It's not always obvious if Claude Code finished because it's done or needs an answer to a question.. Now the tab color will tell you.

   pulsing orange – blocked on you (question or permission prompt)
   solid green    – finished the turn
  ⬜ no tint        – working
 

Not obvious to me when I started:

- Telling a BLOCKING turn ("Which file?") from a CLOSING one ("Anything else?") isn't a regex job (if '?' in answer return BLOCKING). I used a mixed method, with Haiku and rules to optimize for both speed and accuracy.

- The pulsing works even if Claude doesn't use a AskUserQuestion prompt.

- Using this made the recent very annoying 60 second timeout (https://github.com/anthropics/claude-code/issues/73125) for such prompts less disruptive. I simply run `claude --disallowed-tools AskUserQuestion` and still get prompted by my tab color.

macOS + iTerm2 + Claude Code only. MIT. https://github.com/rickardstureborg/claude-needs-input