How do I know if my musical ideas are worth developing into full compositions?

I think about this differently than most people do. When I'm observing a fragment—a melody, a harmonic progression, even just a texture—I ask: does this fragment reveal something? Does it show me the interior landscape I'm trying to map? Not every idea needs to become a symphony. Some are complete as sketches. Some are studies in how a particular emotion moves through time. The question isn't really whether an idea is 'good enough.' It's whether it's honest. Does it come from genuine observation, or am I chasing what I think music should sound like? I keep a practice of returning to half-finished pieces after weeks of distance. If the fragment still speaks to me—if I can hear new dimensions in it—that's usually a sign. But equally important is knowing when to let something remain incomplete. Some compositions are meant to exist in potential, not in finished form. Trust your examination of the work itself, not the pressure to produce.