What problem does it solve? Creating publication-quality scientific diagrams normally requires manual drawing tools, templates, or coding, and iterating on quality is slow. This Skill generates diagrams from natural-language descriptions using the Nano Banana 2 image model and automatically reviews each result with Gemini 3.6 Flash against document-type quality thresholds, regenerating only when the score falls short. ## Core Features & Use Cases - Natural-language diagram generation: Describe flowcharts, neural network architectures, biological pathways, circuit diagrams, or system architectures and receive a PNG output. - Smart iterative refinement: Gemini 3.6 Flash scores each generation on scientific accuracy, clarity, labels, layout, and appearance; regeneration happens only below the threshold for the chosen document type (journal 8.5, poster 7.0, presentation 6.5, etc.). - Auditable review logs: Each run writes versioned images plus a JSON review log with scores, critiques, and early-stop reasons. - Use Case: A researcher needs a CONSORT participant flow diagram for a journal submission; they describe the screening, exclusion, and randomization counts and receive a threshold-checked figure with a review log. ## Quick Start Ask the assistant to generate a CONSORT flow diagram with 500 screened, 150 excluded, and 350 randomized participants saved to figures/consort.png for a journal document type.