What plugins, tools and userscripts are there for editing Wikipedia?

Question

userscript

It just so happens that I need to write an article for Wikipedia. Starting to gradually master its functionality, I came across some inconveniences and difficulties when filling out. Much needs to be written by hand, which is extremely inconvenient and tiring. Often there are errors, inconsistencies in patterns, etc.
So I appeal to those who are no longer new to this business (and there probably should be such people here), what additional tools, plugins, userscripts do you use to improve the convenience and speed of work when creating articles?