Function withErrorHandling

packages/mcp/src/tools/shared.ts:88–102

(
  fn: () => Promise<T>
)

 * Wrap a tool handler to catch errors and return them as MCP error content.
 */
export async function withErrorHandling<T>(
  fn: () => Promise<T>
): Promise<{ content: [{ type: 'text'; text: string }]; isError?: boolean }> {
  try {
    const result = await fn();
    return toText(result);
  } catch (err) {
    const message = err instanceof Error ? err.message : String(err);
    logger.error({ err }, `MCP tool error: ${message}`);
    return {
      content: [{ type: 'text' as const, text: `Error: ${message}` }],
      isError: true,
    };
  }
}