listComponents

Provides a full list of Shadcn Space components. Agents can use this to discover components to build pages or sections within a project.

Server Shadcn Space MCP shadcnspace/shadcnspace-mcp
Category Read
Risk class Low
Parameters 00 required

What listComponents does on Shadcn Space MCP

AI agents call listComponents to retrieve information from Shadcn Space MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Why listComponents needs a policy

This tool retrieves and lists available UI components for informational purposes only. It enables discovery of component options but does not modify, execute, delete, or create any data or resources. The capability is purely read-only with no destructive, financial, or code execution implications. Low severity due to the harmless nature of accessing a component catalog.

From the tool's definition Tool name 'listComponents' and description 'Provides a full list of Shadcn Space components' indicate a query/discovery operation with no side effects.

Questions about listComponents

What does the listComponents tool do? +

Provides a full list of Shadcn Space components. Agents can use this to discover components to build pages or sections within a project. It is categorised as a Read tool in the Shadcn Space MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on listComponents? +

Register the Shadcn Space MCP server in PolicyLayer and add a rule for listComponents: 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 Shadcn Space MCP. Nothing to install.

What risk level is listComponents? +

listComponents is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit listComponents? +

Yes. Add a rate_limit block to the listComponents 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.

How do I block listComponents completely? +

Set action: deny in the PolicyLayer policy for listComponents. 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.

What MCP server provides listComponents? +

listComponents is provided by the Shadcn Space MCP server (shadcnspace/shadcnspace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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