The interface where a human's goal is translated into a model-readable specification. The point at which intent crosses into structure. Distinct from the Control Surface: the Control Surface is the whole substrate; the Intent Surface is one specific structure: the human-to-model translation point: sitting on the Control Surface.
The Agent Control Architecture Pack includes deployable system prompts, AGENTS.md templates, and fully-worked BYOP rebuilds that operationalise every precision term.
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