What are the signals to identify if I am snubbed at my workplace?

Pardon my rudeness, but this seems like a sloppy question, coming from a programmer (which is not a good sign): is the work you're being given less critical? Calls for more or less care? Is or isn't more difficult, or requires more background knowledge? If you're being given tasks reducing difficult tech debt that may mean you're more highly valued even if the spotlight isn't on you, for example. But don't worry about other's opinions, get precise, disambiguate your speech and your code, write precise solid code and let 'em discover your merits.

Probably how much you're paid and whether you get a raise if you ask for it.