The problem
You open your editor, write a prompt, and wait. The model responds. You write another. This works fine until the task you are actually trying to do cannot fit inside a single exchange.
The moment your work becomes a chain, the model stops being your tool and you become its memory. You copy outputs into the next input, watch sessions so they do not expire, and discover too late when step three quietly produced bad output.
Now imagine that chain has forty steps, touches twenty files, or needs to keep running while you are asleep.
Queuing prompts is a solved problem. What is not solved is keeping them coherent.