I wish Obsidian (or an alternative of some sort) could pick up Devonthink's "AI" and work through both my markdown and my PDF files. No task management, planni

I wish Obsidian (or an alternative of some sort) could pick up Devonthink's "AI" and work through both my markdown and my PDF files. No task management, planning, etc. Just plain reading, thinking and writing. The quest continues...