Assess Graphical Excellence

This is the assessment hub of the Tufte toolkit. Its job is to score an existing graphic, name what's wrong using Tufte's vocabulary (the duck, the dreaded grid, moiré vibration, dimensionality violation, etc.), and hand back the exact remedy plus the genre to switch to and an exemplar to emulate.

The output is concrete and source-grounded because the model reasons over a single principles file (references/tufte-principles.md) that quotes VDQI by page. Generic "improve data-ink ratio" advice is the failure mode this skill is designed to avoid.

What you need from the user

A description (or image, or file) of the graphic, and ideally its purpose and audience. If something essential is missing, infer reasonably and state the assumption rather than stalling.

How to assess (six-step workflow)