shadcn-ui-mcp-server

get_component_metadata

Read-only

Fetches metadata for a named shadcn/ui component, offering key details for development and integration.

Instructions

Get metadata for a specific shadcn/ui v4 component

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "componentName": "<componentName>"
    },
    "name": "get_component_metadata"
  }
}

Input Schema

Name	Required	Description	Default
`componentName`	Yes	Name of the shadcn/ui component (e.g., "accordion", "button")

Schema Changelog

Changes observed during successful MCP inspections.

First observedv2.0.0Aug 21, 2026

TDQS

A3.5/5.0

Behavior3/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

The readOnlyHint annotation already indicates a safe read operation, and the description does not contradict it. However, the description adds no additional behavioral context (e.g., no side effects, no data mutability), so it relies on the annotation. It is adequate but not enriched.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is a single, concise sentence with no unnecessary words. It directly and efficiently conveys the tool's purpose, earning top marks for brevity and clarity.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the tool's simplicity and the presence of sibling tools, the description is sufficient for basic understanding. However, it omits usage guidance and does not hint at what metadata contains, which could leave ambiguity in richer contexts. It is adequate but not fully comprehensive.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema provides a clear description of componentName with examples, fully covering the parameter semantics. The tool description adds no extra detail, so it neither improves nor degrades the parameter understanding. Thus, it meets the baseline for a schema-covered parameter.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the tool retrieves metadata for a specific shadcn/ui v4 component, which is a specific action on a specific resource. It distinguishes from sibling tools like get_component (likely fetching the component code) and list_components (listing all), making the purpose unambiguous.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines2/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description does not specify when to use this tool over alternatives. It merely states functionality without explaining scenarios (e.g., 'use this when you need only metadata, not the full component'), nor does it mention any exclusions among siblings. This lack of guidance leaves the agent to infer usage.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

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