Intent-driven interfaces read signals to infer context. The signals that are most useful in 2026: time of day and day of week (a finance app user at 9am on Monday is likely checking balances, not exploring features), device posture (landscape vs portrait on a tablet signals different usage modes), session history (what has the user done in the last 3 minutes?), and explicit state (is the user mid-task or browsing?).
On-device AI makes this possible without privacy concerns. A small classifier running locally can determine from these signals what mode the interface should be in — focused task completion, exploration, or passive consumption — without any of the signal data leaving the device.
The important constraint: context inference should feel natural, not manipulative. If the interface shifts in ways the user cannot predict or control, it creates anxiety rather than reducing friction. Every intent-driven adaptation should have a path back to a predictable default state.