# Add Polygon

> Add a custom polygon to an existing SVG file

- Skill: `brxs/add-polygon` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add brxs/add-polygon`
- Raw SKILL.md: https://api.skillmd.com/api/skills/brxs/add-polygon/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: brxs (https://skillmd.com/u/brxs)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/brxs/add-polygon

---


# Add Polygon

Adds a custom polygon with arbitrary vertices to an existing SVG file.

## Usage

```bash
node .claude/skills/add-polygon/index.js <svg-file> <points> <fill>
```

## Parameters

- `svg-file` - Path to the SVG file to modify
- `points` - Space-separated coordinates: "x1,y1 x2,y2 x3,y3 ..."
- `fill` - Fill color as hex (default: #E53935)

## Example

```bash
# Custom triangle
node .claude/skills/add-polygon/index.js output/art.svg "100,300 250,100 400,300" '#FDD835'

# Custom quadrilateral
node .claude/skills/add-polygon/index.js output/art.svg "100,100 400,150 350,300 50,250" '#1E88E5'
```