Diagram Design Open-Source Agent Skill Launches for Multi-Platform AI Coding Assistants

Overview

An open-source project titled diagram-design has been released by LittleMight to help AI coding agents generate self-contained HTML and SVG diagrams. The skill supports 45 diagram types, aiming to produce styled graphics that align with specific brand palettes and typography without relying on external image dependencies or heavy JavaScript frameworks.

Key Features and Capabilities

• Self-Contained Output: Generates a single `.html` file containing inline SVG that can be opened directly in any modern web browser.
• Brand Matching: Automatically samples brand colors, paper backgrounds, and font families from a provided website URL to match existing design identities.
• Import Support: Can parse and redraw existing files from Mermaid, draw.io, and Excalidraw formats.
• Multi-Agent Compatibility: Operates across various AI assistant hosts, including Claude Code, GitHub Copilot, Codex, Cursor, Qoder, Pi, Factory Droid, and other agent skill-compatible environments.

Design Philosophy

The project moves away from generic rounded boxes and heavy shadows, relying instead on a strict 4-pixel layout grid, 1px hairlines, and restrained accent colors to highlight specific focal points. It includes support for light, dark, and full-editorial visual variants.

Verification and Access

Users can inspect the official repository, review privacy documentation, and verify installation steps directly on the public GitHub project hosted under `cathrynlavery/diagram-design`. Official builds are distributed exclusively through this repository.