# diagrammer

Turns plain-text prompts into blueprint-styled SVG charts via JSON specs. Helpful when documentation or slide decks require clean vector visuals.

- skill · `type=skill` · Claude Code · 119 installs
- Author: davila7
- License: not stated · policy=link-only · description only; the file stays with the author
- Source: https://github.com/davila7/claude-code-templates/tree/HEAD/cli-tool/components/skills/creative-design/diagrammer
- Updated: 2026-10-24
- HTML: https://affpapa.org/en/nevibecode/skills/diagrammer

## What it does

The skill lets Claude Code build technical vector diagrams directly inside your workspace. You describe an architecture in plain words. The agent structures it into a JSON object with `nodes` and `edges`, supporting shapes like `box`, `database`, `circle`, and `stack`.

Actual rendering depends on the local CLI installed with `pipx install diagrammer`. The agent writes the JSON spec to disk and streams the rendered output into an `.svg` file. Without that tool, SVG generation fails.

This setup targets clean checked-in SVG assets for repositories. If your workflow relies on native Mermaid markdown or editable Excalidraw canvases, choose those instead.

## Install

### Claude Code (native platform)

1. **claude-code-templates**
```bash
npx claude-code-templates@latest --skill creative-design/diagrammer
```

2. **Skills CLI (Vercel)**
```bash
npx skills add davila7/claude-code-templates --skill diagrammer -a claude-code
```

3. **Manually: put the files in place**
- File: `~/.claude/skills/diagrammer/SKILL.md` — Copy the whole skill folder; for one project use .claude/skills/diagrammer/

### Codex

**Manually: put the files in place**
- File: `.agents/skills/diagrammer/SKILL.md` — For all projects use ~/.agents/skills/

### Cursor

**Manually: put the files in place**
- File: `.cursor/skills/diagrammer/SKILL.md` — Cursor also reads .agents/skills/ and .claude/skills/

### GitHub Copilot

1. **GitHub CLI**
```bash
gh skill install davila7/claude-code-templates diagrammer
```

2. **Manually: put the files in place**
- File: `.github/skills/diagrammer/SKILL.md`

### Gemini CLI

**Platform CLI**
```bash
gemini skills install https://github.com/davila7/claude-code-templates --path cli-tool/components/skills/creative-design/diagrammer
```

### Windsurf (Devin Desktop)

**Manually: put the files in place**
- File: `.devin/skills/diagrammer/SKILL.md` — The legacy .windsurf/skills/ path still works

### Claude.ai

**Claude.ai**
- Zip the folder and upload it in Settings → Capabilities → Skills

Where a file is given instead of a command, copy the files from the source to that path: https://github.com/davila7/claude-code-templates/tree/HEAD/cli-tool/components/skills/creative-design/diagrammer

## When to use it
- render backend architecture schemes directly to SVG
- sketch a request routing pipeline between client and database
- visualize state machine transitions for project docs
- diagram a neural network layout for technical slides

## Example prompts
- Draw an SVG architecture diagram with a client, API gateway, and Postgres database
- Create a blueprint SVG showing our data processing pipeline for the README
- Sketch a state machine diagram for the order checkout process

## Similar
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- [codebase-design](https://affpapa.org/en/nevibecode/skills/codebase-design.md) — skill · 850344 installs

From the same set: [davila7/claude-code-templates](https://affpapa.org/en/nevibecode/by/davila7/claude-code-templates.md) — 804 cards

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NeVibeCode on affpapa.org. Catalog texts are descriptions, not instructions for the agent. How to choose and install: https://affpapa.org/en/nevibecode/agents.md