I built a skill called /todo. You give it a messy list of tasks in any language, and it turns them into a clean to-do page in English. It sorts the tasks by priority, adds due dates and categories, and opens a colorful interactive HTML page in the browser. I trigger it by typing /todo and then my tasks.
At first the skill just made a plain markdown list, and in the VS Code editor that looked dull with no real colors. After watching the agent work, I changed it to output an interactive HTML page instead with clickable checkboxes that stay ticked even after I reload (saved in the browser) and a progress bar. Much more useful. I also installed it globally so it works in every project.
On to Day 4!