The moment a build's first task completes, the system writes the estimate into the application's own repository — a file named estimate.md, sitting beside the project plan, carrying the summary, the formula inputs, and the full story-point breakdown, under a timestamped commit. The footer on every one of them reads: deterministic estimate — same inputs always produce the same number.
The estimate is no longer a slide from a kickoff meeting that nobody can find by month three. It is version-controlled evidence, born with the code it describes, and it never drifts, because it never changes unless the requirements do.
It also means the estimator is accountable. Projected task counts sit in the record next to executed task counts, build after build. Most estimation methods never face that comparison. Ours cannot avoid it.