Agent Skills: things-app

Read, capture, schedule, and update tasks and projects in Things 3. Prefer the `things` CLI whenever there's command-line access to Things; otherwise use a connected Things MCP for headless or remote environments (full read + write, any device), the `things:///` URL scheme (any device with Things, write-only), or email-to-Things for unattended capture. Use to add todos, build a project, show Today/Inbox, find tagged tasks, or schedule from desktop, phone, or a serverless routine.