vim.g.loaded_unimpaired == 1

unimpaired.lua

-- Copy mappings prefixed with [ and ] to ( and ) and add desc
for _, mode in ipairs({ 'n', 'o', 'x' }) do
  local keymaps = vim.api.nvim_get_keymap(mode)
  for _, keymap in ipairs(keymaps) do
    for left, right in pairs({ ['('] = '[', [')'] = ']' }) do
      if keymap.lhs ~= right and keymap.lhs:match('^%' .. right) then
        local lhs = keymap.lhs:gsub('^%' .. right, left)
        local rhs = keymap.lhs
        local callback = keymap.callback
        local desc = keymap.desc and keymap.desc
          or keymap.rhs and keymap.rhs:gsub('^<%w+>%(([%w-]+)%)', '%1'):gsub('-', ' '):gsub('^unimpaired ', '')
          or rhs
        vim.api.nvim_set_keymap(mode, lhs, rhs, { callback = callback, desc = desc })
      end
    end
  end
end