I genuinely really enjoyed this. I liked the idea of reversing a stealth game but never considered making it since I didn't quite work out how to make a natural and fun game loop. So I'm glad I found your game!
The lights highlighting the agent felt surprisingly exciting, and it was cool seeing what are usually dumb guards move and react in (if I do say so myself) a quick and intelligent manner. Controls felt great, art looked great, and everything fits the theme perfectly.
On looking through the other comments, it seems you already have plenty of ideas so I'm keen to see it developed further.