Thanks for the link, it looks nice. I'll consider it if I ever start doing anything in Node. At the moment, however, I prefer it simple:

In Fish Shell I have:

  function grp
     grep -rni $argv
  end

and I simply do "grp todo", "grp fixme", etc. Example output (it's actually also colored):

  src/main.lisp:63:    ;; TODO FIXME introduce at some point a mapping for page list -> generation function, or something.
  src/main.lisp:89:;;; FIXME deprecated
  src/main.lisp:94:;;; FIXME unused and probably throwaway
  src/site-components.lisp:9:  ;; FIXME use some page structure map to map from (name language) to base filepath
  src/site-components.lisp:31:  (let ((colorize:*css-background-class* "no-paren-fx")) ;FIXME make configurable maybe?

That's good enough for me :). Also I have appropriate highlights set up in editors & IDEs I use :).