Agent-Skills.md

Agent Skills: UI Design Playbook

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UncategorizedID: connorads/dotfiles/ui-design-playbook

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pnpm dlx add-skill https://github.com/connorads/dotfiles/tree/HEAD/.config/skills/personal/ui-design-playbook

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.config/skills/personal/ui-design-playbook/SKILL.md

Skill Metadata

Name
ui-design-playbook
Description
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UI Design Playbook

A build/refactor playbook for shipping UI that looks designed, not defaulted. You do not need design training to apply it - each rule is a directive plus the reason behind it.

When to use

Pull this in when you are:

  • Building a new screen, component, or page from scratch.
  • Restyling or polishing existing UI ("make this look better / more premium").
  • Doing a design review of someone's markup or styles.
  • Setting up the foundational systems: spacing scale, type scale, colour palette, elevation ramp.
  • Stuck on a specific symptom: cramped layout, flat/muddy look, weak hierarchy, garish colours, unreadable text over an image.

Read the matching reference file before you start - don't guess from the index alone. The index is a map, the references hold the actual directives, rationale, and snippets.

How to work

  1. If starting fresh, skim references/process.md first - it governs sequence (feature-first, grayscale-first, systems over one-offs).
  2. Jump to the reference for the problem in front of you.
  3. If the project uses Tailwind, read references/tailwind.md to translate the plain-CSS guidance into utility classes and tokens.

Rule index

Process & systems → references/process.md

Feature-first, not page-first · design the smallest real task · sketch low-fi in grayscale · short build/restyle cycles, ship the smallest useful version · give the product a deliberate personality (type, colour, radius, voice) · limit your options · define systems up front and decide by elimination.

Visual hierarchy → references/hierarchy.md

Hierarchy beats surface styling · don't lean on size alone - use weight and colour · two text weights, two-or-three text colours · soft/tinted greys for supporting text · de-emphasise to emphasise · drop or demote labels · separate visual from document hierarchy · rank actions (primary / secondary / tertiary) rather than styling by semantics · keep destructive actions quiet until confirmation.

Spacing & layout → references/spacing-layout.md

Start spacious then tighten · constrain to a ratio-based spacing scale · don't fill the full width - size each section to its content · split into columns instead of stretching · fixed sidebar + flexible content, cap with max-width · more space between groups than within · tie labels to their inputs.

Typography → references/typography.md

Fixed, non-linear type scale (hand-picked, whole pixels) · neutral sans with many weights and a system fallback · measure of 45-75 characters · line-height scales with length and inversely with size · left-align by default, never centre long text · right-align numeric columns · tighten large headlines, widen all-caps.

Colour → references/colour.md

Work in HSL · build a full palette (greys, primaries, accents, semantics), not five swatches · predefine ~9 shades per colour, never compute on the fly · avoid pure black · trust eyes over maths · use perceived brightness and small hue rotations for natural ramps · tint and keep greys consistent in temperature · meet contrast minimums and never rely on colour alone.

Depth & elevation → references/depth.md

Light from above · pair a soft cast shadow with a tight contact shadow · shadow size = distance, closer pulls focus · define an elevation scale and map it to role · press elements down on interaction · achieve depth flat via colour, overlap, and solid offset shadows.

Images → references/images.md

Source real photography · fix the image (overlay, lower contrast, colourise), not the text · respect intended size - don't enlarge icons or shrink full screenshots · crop or abstract when space is tight · constrain user image shape and prevent background bleed with an inner border.

Finishing touches & levelling up → references/finishing-touches.md

Supercharge existing elements (icons for bullets, styled quotes/links, custom controls) · accent borders and subtle backgrounds · design empty states first · reach for borders less - separate with shadow, background, or spacing · rethink component conventions · advanced flourishes: inverted selected states, nested controls in inputs, two-tone headlines, layered shadows · build to learn and keep a curious eye.

Tailwind v4 mapping → references/tailwind.md

How the spacing, type, colour, and shadow systems above map onto Tailwind v4 tokens and utilities. Read when the project uses Tailwind.