Agent Skill

Design Brief skill

design-briefnexu-io/open-designplugins/_official/examples/design-brief/SKILL.md

Parse a structured design brief written in I-Lang protocol format into a concrete design spec. Eliminates ambiguity from vague requests like "make it professional" by requiring explicit dimensions: palette, typography, layout, mood, density, and constraints. Trigger keywords: "design brief", "create a design brief", "ilang brief", "structured brief".

103kApache-2.0

always on

76 tokname + description

once used

3,263 tokSKILL.md body

bundled files

111 KB

repo stars

103kGitHub

Install the Design Brief skill

Skills CLI (Claude Code, Codex, Cursor and others)

npx skills add https://github.com/nexu-io/open-design --skill design-brief

Claude Code, by hand (all projects)

git clone --depth 1 https://github.com/nexu-io/open-design.git /tmp/open-design
mkdir -p ~/.claude/skills
cp -R /tmp/open-design/plugins/_official/examples/design-brief ~/.claude/skills/design-brief

For one project only, copy the folder into .claude/skills/ in that project instead. The agent picks it up when a task matches its description.

What it costs your context

Agent Skills load in three steps. Tokens counted with the o200k tokenizer; your model's count will differ a little.

When	What loads	Cost
Every session	Name and description	76 tok
When the agent uses it	The SKILL.md instructions	3,263 tok
Only if opened	1 bundled files (11 KB)	varies

Until it is used, design-brief costs about 18× less than the median MCP server we measured (1,362 tokens on every turn). Installing all 150 skills from nexu-io/open-design would load 9,514 tokens of descriptions. Skills vs MCP study

Checks

Our checks found nothing to flag: it follows the Agent Skills specification's naming and size guidelines and doesn't pipe downloads into a shell.

Checked 2026-10-22 · method

What's inside

The headings of its SKILL.md. Read the full file on GitHub.

Design Brief Skill
Background
1. Accept input
Option A: I-Lang structured brief
Option B: Natural language
Natural language → I-Lang mapping
2. Validate dimensions
2.1 Symbolic → concrete token resolution
2.2 Default resolution rules
3. Generate DESIGN.md
4. Generate brief-preview.html
5. Report unspecified dimensions

More skills from nexu-io/open-design

All skills in this repo

article-magazinenexu-io/open-design
Huashu / huashu-md-html-inspired magazine article layout for turning Markdown or notes into a polished long-form HTML essay.
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aster-ateliernexu-io/open-design
Use this template when the user wants an artistic creative-studio website with classical imagery, cobalt skies, elegant serif typography and cinematic scrolling.
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audio-jinglenexu-io/open-design
Audio generation skill — jingles, beds, voiceover, and sound effects. Routes music requests to Suno V5 / Udio / Lyria, speech to MiniMax TTS / FishAudio / ElevenLabs V3, and SFX to ElevenLabs SFX or AudioCraft. Output is one MP3/WAV file saved to the project folder.
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blog-postnexu-io/open-design
A long-form article / blog post — masthead, hero image placeholder, article body with figures and pull quotes, author byline, related posts. Use when the brief asks for "blog", "article", "post", "essay", or "case study".
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build-testnexu-io/open-design
Run the project's build / typecheck / lint / test commands and emit the build.passing + tests.passing signals devloop convergence reads.
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card-twitternexu-io/open-design
Twitter quote or data card designed to pair with a post.
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card-xiaohongshunexu-io/open-design
Xiaohongshu-style knowledge cards, arranged as a swipeable multi-card carousel.
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clinical-case-reportnexu-io/open-design
Structured medical case presentation for clinical rounds, conferences, and documentation. Generates SOAP-format or narrative case reports with physiologically accurate vitals, labs, and evidence-based plans. Use when the brief mentions "case report", "case presentation", "SOAP note", "clinical case", "ward rounds", "case summary", or "patient presentation".
103k73 tok idle · 1,806 in use