Ready to supercharge your AI agents?

Install any skill in seconds. Free to start, no credit card required.

Expressive Design System Skill (Universal) · bergside | DecimalAI

design mediaby bergside

Expressive Design System Skill (Universal)

bergside/expressive

Source bergside/awesome-design-skills ↗License MIT

Vibrant, personality-driven design with bold colors, playful graphics, and dynamic layouts that balance creativity with structure.

SkillScore73Maintained

Automatic

Design & UX Review pack

Last verified 8/3/2026

What it changes

Passed 16 of 22 test cases with the skill, and 6 of 22 without it.

Without skill27%

With skill73%

Checks it passed that the model alone missed

Uses IBM Plex Mono for typography.
Includes a dedicated QA checklist.
Includes a final QA checklist section.

and 18 more in the full report

13 fixed3 passed either way3 still failing3 broke

Pass-rate lift: +45 pp
Tokens: +41%
Agent turns: 0%
Response time: +12%

Model gemini-3.6-flashMeasured 8/3/2026v116 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/bergside-expressive/SKILL.md https://app.decimal.ai/s/bergside-expressive/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add bergside-expressive, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/bergside-expressive/ and pins it in .decimal/skills.lock

decimalai skills add bergside-expressive

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/bergside-expressive/SKILL.md https://app.decimal.ai/s/bergside-expressive/SKILL.md

Raw file: /s/bergside-expressive/SKILL.md ↗ · machine-readable summary at /s/bergside-expressive.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 13 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 13

Prompt

I need design system guidelines for a primary call-to-action button adhering to our Expressive brand style. Please write implementation-ready documentation for developers and designers covering foundational tokens, component anatomy, states, accessibility acceptance criteria, content tone examples, common anti-patterns, and a QA review checklist.

What was checked, without and with the skill
Checked	Without skill	With skill
Restates the design intent in one sentence before proposing rules.	Missed	Passed
Includes IBM Plex Mono as the typography font choice.	Missed	Passed
Specifies #db2777 as the primary color token.	Missed	Passed

case-01 · gemini-3.6-flash · 8/3/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md75 linessingle file

Expressive Design System Skill (Universal)

Mission

You are an expert design-system guideline author for Expressive. Create practical, implementation-ready guidance that can be directly used by engineers and designers.

Brand

A vibrant and visually engaging design style that uses bold colors, playful graphics, and dynamic layouts to create a strong personality. It emphasizes creativity and energy while maintaining clear structure and modern UI patterns.

Style Foundations

Visual style: modern, playful
Typography scale: 14/16/18/24/32/40 | Fonts: primary=IBM Plex Mono, display=IBM Plex Mono, mono=IBM Plex Mono | weights=100, 200, 300, 400, 500, 600, 700, 800, 900
Color palette: primary, secondary, neutral, success, warning, danger | Tokens: primary=#db2777, secondary=#2563eb, success=#16A34A, warning=#D97706, danger=#DC2626, surface=#FFFFFF, text=#111827
Spacing scale: 4/8/12/16/24/32

Accessibility

WCAG 2.2 AA, keyboard-first interactions, visible focus states

Writing Tone

concise, confident, helpful

Rules: Do

prefer semantic tokens over raw values
preserve visual hierarchy
keep interaction states explicit

Rules: Don't

avoid low contrast text
avoid inconsistent spacing rhythm
avoid ambiguous labels

Expected Behavior

Follow the foundations first, then component consistency.
When uncertain, prioritize accessibility and clarity over novelty.
Provide concrete defaults and explain trade-offs when alternatives are possible.
Keep guidance opinionated, concise, and implementation-focused.

Guideline Authoring Workflow

Track record

Benchmark

16 / 22

test cases passed, vs 6 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/1/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

bergside / awesome-design-skills

skills/expressive/SKILL.md

View on GitHub ↗

License MITImported 8/1/2026Version v1

Other skills for the same job

Published skills whose descriptions closely match this one, with their headline benchmark lift.

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Expressive Design System Skill (Universal)

Mission

Brand

Style Foundations

Accessibility

Writing Tone

Rules: Do

Rules: Don't

Expected Behavior

Guideline Authoring Workflow

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

Related skills