This dissertation was dedicated to analyzing the work process of Damage Reduction Agents (ARDs) of the Centro de Convivência “É de lei” during the years 2020 and 2021. Based on my personal, professional and collective experience as an ARD, I proposed to return attention to profiles, trajectories, practices, technologies and competences found in the daily work with HR. The combination of writing, ethnography of shared trajectories, critical ethnography and work ethnography made it possible to highlight relevant information for the base formation of agents in this field. This combination resulted in seven stages of the research where collection and analysis methods alternate, specifically field work and journaling, semi-structured interviews and narrative analysis, finally, discussion and conclusion based on the assumptions of the theory of work in health and intersectionality. Thus, this research was developed at the intersections between the areas of Collective Health, Popular Education and Work Ethnography, where the relevance of light technologies in modulating care strategies and intentions was evident. At the crossroads of experiences with ARDs, I found my bearings and concluded that Harm Reduction is an important technological way of producing comprehensive, intersectional and emancipatory care, which indicates the need to build an organizational culture of Living Well and alternatives systemic reactions to prohibitionism, racism, cisheteropatriarchy and capitalism.