Figure Creation: Create, edit, or plan figures in Stencila Markdown — simple image figures, executable code figures, multi-panel subfigure layouts with grid arrangements, and SVG annotation overlays using overlay components. Use when asked to add or revise a figure, chart, plot, caption, subfigure grid, panel layout, overlay annotation, callout, scale bar, arrow, region-of-interest highlight, or figure design plan for a Stencila document.

Figure Review: Critically review an existing or proposed Stencila figure artifact for structural correctness, caption quality, layout, overlay annotation safety, cross-references, measurement validity, and approval readiness. Use when asked to review, critique, assess, audit, validate, or improve a figure block, multi-panel figure, subfigure grid, executable chart figure, caption, SVG overlay, ROI annotation, scale bar, panel labeling, or figure plan.