This Vim plug-in makes

• the keys { and } jump to the beginning respectively to the end of the current paragraph (instead of the first empty line before respectively after it, by default), and
• the key ) jump to the end of the current sentence (instead of the start of the next sentence).

Setup

If you prefer to use different key combinations instead, say g{, g} and g), add

nmap  g{  <Plug>(smartbraces-OpenBrace)
nmap  g}  <Plug>(smartbraces-CloseBrace)
xmap  g{  <Plug>(smartbraces-OpenBrace)
xmap  g}  <Plug>(smartbraces-CloseBrace)
omap  g{  <Plug>(smartbraces-OpenBrace)
omap  g}  <Plug>(smartbraces-CloseBrace)

nmap  g)  <Plug>(smartbraces-CloseParenthesis)
xmap  g)  <Plug>(smartbraces-CloseParenthesis)
omap  g)  <Plug>(smartbraces-CloseParenthesis)

to your vimrc.

If you prefer that the keys { and }, as well as ), jump to the beginning respectively to the end of the current paragraph, respectively sentence, only inside spellchecked buffers, but work as usual otherwise, add

  let g:smartbraces_spell = 1

to your vimrc.