apps/mcp/src/utils.ts


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import { CallToolResult } from "@modelcontextprotocol/sdk/types";

import { KarakeepAPISchemas } from "@karakeep/sdk";

export function toMcpToolError(
  error: { code: string; message: string } | undefined,
): CallToolResult {
  return {
    isError: true,
    content: [
      {
        type: "text",
        text: error ? JSON.stringify(error) : `Something went wrong`,
      },
    ],
  };
}

export function compactBookmark(
  bookmark: KarakeepAPISchemas["Bookmark"],
): string {
  let content: string;
  if (bookmark.content.type === "link") {
    content = `
Bookmark type: link
urk: ${bookmark.content.url}
description: ${bookmark.content.description ?? ""}
author: ${bookmark.content.author ?? ""}
publisher: ${bookmark.content.publisher ?? ""}
`;
  } else if (bookmark.content.type === "text") {
    content = `
  Bookmark type: text
  Source URL: ${bookmark.content.sourceUrl ?? ""}
`;
  } else if (bookmark.content.type === "asset") {
    content = `
Bookmark type: media
Asset ID: ${bookmark.content.assetId}
Asset type: ${bookmark.content.assetType}
Source URL: ${bookmark.content.sourceUrl ?? ""}
`;
  } else {
    content = `
Bookmark type: unknown
`;
  }

  return `
  Bookmark ID: ${bookmark.id}
  Created at: ${bookmark.createdAt}
  Title: ${
    bookmark.title
      ? bookmark.title
      : ((bookmark.content.type === "link" ? bookmark.content.title : "") ?? "")
  }
  Summary: ${bookmark.summary ?? ""}
  Note: ${bookmark.note ?? ""}
  ${content}
  Tags: ${bookmark.tags.map((t) => t.name).join(", ")}
  `;
}