Conciseness

Lean for its scope: it assumes Claude's competence, never explaining what a figure, Matplotlib, or a colour palette is, and every section drives action. The only mild redundancy is the 'When to use' list restating the description's triggers, which is not enough to drop below the lean-and-efficient anchor.

Actionability

As an instruction-only skill it gives concrete, specific guidance — default palettes (ColorBrewer Qualitative / Viridis), an 8pt post-scaling font floor, per-figure-type tool defaults, an explicit universal-rule list, and a copy-ready Output format template — so the absence of code is not penalized.

Workflow Clarity

An explicit 8-step Core procedure is paired with a separate 7-item Integrity-gate checklist tagged [inspection]/[user-verify] and a defined failure path ('If any [inspection] check fails, mark the design as needs user attention'), matching the clear-sequence-with-validation-and-checklists anchor.

Progressive Disclosure

The body is an overview that defers detail to five clearly-signaled, one-level-deep reference files (motivated-example.md, solution-overview.md, experimental-results.md, tools.md, design-rules.md), all verified present in ./references/, with content appropriately split and easy to navigate.

Specificity

Lists multiple concrete actions — "Recommends the right design paradigm, layout, labelling, and tool for each figure type, then runs a quality-control audit" — naming the three figure types it targets, matching the 'lists multiple specific concrete actions' anchor.

Completeness

Explicitly answers both what (advises on design of the three core figures, recommends paradigm/layout/labelling/tool, runs a QC audit) and when (an explicit 'Use when the user asks to...' clause), satisfying the top anchor.

Trigger Term Quality

The 'Use when' clause gives natural phrases a user would actually say — 'design a figure', 'draw Figure 1', 'plot experiment results', 'choose the right chart type', 'which figure tool to use', 'figure looks unprofessional' — broad coverage of common variations.

Distinctiveness Conflict Risk

Occupies a clear niche — paper-figure design for three named figure types — with specific triggers unlikely to fire for adjacent skills it even names (intro-drafter, pre-submission-reviewer).