Now probably working! :)

Author: wmwnuk

README.md

@@ -26,4 +26,9 @@ vim.g.sigma_skeleton_dir = '~/.vim/templates'
 vim.g.sigma_skeleton_fill = 0
 ```
 
-This is a very early version, it might not work as expected.
+This is a very early version, it might not work as expected, but it should.
+Feel free to create issues if something goes wrong.
+
+## Similar projects / inspirations
+
+- [vim-skeleton](https://github.com/noahfrederick/vim-skeleton)

autoload/skeleton.vim

@@ -9,21 +9,19 @@
 function! skeleton#load(file_path)
     if !filereadable(a:file_path) || (g:sigma_skeleton_fill == 1 && getfsize(a:file_path) < 1)
         let s:file_name = split(a:file_path, '/')[-1]
-        let s:file_dir = split(s:file_path, '/')[-2]
-        let s:file_ext = split(s:file_name, '.')[-1]
+        let s:file_dir = split(a:file_path, '/')[-2]
+        let s:file_ext = split(s:file_name, '\.')[-1]
         let s:template_path = expand(g:sigma_skeleton_dir .. '/' .. s:file_name)
         let s:template_by_dir = expand(g:sigma_skeleton_dir .. '/' .. s:file_dir .. '/skel.' .. s:file_ext)
         let s:template_default = expand(g:sigma_skeleton_dir .. '/skel.' .. s:file_ext)
 
         if filereadable(s:template_path)
-            return s:template_path
+            execute '0read ' .. s:template_path
         elseif filereadable(s:template_by_dir)
-            return s:template_by_dir
+            execute '0read ' .. s:template_by_dir
         elseif filereadable(s:template_default)
-            return s:template_default
+            execute '0read ' .. s:template_default
         endif
     endif
-
-    return ''
 endfunction
 

plugin/skeleton.vim

@@ -21,5 +21,5 @@ endif
 
 augroup sigma_skeleton
   au!
-  autocmd BufNewFile *.* silent! 0r skeleton#load(%:p)
+  autocmd BufEnter * silent! if &buftype=='' | call skeleton#load(expand('%:p')) | endif
 augroup END