for list_semantic_classes: 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 Grocers Design. Nothing to install.
list_semantic_classes 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_semantic_classes 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_semantic_classes. 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_semantic_classes is provided by the Grocers Design MCP server (rogerio-ignacio-filho/grocers-design-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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