Video
How we design Agents // Dev Diaries
In one line: The lead character designer explains how an agent is born: who it is for, what it adds to the team, how it is balanced.
YouTube
How we design Agents // Dev Diaries
by VALORANT (Riot Games)
What to learn
Why every agent has a clear role and deliberate weaknesses: it helps you understand what is expected of you when you pick one.
What to skip
The parts about internal development (timelines, prototypes), if you only care about the game. The video is from 2022: the agents it mentions may have changed.