Preventing inadvertent global modifications

[Max Nikulin <manikulin@gmail.com>]

Hi,

Yesterday, when I was going to commit changes after editing several 
headings in different places of an Org file, I was surprised by huge 
diff with hundreds of chunks. Tags spread across the whole file were 
adjusted by one or tow spaces. Probably I just accidentally hit C-u 
before setting a tag to a new heading by C-c C-q. Of course, I did not 
noticed it immediately. I managed to create a commit with real changes 
without noise due to tags realignment. However I would like to prevent 
similar issues in future.

I can add a prompt for a particular argument of a function by

(defun nm-safe-org-set-tags-command (&optional arg)
   "Call `org-set-tags-command' requiring to confirm
realigning of all tags."
   (interactive "P")
   (cond
    ((and (equal '(4) arg) (not (yes-or-no-p "Realign all tags? "))))
    (t (call-interactively #'org-set-tags-command))))

(add-hook 'org-mode-hook
	  (lambda ()
	    (define-key org-mode-map (kbd "C-c C-q") 
#'nm-safe-org-set-tags-command)))

The function can be made a bit smarter by adding minimal file size 
threshold.

However almost certainly there are more function "destructive" in a 
similar way. Is there a more general approach to make commands safer in 
respect to global modifications?