PosterMELD presents a template-conditioned multi-agent pipeline for turning multimodal papers into editable scientific posters. Capacity-aware slots constrain writing before rendering, while deterministic checks and vision-language-model review route failures to bounded repair. On 621 papers, the authors report an 81.3% Print-Ready Rate, 3.4 times P2P and 5.2 times PosterGen. Accepted requests export both editable PPTX and PNG files. The reported mean cost is USD 0.38 per request, or 3.5% of Codex+Skill. A frozen VLM evaluates conditional Craftsmanship-Harmony-Expressiveness scores for print-ready outputs.
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