Show HN: A 3D mesh playground for coding agents (three.js + manifold-3d)

Category: devtools

Tags: 3d-mesh, coding-agents, mcp, three.js, manifold-3d

Score: 6.3/10 (Innovation: 7, Technical: 6, Documentation: 3, Utility: 6)

A browser-based 3D mesh playground that lets coding agents edit geometry via MCP or in-browser, using three.js and manifold-3d for boolean/mesh operations. It provides a render_preview tool so agents can iteratively inspect and fix their 3D creations, demonstrated by Gemini reconstructing a canal scene from a photo.

Target audience: AI/3D developers, coding-agent builders, graphics engineers

Repository: https://sketchagent.dev/s/yfYU6LhT

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