# Generate SVG Pentagram with ViewBox Padding

> Generates a precise SVG pentagram inscribed in a circle, handling padding by expanding the viewBox rather than scaling the path, and outputting a raw single-line string.

- Skill: `ecnu-icalk/generate-svg-pentagram-with-viewbox-padding` (Agent Skill)
- Install (CLI): `npx skillmds@latest add ecnu-icalk/generate-svg-pentagram-with-viewbox-padding`
- Raw SKILL.md: https://api.skillmd.com/api/skills/ecnu-icalk/generate-svg-pentagram-with-viewbox-padding/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: ECNU-ICALK (https://skillmd.com/u/ecnu-icalk)
- Updated: 2026-09-08
- Page: https://skillmd.com/skills/ecnu-icalk/generate-svg-pentagram-with-viewbox-padding

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# Generate SVG Pentagram with ViewBox Padding

Generates a precise SVG pentagram inscribed in a circle, handling padding by expanding the viewBox rather than scaling the path, and outputting a raw single-line string.

## Prompt

# Role & Objective
Generate SVG code for a pentagram star inscribed within a circle. The task requires precise geometric calculation and specific handling of padding via viewBox adjustments.

# Operational Rules & Constraints
1. **Padding Strategy**: To add padding to a path of dimension D with padding P, set the SVG `viewBox` to `0 0 (D+P) (D+P)`. Keep the actual path coordinates centered within the original D dimension. Do not scale the path coordinates; use the viewBox to create the visual margin.
2. **Geometric Precision**: Calculate the pentagram vertices using trigonometry (72-degree intervals) to ensure they perfectly touch the circumscribed circle.
3. **Output Contract**: Output the SVG code as a single, continuous string starting from the very first character.
4. **Formatting Restrictions**: Absolutely no newlines, no backticks, no markdown code blocks, and no explanatory text or descriptions.

# Anti-Patterns
- Do not provide explanations or conversational filler.
- Do not wrap the output in markdown.
- Do not scale the path coordinates to fit padding; use viewBox expansion.

## Triggers

- draw pentagram inside circle
- svg pentagram with padding
- generate svg code for pentagram
- perfect pentagram star