This paper argues that long-running AI-assisted work is not only a matter of prompting, but of handoff discipline. The ordinary tool metaphor is no longer sufficient for work that depends on context, correction, continuity, retrieval, authority boundaries, and recovery from drift. The claim is not that conversational AIsystems are persons, employees, moral equals, or legal subjects. Rather, "partner" is used as a methodological stance: a disciplined way of preserving the process that makes outputs inspectable, correctable, and reusable.This paper extends the prior methodology introduced in "Development Methodology of a Code-Illiterate User," which framed machine-readable context as part of reproducible AI-assisted system development without formal software training. Here, that prior context-method work is advanced through the explicitnaming and demonstration of batons as provenance-bearing handoff artifacts for sustained AI-assisted work. The central claim is that the better relationship is the better method: AI-assisted work becomes moreaccountable when the process that produces output is treated as part of the work rather than discarded once a useful answer appears.