The Repository Is the Runtime
How much software-engineering knowledge can we compile into deterministic constraints so that model intelligence matters less? Software teams are beginning to discover an uncomfortable truth about agent-driven development: generating code was never the whole job. A capable model can produce an impressive implementation quickly. A cheaper model can often do the same when the task is narrow and the…
The Repository Is the Runtime article argues that in agent-driven software development, the focus should shift from optimizing model intelligence to designing a repository that requires less memory from each agent. The key idea is that generation is probabilistic, while acceptance must be deterministic. The article proposes a set of principles to guide the development of such a system, including treating context as RAM rather than disk, making agents easier to re-orient, and prioritizing correctness, verified changes, and minimal unnecessary context.
The author emphasizes that teams should optimize for verified changes and minimal duplicated work rather than token counts or lines generated per minute. The central principle of the system is to reason with models and compute with tools, and to store state externally while communicating through references.
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