Every time your agent calls an LLM, it sends the full conversation history.
Turn 20 includes turns 1–19. Turn 50 includes turns 1–49. Nobody notices because it's happening inside the agent, silently, on every single request.
I noticed it while building Trooper - a Go proxy that sits between agents and LLMs. I was watching token counts climb across a long debugging session and realised the agent was replaying the same context over and over. Most of it was noise.
The model didn't need a transcript. It needed state.
What state actually means
