Web Artifacts Builder
anthropics/skills
Builds multi-component claude.ai HTML artifacts as a small React, TypeScript and Tailwind project, then bundles it into one shareable HTML file.
Apply the Von Restorff Effect — the element that differs from its neighbours is the one remembered.
Install Von Restorff Effect
$ npx skills add Owl-Listener/designer-skills --skill von-restorff-effect -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install Owl-Listener/designer-skills von-restorff-effect --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/ui-design/skills/von-restorff-effect .claude/skills/von-restorff-effect && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "von-restorff-effect" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/ui-design/skills/von-restorff-effect into .claude/skills/von-restorff-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "von-restorff-effect", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/Owl-Listener/designer-skills/tree/main/ui-design/skills/von-restorff-effectType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add Owl-Listener/designer-skills --skill von-restorff-effect -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install Owl-Listener/designer-skills von-restorff-effect --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/ui-design/skills/von-restorff-effect .agents/skills/von-restorff-effect && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "von-restorff-effect" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/ui-design/skills/von-restorff-effect into .agents/skills/von-restorff-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "von-restorff-effect", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Owl-Listener/designer-skills --skill von-restorff-effect -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install Owl-Listener/designer-skills von-restorff-effect --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/ui-design/skills/von-restorff-effect .cursor/skills/von-restorff-effect && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "von-restorff-effect" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/ui-design/skills/von-restorff-effect into .cursor/skills/von-restorff-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "von-restorff-effect", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/Owl-Listener/designer-skills.git --path ui-design/skills/von-restorff-effect--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add Owl-Listener/designer-skills --skill von-restorff-effect -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install Owl-Listener/designer-skills von-restorff-effect --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/ui-design/skills/von-restorff-effect .gemini/skills/von-restorff-effect && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "von-restorff-effect" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/ui-design/skills/von-restorff-effect into .gemini/skills/von-restorff-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "von-restorff-effect", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install Owl-Listener/designer-skills von-restorff-effectInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add Owl-Listener/designer-skills --skill von-restorff-effect -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/ui-design/skills/von-restorff-effect .github/skills/von-restorff-effect && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "von-restorff-effect" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/ui-design/skills/von-restorff-effect into .github/skills/von-restorff-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "von-restorff-effect", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add Owl-Listener/designer-skills --skill von-restorff-effect -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install Owl-Listener/designer-skills von-restorff-effect --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/Owl-Listener/designer-skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/ui-design/skills/von-restorff-effect .opencode/skills/von-restorff-effect && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "von-restorff-effect" agent skill from https://github.com/Owl-Listener/designer-skills/tree/main/ui-design/skills/von-restorff-effect into .opencode/skills/von-restorff-effect/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "von-restorff-effect", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
von-restorff-effect- GitHub stars
- 2.9k
- Used in
- 1 other repo
- Token cost
- ~596 tokens
- SKILL.md length
- 309 words
- Files
- 1
- Skills in repo
- 107
- Repo updated
- First seen
- Licence
- MIT
At a glance
Apply the Von Restorff Effect — the element that differs from its neighbours is the one remembered.
- A single action must dominate
- SKILL.md covers What You Do, The Principle, Key Distinction and Applications, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Von Restorff Effect is an agent skill from Owl-Listener/designer-skills. Apply the Von Restorff Effect — the element that differs from its neighbours is the one remembered. Use when a single action must dominate. For overall ordering rather than single-element emphasis, use visual-hierarchy.
Its SKILL.md is about 600 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Frontend & Design. The repository describes itself as: Designer Skills Collection: agentic skills, commands, and plugins for design — from research to systems, UI, interaction, and delivery. The licence is MIT.
When your agent uses it
- A single action must dominate
Example prompts
- “/von-restorff-effect”
What it can do on your machine
Read from SKILL.md and the folder at commit 9a6930c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Von Restorff Effect loads about 596 tokens when it runs. Until then it costs about 60 tokens; SKILL.md has 309 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from Owl-Listener/designer-skills at commit 9a6930c, republished under its MIT licence (© Owl-Listener). 309 words, ~596 tokens.
Download SKILL.mdSave it as
.claude/skills/von-restorff-effect/SKILL.md (or your agent's skills folder).- name
- von-restorff-effect
- description
- Apply the Von Restorff Effect — the element that differs from its neighbours is the one remembered. Use when a single action must dominate. For overall ordering rather than single-element emphasis, use `visual-hierarchy`.
Von Restorff Effect
You are an expert in visual differentiation and its effect on memory and attention.
What You Do
You apply the Von Restorff Effect (also called the Isolation Effect) to ensure the one element that most needs attention is visually distinct — and that distinctiveness is earned, not scattered.
The Principle
An item that differs from its surroundings is more likely to be noticed and remembered. Visual homogeneity is the baseline; deviation draws the eye. This is why:
- A single filled button in a row of ghost buttons captures attention
- A highlighted row in a table reads as the most important item
- A price, CTA, or warning stands out when surrounded by lower-contrast elements
Key Distinction
The effect depends on contrast with context. If everything is differentiated, nothing is. The principle only works when:
- One (or very few) items deviate
- Surrounding items are visually consistent with each other
- The deviation is meaningful, not decorative
Applications
| Context | How to Apply |
|---|---|
| Call to action | One filled/primary button; all others ghost or text |
| Pricing | Highlight one recommended tier; reduce visual weight of others |
| Navigation | Active state distinctly different from inactive |
| Data tables | Use row highlight or bold type for the key record |
| Notifications | Badge or accent color reserved for actionable items only |
| Onboarding | One step or card at a time, visually isolated from upcoming steps |
What to Avoid
- Applying the effect to multiple competing elements (defeats the purpose)
- Using it decoratively — random pops of color train users to ignore them
- Relying solely on color — pair with shape, size, or weight for accessibility
Best Practices
- Decide in advance what the single most important element per screen or section is
- Audit for "isolation inflation" — every new feature requesting highlight treatment degrades the system
- Ensure the differentiated element is distinct on all states: hover, focus, disabled
- Test with colorblindness simulation; differentiation should survive grayscale
© Owl-Listener, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in ui-design/skills/von-restorff-effect of Owl-Listener/designer-skills.
Open the folder on GitHubat commit 9a6930c
Used in 1 other repository
We found 2 copies of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in Owl-Listener/designer-skills, which our catalogue first saw on October 7, 2026.
Compare with similar skills
Von Restorff Effect next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Von Restorff Effect this skillOwl-Listener/designer-skills | 2.9k | 1 repos | ~596 | Automated safety check: Pass | MIT | |
| Web Artifacts Builderanthropics/skills | 180k | 40 repos | ~769 | Automated safety check: Pass | Apache-2.0 | |
| React Doctormakeplane/plane | 61k | 12 repos | ~657 | Automated safety check: Pass | AGPL-3.0 | |
| Impeccablebestofjs/bestofjs | 3.1k | 26 repos | ~2.6k | Automated safety check: Pass | MIT | |
| Figma Design System Builderwarpdotdev/warp | 65k | 2 repos | ~4.4k | Automated safety check: Pass | AGPL-3.0 | |
| Web Interface Guidelines Reviewervercel-labs/openreview | 1.7k | 97 repos | ~308 | Automated safety check: Pass | None |
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Related
Categories
Questions about Von Restorff Effect
What does Von Restorff Effect do?
Apply the Von Restorff Effect — the element that differs from its neighbours is the one remembered. Von Restorff Effect is an agent skill from Owl-Listener/designer-skills. Apply the Von Restorff Effect — the element that differs from its neighbours is the one remembered.
When should I use Von Restorff Effect?
Von Restorff Effect fits situations like: A single action must dominate.
How do I install Von Restorff Effect in Claude Code?
Run `npx skills add Owl-Listener/designer-skills --skill von-restorff-effect -a claude-code`. Or copy the skill folder (ui-design/skills/von-restorff-effect in Owl-Listener/designer-skills) into .claude/skills/von-restorff-effect in your project. Claude Code loads it when a task matches its description.
How do I install Von Restorff Effect in Codex?
Run `npx skills add Owl-Listener/designer-skills --skill von-restorff-effect -a codex`. Or copy the skill folder (ui-design/skills/von-restorff-effect in Owl-Listener/designer-skills) into .agents/skills/von-restorff-effect in your project. Codex loads it when a task matches its description.
Can I use Von Restorff Effect in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Owl-Listener/designer-skills --skill von-restorff-effect -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/von-restorff-effect, .gemini/skills/von-restorff-effect, .github/skills/von-restorff-effect and .opencode/skills/von-restorff-effect in your project.
What does Von Restorff Effect need to run?
SKILL.md names no scripts, command-line tools or credentials: Von Restorff Effect is instructions for the agent only.
Does Von Restorff Effect access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Von Restorff Effect safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Von Restorff Effect use?
Von Restorff Effect is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Von Restorff Effect use?
About 596 tokens (SKILL.md is roughly 2.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Von Restorff Effect?
Skills that share tags, products or a category with Von Restorff Effect: Web Artifacts Builder (anthropics/skills, 180k stars), React Doctor (makeplane/plane, 61k stars), Impeccable (bestofjs/bestofjs, 3.1k stars) and Figma Design System Builder (warpdotdev/warp, 65k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Von Restorff Effect?
Owl-Listener (a GitHub user) maintains it in Owl-Listener/designer-skills, which has 2,871 GitHub stars. The repository holds 107 skills in this directory. The repository was last updated on September 5, 2026.
Source: Owl-Listener/designer-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.