During January 2026, Harapeko contributed to the mdn/translated-content repository, focusing on improving the accuracy of Japanese documentation. They addressed a key bug in the CommandEvent example by updating the translation to use the correct property, event.command, in alignment with the HTML specification. Working primarily with Markdown and leveraging their skills in documentation and translation, Harapeko ensured that the Japanese content reflected current web standards. Their approach emphasized precise language and clear commit documentation, which enhanced the reliability of the translated material. This work improved developer trust in the documentation by providing standards-aligned, technically accurate examples for the community.