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sunpeak API

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Overview

The useToolInfo hook returns metadata about the tool call that instantiated the current app. It is a convenience wrapper around useHostContext.

Wraps onhostcontextchanged

MCP Apps SDK reference

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Import

import { useToolInfo } from 'sunpeak';

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Signature

function useToolInfo(): ToolInfo | undefined

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Returns

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return
ToolInfo | undefined
Metadata about the tool call, or undefined if not available.
{
  id?: RequestId;   // JSON-RPC id of the tools/call request
  tool: Tool;       // Tool definition including name, inputSchema, etc.
}

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Usage

import { useToolInfo } from 'sunpeak';

function MyResource() {
  const toolInfo = useToolInfo();

  return (
    <div>
      <p>Rendered by: {toolInfo?.tool.name ?? 'unknown tool'}</p>
    </div>
  );
}
The tool info comes from McpUiHostContext.toolInfo.