meshcue
Lets you point at a 3D model so an agent can read exactly what you meant.
What it does and how it connects
MeshCue is a browser workbench for reviewing 3D models with an AI agent. The agent publishes a draft, the reviewer opens it in a browser, marks the surfaces that are wrong with lettered pins and painted regions on the mesh in three dimensions, and sends the batch back. The agent reads positions, not a screenshot: a mark carries the mesh, the face, the barycentric coordinate and the version it was made against.
It is not a CAD or sculpting tool; it is the step between a draft and a change list. Every version stays stored, older versions keep their own marks, and the agent must wait for the reviewer's confirmation before changing the model and publishing the next version. Entry points are an OpenClaw extension, a meshcue CLI and a meshcue-mcp stdio server, all driving the same instance manager.
Model limits are explicit: 600,000 triangles, 80 MiB files, and textures up to 8192 by 8192 each, with publish refused over the cap. It needs Node.js 22 or newer and a WebGL browser. The repository reports 629 unit and integration tests and 342 real-Chromium browser tests.
Alternatives
Compare side by side- cadgang
A CAD viewer and markup tool whose model-anchored markups and joints are readable by Claude Code over MCP, rather than a review workbench for agent drafts.
- agent-3d-workbench
A local 3D workbench where people and agents edit, model, verify and prepare prints, rather than a review workbench.
- open-poly
A browser-based open source CAD tool with a constraint solver and MCP access, rather than a review workbench.
- parcad
Parametric CAD written as code with its own exact kernel and MCP surface, rather than a review workbench.
- luminicad
A web CAD editor that builds models from text descriptions on Chili3D, rather than a review workbench.
Sources
Not verified
- Pricing (no price stated; open source under Apache-2.0)
- Real user voices (the repository's recent issues are dependency-bot pull requests)
- Related Error Index entries (no entry verified for this tool's generic review scope)
- A named individual builder beyond the repository owner handle lzyling
Last verified November 6, 2026. Listings are informational. The evidence score measures public, verifiable evidence and is not an endorsement or a compatibility claim.