openpencil

The world's first open-source AI-native vector design tool and the first to feature concurrent Agent Teams. Design-as-Code. Turn prompts into UI directly on the live canvas. A modern alternative to Pencil.

The DeepSeek Harness plugin for OpenPencil — preview, inspect, and edit real .op documents inside a conversation.

LLM skill for designing with OpenPencil via the op CLI and MCP tools

Pure-Rust async runtime for LLM agents. Multi-provider (Anthropic/OpenAI/Ollama), tool-capable end-to-end, structured permissions, real MCP support, USD cost tracking, Files API, optional FS+search tool pack.

A Visual Design that ships with your code. Agents and humans work together on the same canvas, where every change is a diffable JSX stored in a .uidx file inside your repo. Built on OpenPencil and Skia, with MCP built in.

Staged MCP-first Agent Skill for Pencil / OpenPencil design orchestration, section-safe edits, audits, and fallback-aware workflows.

Scoop bucket for OpenPencil

Homebrew tap for OpenPencil

Redrob Design is a prompt-driven design editor that opens .fig and .pen files and designs by prompt.

Discover executable world representations for physical reasoning through agentic code generation.