Individual skill
chart-choice
Pick the chart the data and the point actually need — the question-to-chart mapping (comparison, trend, composition, distribution, relationship), the honesty rules (axes, baselines, dual-axis traps), and the one-chart-one-point discipline. Use when asked what chart should I use, make this data visual, why does this chart feel misleading, or fix this graph for the deck. Produces the chart verdict with its reasoning, the honesty checklist applied, and the labeling that lets the chart travel without its author.
skills/chart-choice/SKILL.md
Source commit f7c90bc09ee05dc25cf257bdb1826f2c2552c2cb
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# Chart Choice Skill
Chart choice is a sentence-completion exercise: the chart exists to make *one stated point* legible in three seconds, and the point's grammar picks the form — comparing things (bars), change over time (lines), parts of a whole (stacked/100% bars — pie only under five slices), distribution (histogram), relationship (scatter). Most bad charts are either the wrong form for the point, or the right form dressed dishonestly: truncated bar axes, dual axes engineered for drama, 3D anything. The skill picks the form, then runs the honesty pass.
## What This Skill Produces
- **The chart verdict** — the form, chosen from the point's grammar, with the reasoning stated
- **The honesty pass** — axes, baselines, sorting, and the dual-axis/3D vetoes applied
- **The labeling spec** — title-as-the-point, direct series labels, the source line — so the chart survives being screenshot out of context
- **The alternative** — when the honest answer is "this wants a table, not a chart"
## Required Inputs
Ask for these if not provided: