🧱 Mosaic: Mantle Smart Contract Builder

🌟 Overview

Mosaic is an innovative smart contract development platform specifically designed for the Mantle blockchain ecosystem. It offers two powerful approaches to contract creation: a visual drag-and-drop builder and an AI-powered contract generator. Whether you prefer hands-on composition or AI assistance, Mosaic empowers developers and blockchain enthusiasts to rapidly create and deploy optimized smart contracts.

Smart Contract Repo:  https://github.com/harishkotra/mosaic-registry

App Repo:  https://github.com/harishkotra/mosaic

✨ Key Features

Visual Contract Builder

• Intuitive drag-and-drop interface for composing contracts
• Pre-built, Mantle-optimized contract modules
• Real-time Solidity code generation
• Component-based architecture for maximum reusability

AI Contract Generator

• Powered by Llama 3.2 8B parameter model via Gaia
• Natural language contract generation
• Context-aware code completion
• Mantle-specific optimizations and best practices

Example AI Prompts

Here are some effective prompts to help you get started with the AI generator:

"Create an ERC20 token contract for a community rewards system with:
- Monthly distribution caps
- Vesting schedules for team tokens
- Anti-whale mechanisms limiting large transfers"

"Design a meta-transaction handler for my DeFi protocol that:
- Supports percentage-based gas fee delegation
- Includes signature verification
- Has role-based permissions for gas sponsors"

"Generate a bridge adapter contract that:
- Handles ERC20 token transfers between Ethereum and Mantle
- Includes emergency pause functionality
- Implements a challenge period for withdrawals"

Supported Contract Components

Both the visual builder and AI generator support:

• Meta Transaction Handlers
• ERC20 Token Implementations
• Role-Based Access Control
• Bridge Adapters
• Gas Optimization Utilities
• NFT Contract Templates

Deployment Options

• One-click deployment to Mantle Mainnet
• Streamlined testing on Mantle Sepolia Testnet
• Seamless MetaMask integration
• Built-in gas estimation and optimization

🚀 Quick Start

Prerequisites

• Node.js (v18+ recommended)
• MetaMask Browser Extension
• MNT Tokens for deployment

Installation

Clone the repository

git clone https://github.com/harishkotra/mosaic.git
cd mosaic

Install dependencies

npm install

Run the development server

npm run dev

Open http://localhost:3000 in your browser

🛠 Technology Stack

Frontend:

• Next.js 15+
• React with TypeScript
• Tailwind CSS
• Shadcn UI Components
• React DnD (Drag and Drop)

Smart Contract Integration:

• Ethers.js
• Web3Modal
• MetaMask SDK

AI Integration:

• Gaia API Client
• Llama 3.2 8B parameter model
• Stream-based response handling

📦 Smart Contract Components

Meta Transaction

• Enable gasless transactions with advanced Mantle v2 support
• Configurable fee delegation ratios
• Multi-signature validation options

ERC20 Token

• Gas-optimized token implementation for Mantle
• Built-in hooks for extensions
• Comprehensive security features

Access Control

• Role-based permission management
• Time-locked role transitions
• Emergency admin functions

Bridge Adapter

• Seamless L1-L2 token transfers
• State verification and challenge periods
• Configurable bridge parameters

Gas Optimizer

• Dynamic fee adjustment mechanisms
• Batch transaction support
• Priority fee management

🤖 AI Generator Features

The AI Generator leverages the Llama 3.2 8B parameter model to provide:

Code Generation:

• Natural language to Solidity conversion
• Mantle-specific optimizations
• Best practice implementations

Context Awareness:

• Understanding of contract requirements
• Integration with existing code
• Compatibility checking

Learning Resources:

• Example prompt library
• Code explanation generation
• Gas optimization suggestions

🔒 Security

Security Measures:

• Pre-audited contract templates
• Automated vulnerability scanning
• Role-based access control
• Mantle architecture compatibility

Best Practices:

• Gas optimization patterns
• Secure coding guidelines
• Transaction safety checks

🌐 Roadmap

Upcoming Features:

• Advanced AI prompt templates
• Multi-contract system generation
• Contract verification automation
• Integration testing framework
• Enhanced gas estimation
• AI-powered security analysis
• Custom component creation tools