General-purpose coding agents such as Claude and Cursor can help write code, but reproducibility starts before coding. The source must be extracted correctly, including equations, tables, diagrams, citations, and artifacts, and understood as one connected body of context.
This is a harness problem, not an intelligence problem. Last Lab is designed around that workflow: it extracts the resource, resolves dependencies and artifacts, configures the environment, and executes the result before delivery.
The lab then runs in the browser with CPU and a generous free GPU tier. You do not need to move the output elsewhere, rebuild the environment, or watch an agent reinvent the setup each time. Small points of friction disappear, so you can stay with the work.