DriftGate(): Not just a weekend challenge
This is a submission for Weekend Challenge: Dog Days Edition What I Built I started with the weekend challenge's small, ordinary dog prompt. But the dog isn't really the point — the dog is standing in for an agent . It wants something, it moves, it encounters boundaries, and its activity can be observed relative to a reference: where it's allowed to be, where the line sits, whether that line has…
The weekend challenge "Dog Days Edition" prompted the creation of a small, stateless function called "driftGate()". This function classifies signed deviation (value - reference) as "ok", "resist", or "jam" based on minimum and maximum hard and soft bounds. The dog in the demo serves as a metaphor for an agent, moving towards boundaries and encountering resistance or passage depending on the drift result.
The core purpose of driftGate() was to determine the smallest primitive that can report how far an activity has drifted from a reference without making judgments about the meaning of that drift or requiring the agent to understand boundaries. The function works by taking a value, a reference, and a bounds object (minHard, minSoft, maxSoft, maxHard) as input, and returning an object with a drift value, a state (jam, resist, or ok), and a side (under or over).
The dog in the demo moves continuously, calling driftGate() each time it attempts to move, and the returned result determines whether the dog is allowed to pass, warned, or stopped. The function's simplicity allows it to be applied to any agent's activity, providing a reusable way of assessing deviations from a reference, regardless of the domain or reference's fixity.
Written by urgent.news from Dev.to's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
