// Package enforce makes drift cost something at the OS level. Tier A minimizes
// the active window when the session is enforcing and the drift judge has
// confirmed the window is off-task. The Guard is a pure OS primitive; all
// policy — whether and when to enforce — lives in the session controller.
package enforce

import "context"

// Guard performs OS-level enforcement actions on demand.
type Guard interface {
	// MinimizeActive minimizes the currently-focused window. It is idempotent
	// (minimizing an already-minimized window is harmless) and best-effort: it
	// returns an error for diagnostics, but callers never block on it and treat
	// failure as "enforcement did nothing this time."
	MinimizeActive(ctx context.Context) error
}