Based on a series of practical results—urban design-research projects— this article presents several methodological reflections and disciplinary proposals, in conjunction with references that gradually build a theoretical framework for each of the themes. Starting with the justification of the manifesto format and its relationship to the practical method used, it continues with the initial definitions of infrastructures and its political connotations, to later establish the problem (structural violence) and suggest preliminary alternatives (active solidarity). Moreover, the methodological proposal of light infrastructures and its relationship with non-violence is consolidated, to conclude in a call for disciplinary invention.