Professional output from deterministic rules.

Reader job first

Choose whether the reader needs to compare, rank, track change, explain composition, find a relationship, understand a process, or explore a network. Only then choose the visual pattern.

Message → evidence → context

Insight headlines lead analytical visuals. The evidence proves the message. Units, period, source, assumptions, and notes make the result trustworthy.

White analytical surfaces

Pages and exhibits stay white with dark text, restrained blue/slate color, consistent typography and corner radii, even when the operating system prefers dark mode.

Identity without distorting values

Curated icons, vector glyphs and supplied raster badges can help identify categories or entities. Charts use a separate identity key so numeric marks retain their geometry. Networks reserve space beside labels; dense diagrams preserve a readable identity key. Keep text labels, avoid decoration in dense plots, and use images only when identity matters. Photos are inline payloads; VSLZ does not store them on a server.

Quality gates

The client-side visual intelligence engine evaluates structural quality, warns about mismatched comparison patterns, blocks invalid stacked encodings and unreconciled waterfalls, and adapts labels/orientation before shrinking them into illegibility.

Explore the MCP developer reference → · Browse the visual pattern gallery →