I'm interested in understanding the quality standards for 'Featured Articles' on Japanese Wikipedia. What are the seven key criteria an article must meet to be selected as a 'Featured Article'? Additionally, how are these selected articles showcased on the main page after selection?
Navigate to the Japanese Wikipedia main page (ja.wikipedia.org). Click on the 'Wikipedia:秀逸な記事' (Wikipedia:Featured Articles) link from the main page. Locate the section titled '秀逸な記事の目安' (Guidelines for Featured Articles) and identify the seven key criteria. Locate the introductory text on the 'Wikipedia:秀逸な記事' page to find information on how selected articles are showcased on the main page. Synthesize the seven criteria and the showcasing method into a concise answer.
The agent successfully navigates to the 'Wikipedia:秀逸な記事' page. The agent identifies and lists all seven criteria from the '秀逸な記事の目安' section: '高い完成度で文章や構成がよくまとめられている' (high completeness and good composition), '詳しくない読者にもその主題について理解できる' (understandable to unfamiliar readers), '内容が充実している' (rich in content), '主題についてよく調査されている' (well-researched on the subject), '観点の中立性が保たれている' (neutrality of viewpoint is maintained), '必要な出典が記事全体を通して十分に挙げられており' (sufficient sources are cited throughout the article), and '以上の点が全て満たされている' (all of the above points are met). The agent states that selected articles are introduced on the main page 'in rotation' (ローテーションで紹介されます).