my-own-url-list

\documentclass[11pt,parskip=half,numbers=noenddot,bibliography=totoc,index=totoc,
  listof=leveldown
]{scrbook}

\addtotoclist{loe}
\newcounter{example}[chapter]
\renewcommand{\theexample}{\thechapter.\arabic{example}}
\newcommand{\listofloename}{List of Examples}
\newcommand\listofexamples{\listoftoc{loe}}
\setuptoc{loe}{chapteratlist,leveldown}
\makeatletter
\newcommand\l@example{\l@figure}
\makeatother

\usepackage{tcolorbox}
\newcommand{\example}[2] {
  \setlength\parfillskip{0pt plus 1fil}%
  \refstepcounter{example}%
  \addxcontentsline{loe}{section}[\theexample]{\ignorespaces #1}
  \theexample:\ \ignorespaces #1 #2}

\begin{document}
\chapter{First}


\chapter{Second}
\example{Second example.}{Very nice!}
\example{Third example.}{Very nice too!}

\chapter{Lists}
\listofexamples
\end{document}