diff --git a/autoload/sy/debug.vim b/autoload/sy/debug.vim
index 32b2640..3443d8d 100644
--- a/autoload/sy/debug.vim
+++ b/autoload/sy/debug.vim
@@ -46,3 +46,29 @@ function! sy#debug#list_active_buffers() abort
     endif
   endfor
 endfunction
+
+" Function #verbose_diff_cmd {{{1
+function! sy#debug#verbose_diff_cmd() abort
+  if exists('b:sy_info')
+    echohl Statement
+    echo 'Command: '. b:sy_info.cmd
+    echohl NONE
+    let output = sy#repo#get_diff_{b:sy.type}()[1]
+    if empty(output)
+      echo 'Output: []'
+    else
+      echo 'Output:'
+      for line in split(output, '\n')
+        if line[0] == '+'
+          echohl DiffAdd
+        elseif line[0] == '-'
+          echohl DiffDelete
+        else
+          echohl NONE
+        endif
+        echo line
+        echohl NONE
+      endfor
+    endif
+  endif
+endfunction
diff --git a/autoload/sy/repo.vim b/autoload/sy/repo.vim
index d5f7495..c31d1ec 100644
--- a/autoload/sy/repo.vim
+++ b/autoload/sy/repo.vim
@@ -94,11 +94,13 @@ function! sy#repo#get_stats() abort
   return b:sy.stats
 endfunction
 
+
 " Function: s:run {{{1
 function! s:run(cmd, path, do_switch_dir) abort
   let cmd = substitute(a:cmd, '%f', a:path,     '')
   let cmd = substitute(cmd,   '%d', s:difftool, '')
   let cmd = substitute(cmd,   '%n', s:devnull,  '')
+  let b:sy_info.cmd = cmd
 
   if a:do_switch_dir
     try
diff --git a/plugin/signify.vim b/plugin/signify.vim
index 382e4ea..8fd6cc2 100644
--- a/plugin/signify.vim
+++ b/plugin/signify.vim
@@ -39,6 +39,7 @@ augroup END
 " Init: commands {{{1
 
 command! -nargs=0 -bar SignifyDebug           call sy#debug#list_active_buffers()
+command! -nargs=0 -bar SignifyDebugDiff       call sy#debug#verbose_diff_cmd()
 command! -nargs=0 -bar SignifyRefresh         call sy#util#refresh_windows()
 command! -nargs=0 -bar SignifyToggle          call sy#toggle()
 command! -nargs=0 -bar SignifyToggleHighlight call sy#highlight#line_toggle()