Rehearsed Multi-Agent Live Product Demonstrations with Real-Time Voice Question Answering

• URL: http://arxiv.org/abs/2606.30294v1
• Date: Mon, 29 Jun 2026 13:36:51 GMT
• Title: Rehearsed Multi-Agent Live Product Demonstrations with Real-Time Voice Question Answering
• Abstract summary: Rhetor is a multi-agent system that produces a rehearsed live demonstration with segment-synchronized narration and real-time voice question answering.<n>The architectural contributions are a cross-modal feature representation that merges UI exploration with source-code analysis.
• Score: 0.06524460254566902
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Live product demonstrations are a recurring, high-cost activity in software organizations: a human presenter must select features, dispatch the corresponding interactions on a running application, narrate them coherently, and answer questions in real time. Existing automation addresses only fragments -- generalist browser agents target instruction-conditioned task completion, and demo-video tools produce fixed MP4 artifacts that cannot be questioned and silently break under interface drift. We propose Rhetor, a multi-agent system that takes a running web application and its source-code repository as input and produces a rehearsed live demonstration with segment-synchronized narration and real-time voice question answering. The architectural contributions are a cross-modal feature representation that merges UI exploration with source-code analysis into features tagged with discrete focus tiers, a grounded scripter constrained to UI elements observed during exploration and dispatched through multi-strategy semantic locators, a pre-presentation rehearsal loop with explicit convergence and graceful degradation to narration-only segments, and a runtime synchronization invariant that ties each browser action to the audio-end event of its narration segment. Across six pipeline sessions on four deployed applications -- including the public-domain whiteboard application Excalidraw -- the rehearser's internal locator-firing rate (sigma-bar) spans 0.31-1.00 over 147 scripted actions; on the substantial workload (53 actions, full tier differentiation), sigma-bar is approximately 0.92, and on the public-domain reference point the locator-repair step drives convergence to sigma-bar = 1.00 at iteration 2. We additionally define a benchmark protocol of ten metrics across six application categories that would establish, beyond the case study, whether each design choice contributes positively.

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