BMBrick Photo-to-LEGO-Mosaic Skill

Convert any local photo into a LEGO-style brick mosaic preview — directly from your AI agent.

`@bmbrick/photo-to-lego-mosaic-skill` is an MCP server that lets Claude, Cursor, Windsurf, and other AI agents transform local images into high-fidelity 3D brick mosaics using the same canonical engine as bmbrick.com.

> Renamed from `@bmbrick/agent-mosaic-skill` (the old name still works but is deprecated — please migrate to the new name for future updates).

Visual Previews

Generated with the `generate_lego_mosaic` tool (3D render mode):

Square Tiles (`square_1x1`)

Round Tiles (`round_1x1`)

For more case studies and mosaic examples, check out our Pinterest Showcase.

Quick Start

npx -y @bmbrick/photo-to-lego-mosaic-skill

MCP Client Configuration

Claude Desktop (`claude_desktop_config.json`):

{
  "mcpServers": {
    "lego-mosaic": {
      "command": "npx",
      "args": ["-y", "@bmbrick/photo-to-lego-mosaic-skill"]
    }
  }
}

Cursor (`.cursor/mcp.json`):

{
  "mcpServers": {
    "lego-mosaic": {
      "command": "npx",
      "args": ["-y", "@bmbrick/photo-to-lego-mosaic-skill"]
    }
  }
}

Tool: `generate_lego_mosaic`

Returns: a local watermarked PNG preview + a link to unlock the full project at bmbrick.com.

Unlock Full Project

The preview is watermarked and intended for creative exploration. To get the complete deliverables — HD unwatermarked mosaic, brick-by-brick PDF instructions, parts list with ordering links, and CSV/XML placement matrices — visit bmbrick.com.

Features

• Same Engine as bmbrick.com — canonical color science, quantization, and 3D rendering pipeline
• Local & Private — all processing happens on your machine via Node.js
• Agent-Ready — ships with a `SKILL.md` for seamless agent workflow integration
• 3D Render Mode — InstancedMesh PBR rendering with realistic brick studs

Engineering Docs

Deep technical reference for the color quantization pipeline that powers this skill and bmbrick.com:

• Color quantization pipeline: principles, history, and lessons — current architecture, architectural decisions, verified principles, failed experiments from 25+ versions of iteration, and parameter sensitivity reference.
  • 🇬🇧 English
  • 🇨🇳 中文

Migrating from `@bmbrick/agent-mosaic-skill`

If you were using the old name, the migration is one search/replace:

1. Package name: `@bmbrick/agent-mosaic-skill` → `@bmbrick/photo-to-lego-mosaic-skill`

2. MCP tool name (in your agent's tool list): `generate_bmbrick_mosaic` → `generate_lego_mosaic`

3. Binary name (rare): `agent-mosaic-skill` → `photo-to-lego-mosaic-skill`

The tool parameters (imagePath, columns, rows, etc.) and return shape are unchanged.

Development

License

Dual-licensed:

• MIT — MCP wrapper, `skill/` directory, agent integration surface
• Restricted — `dist/` engine files: free to use and distribute as-is, but no de-obfuscation, reverse engineering, or redistribution of modified versions

See LICENSE for full terms.