AgonisticSpace names the political condition in which space becomes readable as structured conflict rather than neutral extension, aesthetic surface, or administrative container. Streets, façades, classrooms, archives, platforms, datasets, squares, and transit stops are scenes where bodies, institutions, climates, materials, images, and claims meet unevenly. LateralGovernance organises this conflict without reducing it to a single sovereign centre, following how power moves sideways through protocols, informal agreements, maintenance routines, permissions, interfaces, partial authorities, and institutional frictions. ThermalJustice grounds the analysis in embodied exposure: heat, shade, pavement, vegetation, housing, energy, mobility, and climatic asymmetry become the sensory substrate of public inequality. Yet no urban field survives as pure analysis; BioticCoupling shows how it depends on living exchanges with readers, platforms, policy contexts, classrooms, citation networks, activist publics, and environmental pressures. PlasticPeripheries provide the adaptive edge where those exchanges can occur without dissolving the field’s core grammar. A precise case would be an overheated, unshaded bus stop in a rent-pressured district: it is an agonistic site, laterally governed by fragmented authorities, thermally unjust in bodily terms, biotically coupled to public discourse, and open to socioplastic intervention at the periphery. Together, these five operators make the city readable as conflict, negotiation, exposure, ecology, and adaptive contact. Public space becomes the place where heat, power, and form are governed through pressure.