D3 Visualization
benchflow-ai/skillsbench
Build deterministic, verifiable data visualizations with D3.js (v6).
Data visualization design based on Stanford CS448B. An agent skill from sundial-org/skills.
Install Cs448b Visualization
$ npx skills add sundial-org/skills --skill cs448b-visualization -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install sundial-org/skills cs448b-visualization --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/sundial-org/skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/visualization-skill .claude/skills/cs448b-visualization && 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 "cs448b-visualization" agent skill from https://github.com/sundial-org/skills/tree/main/skills/visualization-skill into .claude/skills/cs448b-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cs448b-visualization", 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/sundial-org/skills/tree/main/skills/visualization-skillType 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 sundial-org/skills --skill cs448b-visualization -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install sundial-org/skills cs448b-visualization --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sundial-org/skills.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/visualization-skill .agents/skills/cs448b-visualization && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "cs448b-visualization" agent skill from https://github.com/sundial-org/skills/tree/main/skills/visualization-skill into .agents/skills/cs448b-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cs448b-visualization", 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 sundial-org/skills --skill cs448b-visualization -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install sundial-org/skills cs448b-visualization --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sundial-org/skills.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/visualization-skill .cursor/skills/cs448b-visualization && 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 "cs448b-visualization" agent skill from https://github.com/sundial-org/skills/tree/main/skills/visualization-skill into .cursor/skills/cs448b-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cs448b-visualization", 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/sundial-org/skills.git --path skills/visualization-skill--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 sundial-org/skills --skill cs448b-visualization -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install sundial-org/skills cs448b-visualization --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sundial-org/skills.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/visualization-skill .gemini/skills/cs448b-visualization && 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 "cs448b-visualization" agent skill from https://github.com/sundial-org/skills/tree/main/skills/visualization-skill into .gemini/skills/cs448b-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cs448b-visualization", 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 sundial-org/skills cs448b-visualizationInstalls 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 sundial-org/skills --skill cs448b-visualization -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/sundial-org/skills.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/visualization-skill .github/skills/cs448b-visualization && 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 "cs448b-visualization" agent skill from https://github.com/sundial-org/skills/tree/main/skills/visualization-skill into .github/skills/cs448b-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cs448b-visualization", 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 sundial-org/skills --skill cs448b-visualization -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install sundial-org/skills cs448b-visualization --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/sundial-org/skills.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/visualization-skill .opencode/skills/cs448b-visualization && 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 "cs448b-visualization" agent skill from https://github.com/sundial-org/skills/tree/main/skills/visualization-skill into .opencode/skills/cs448b-visualization/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "cs448b-visualization", 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
cs448b-visualization- GitHub stars
- 152
- Token cost
- ~684 tokens
- SKILL.md length
- 257 words
- Files
- 7 (incl. references)
- Skills in repo
- 13
- Repo updated
- First seen
- Licence
- None found
At a glance
Data visualization design based on Stanford CS448B. An agent skill from sundial-org/skills.
- Works in 6 steps: Expressiveness - Does it show all the… → Effectiveness - Is the most important… → Zero baseline - Do bar charts start at… → …
- Choosing chart types
- SKILL.md covers When to Use Each Reference, Critique Checklist, Encoding Decision Order and Chart Selection Logic, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Cs448b Visualization is an agent skill from sundial-org/skills. Data visualization design based on Stanford CS448B. Use for: (1) choosing chart types, (2) selecting visual encodings, (3) critiquing visualizations, (4) building D3.js visualizations, (5) designing interactions/animations, (6) choosing colors, (7) visualizing networks, (8) visualizing text. Covers Bertin, Mackinlay, Cleveland & McGill.
Its SKILL.md is about 680 tokens, which your agent loads only when the skill is triggered. The skill folder holds 7 other files, including reference files (for example `references/chart-design.md`, `references/color.md` and `references/d3-patterns.md`).
It sits in Data & Analytics, covering Data visualization. It works with D3.js. The repository describes itself as: Claude Code Skills by Sundial.
When your agent uses it
- Choosing chart types
- Selecting visual encodings
- Critiquing visualizations
- Building D3.js visualizations
Example prompts
- “/cs448b-visualization”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Expressiveness - Does it show all the data? Only the data? No misleading elements?
- Effectiveness - Is the most important data on the most accurate encoding (position > length > area > color)?
- Zero baseline - Do bar charts start at zero?
- Accessibility - Works for colorblind viewers (~8% of males)?
- Data-ink ratio - Can any non-data elements be removed?
- Aspect ratio - Are line charts banked so slopes are ~45°?
What it can do on your machine
Read from SKILL.md and the folder at commit 5a3bf9f. 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
Cs448b Visualization loads about 684 tokens when it runs, and up to ~4.3k if it reads all its reference files. Until then it costs about 90 tokens; SKILL.md has 257 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
Without a licence we can't republish the file, so here is its outline and opening line. It has 257 words (~684 tokens).
- name
- cs448b-visualization
Files
SKILL.md and 6 other files (references) in skills/visualization-skill of sundial-org/skills.
- SKILL.md
- references/chart-design.md
- references/color.md
- references/d3-patterns.md
- references/encoding-perception.md
- references/interaction-animation.md
- references/networks-text.md
Open the folder on GitHubat commit 5a3bf9f
Compare with similar skills
Cs448b Visualization 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 |
|---|---|---|---|---|---|---|
| Cs448b Visualization this skillsundial-org/skills | 152 | — | ~684 | Automated safety check: Pass | None | |
| D3 Visualizationbenchflow-ai/skillsbench | 1.8k | — | ~1.5k | Automated safety check: Pass | Apache-2.0 | |
| D3 Vizcalesthio/OpenMontage | 65k | 3 repos | ~5.4k | Automated safety check: Pass | AGPL-3.0 | |
| Tufte Data Vizcaylent/tufte-data-viz | 223 | — | ~3.5k | Automated safety check: Pass | MIT | |
| Agent D3js SkillDokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI | 507 | — | ~753 | Automated safety check: Pass | Custom licence | |
| Advanced Data VisualizationHack23/cia | 239 | — | ~1.5k | Automated safety check: Pass | Apache-2.0 |
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Questions about Cs448b Visualization
What does Cs448b Visualization do?
Data visualization design based on Stanford CS448B. An agent skill from sundial-org/skills. Cs448b Visualization is an agent skill from sundial-org/skills. Data visualization design based on Stanford CS448B.
When should I use Cs448b Visualization?
Cs448b Visualization fits situations like: choosing chart types; selecting visual encodings; critiquing visualizations; building D3.js visualizations.
How do I install Cs448b Visualization in Claude Code?
Run `npx skills add sundial-org/skills --skill cs448b-visualization -a claude-code`. Or copy the skill folder (skills/visualization-skill in sundial-org/skills) into .claude/skills/cs448b-visualization in your project. Claude Code loads it when a task matches its description.
How do I install Cs448b Visualization in Codex?
Run `npx skills add sundial-org/skills --skill cs448b-visualization -a codex`. Or copy the skill folder (skills/visualization-skill in sundial-org/skills) into .agents/skills/cs448b-visualization in your project. Codex loads it when a task matches its description.
Can I use Cs448b Visualization 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 sundial-org/skills --skill cs448b-visualization -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/cs448b-visualization, .gemini/skills/cs448b-visualization, .github/skills/cs448b-visualization and .opencode/skills/cs448b-visualization in your project.
What does Cs448b Visualization need to run?
SKILL.md names no scripts, command-line tools or credentials: Cs448b Visualization is instructions for the agent only.
Does Cs448b Visualization 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 Cs448b Visualization 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 Cs448b Visualization use?
No licence was found for Cs448b Visualization or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.
How many tokens does Cs448b Visualization use?
About 684 tokens (SKILL.md is roughly 2.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 3.7k tokens, read only when the agent opens those files.
What are the alternatives to Cs448b Visualization?
Skills that share tags, products or a category with Cs448b Visualization: D3 Visualization (benchflow-ai/skillsbench, 1.8k stars), D3 Viz (calesthio/OpenMontage, 65k stars), Tufte Data Viz (caylent/tufte-data-viz, 223 stars) and Agent D3js Skill (Dokhacgiakhoa/Agent-Skills-4-Vibe-Coding-CLI, 507 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Cs448b Visualization?
sundial-org (a GitHub organization) maintains it in sundial-org/skills, which has 152 GitHub stars. The repository holds 13 skills in this directory. The repository was last updated on July 15, 2026.
Source: sundial-org/skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.