Wellness brand Rouge Care ran a connected TV awareness campaign through PubMatic's AgenticOS platform, managed by agency Klever Programmatic, with a twenty-five-thousand-dollar budget and attributable revenue above one hundred and twenty-five thousand dollars — a five-hundred per cent return on ad spend against a two-hundred-and-fifty per cent target. The campaign deployed two purpose-built agents in sequence: a planning agent for audience discovery and targeting parameter definition, and a buying agent for execution on PubMatic's sell-side infrastructure. No human trader intervened in the buying loop. This is one of the first publicly documented cases of a fully agentic programmatic buying workflow with verified performance data. The architectural detail that matters most is the sell-side origin: AgenticOS runs on PubMatic's SSP infrastructure, not on a DSP. An SSP-native agency workflow inverts the traditional programmatic value chain in which the buy-side platform holds the intelligence layer and the SSP is a passive inventory source. If SSPs can deploy planning and buying agents that operate directly on their own inventory — bypassing the DSP's optimisation layer — the margin compression implications for demand-side platforms are direct. The Rouge Care case study is a single data point at a modest budget level, but it is the first published number that gives the agentic programmatic thesis a verifiable performance claim.