Ship the Paper
3 essays.
Ship the PaperAgents
Swap the harness around a coding agent and its score moves nearly as far as swapping the model. I rebuilt the step behind most of that gap: how the agent's finished patch gets collected.
Ship the PaperAgents
FCPAgent makes a browser agent write down, before each step, what would prove that step wrong. I rebuilt the checking half and found the one failure no such statement can see.
Ship the PaperAgents
AgentOccam shrinks what a browser agent reads and what it is allowed to do. I rebuilt the shrinking step and it held up; the question it never asks is whether the action is allowed.