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Stitch Design Taste — Semantic Design System Skill · sediman-agent | DecimalAI

design mediaby sediman-agent

Stitch Design Taste — Semantic Design System Skill

sediman-agent/stitch-design-taste

Source sediman-agent/openskynet ↗License NOASSERTION

Semantic Design System Skill for Google Stitch. Generates agent-friendly DESIGN.md files that enforce premium, anti-generic UI standards — strict typography, calibrated color, asymmetric layouts, perpetual micro-motion, and hardware-accelerated performance.

SkillScore77Maintained

Automatic

Design & UX Review pack

Last verified 8/20/2026

What it changes

Passed 17 of 22 test cases with the skill, and 3 of 22 without it.

Without skill14%

With skill77%

Checks it passed that the model alone missed

The output forbids pure black hex code #000000.
The output explicitly forbids custom mouse cursors.
The output explicitly forbids overlapping elements.

and 18 more in the full report

14 fixed3 passed either way5 still failing0 broke

Pass-rate lift: +64 pp
Tokens: +51%
Agent turns: 0%
Response time: -8%

Model gemini-3.6-flashMeasured 8/20/2026v117 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/sediman-agent-stitch-design-taste/SKILL.md https://app.decimal.ai/s/sediman-agent-stitch-design-taste/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add sediman-agent-stitch-design-taste, 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/sediman-agent-stitch-design-taste/ and pins it in .decimal/skills.lock

decimalai skills add sediman-agent-stitch-design-taste

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

curl -fsSL --create-dirs -o .claude/skills/sediman-agent-stitch-design-taste/SKILL.md https://app.decimal.ai/s/sediman-agent-stitch-design-taste/SKILL.md

Raw file: /s/sediman-agent-stitch-design-taste/SKILL.md ↗ · machine-readable summary at /s/sediman-agent-stitch-design-taste.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 14 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 14

Prompt

Can you write a semantic DESIGN.md specification file for an online architectural magazine and archival portfolio site? I plan to feed this into Google Stitch for screen generation. Format the file with defined sections detailing the atmospheric vibe, exact color roles with hex codes, font pairing rules, hero section presentation strategy, component styling specifications, responsive layout principles, spring-based motion guidelines, and AI design clichés to strictly ban.

What was checked, without and with the skill
Checked	Without skill	With skill
The output specifies inline image typography for the hero section.	Missed	Passed
The output forbids pure black hex color #000000.	Passed	Passed
The output excludes generic serif fonts like Georgia.	Missed	Passed

case-02 · gemini-3.6-flash · 8/20/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md179 linessingle file

Stitch Design Taste — Semantic Design System Skill

Overview

This skill generates DESIGN.md files optimized for Google Stitch screen generation. It translates the battle-tested anti-slop frontend engineering directives into Stitch's native semantic design language — descriptive, natural-language rules paired with precise values that Stitch's AI agent can interpret to produce premium, non-generic interfaces.

The generated DESIGN.md serves as the single source of truth for prompting Stitch to generate new screens that align with a curated, high-agency design language. Stitch interprets design through "Visual Descriptions" supported by specific color values, typography specs, and component behaviors.

Prerequisites

Access to Google Stitch via labs.google.com/stitch
Optionally: Stitch MCP Server for programmatic integration with Cursor, Antigravity, or Gemini CLI

The Goal

Generate a DESIGN.md file that encodes:

Visual atmosphere — the mood, density, and design philosophy
Color calibration — neutrals, accents, and banned patterns with hex codes
Typographic architecture — font stacks, scale hierarchy, and anti-patterns
Component behaviors — buttons, cards, inputs with interaction states
Layout principles — grid systems, spacing philosophy, responsive strategy
Motion philosophy — animation engine specs, spring physics, perpetual micro-interactions
Anti-patterns — explicit list of banned AI design clichés

Analysis & Synthesis Instructions

1. Define the Atmosphere

Evaluate the target project's intent. Use evocative adjectives from the taste spectrum:

Density: "Art Gallery Airy" (1–3) → "Daily App Balanced" (4–7) → "Cockpit Dense" (8–10)
Variance: "Predictable Symmetric" (1–3) → "Offset Asymmetric" (4–7) → "Artsy Chaotic" (8–10)
Motion: "Static Restrained" (1–3) → "Fluid CSS" (4–7) → "Cinematic Choreography" (8–10)

Default baseline: Variance 8, Motion 6, Density 4. Adapt dynamically based on user's vibe description.

2. Map the Color Palette

For each color provide: Descriptive Name + Hex Code + Functional Role.

Mandatory constraints:

Maximum 1 accent color. Saturation below 80%
The "AI Purple/Blue Neon" aesthetic is strictly BANNED — no purple button glows, no neon gradients
Use absolute neutral bases (Zinc/Slate) with high-contrast singular accents
Stick to one palette for the entire output — no warm/cool gray fluctuation
Never use pure black (#000000) — use Off-Black, Zinc-950, or Charcoal

Track record

Benchmark

17 / 22

test cases passed, vs 3 / 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 — 8/3/2026

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

sediman-agent / openskynet

skills/taste-skill/skills/stitch-skill/SKILL.md

View on GitHub ↗

License NOASSERTIONImported 8/3/2026Version v1

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Ready to supercharge your AI agents?

See it in action

What's inside

Stitch Design Taste — Semantic Design System Skill

Overview

Prerequisites

The Goal

Analysis & Synthesis Instructions

1. Define the Atmosphere

2. Map the Color Palette

Track record

Benchmark

Adoption

SkillSafety

Source

Other skills for the same job

Related skills