Architecture

14. System Architecture

14.1 High-Level Architecture

┌───────────────────────────────────────────────────────────────┐
│                        User Layer                             │
│  ┌──────────────────┐             ┌───────────────────┐       │
│  │ Repository Owners│             │   Contributors    │       │
│  └────────┬─────────┘             └─────────┬─────────┘       │
└───────────┼───────────────────────────────────┼───────────────┘
            │                                   │
            ▼                                   ▼
┌───────────────────────────────────────────────────────────────┐
│                    Frontend / Web3 Layer                      │
│  ┌─────────────────────────────────────────────────────────┐  │
│  │ Wallet Connection (MetaMask, WalletConnect, etc.)       │  │
│  └──────────────────┬──────────────────────────────────────┘  │
└─────────────────────┼────────────────────────────────────────┘


┌───────────────────────────────────────────────────────────────┐
│                 Smart Contract Layer (Creo)               │
│  ┌─────────────────────────────────────────────────────────┐  │
│  │ DecentralizedIssueTracker Smart Contract                │  │
│  │                                                         │  │
│  │ • Assigned contributor                                  │  │
│  │ • Stake amount                                          │  │
│  │ • Deadline                                              │  │
│  │ • Contributor history                                   │  │
│  │                                                         │  │
│  │ Key protections:                                        │  │
│  │ • Creator cannot assign issue to self                   │  │
│  │ • Contributors cannot take same issue multiple times    │  │
│  │ • Deadlines prevent stalling / abuse                    │  │
│  └───────────┬─────────────────────────────────────────────┘  │
└──────────────┼──────────────────────────────────────────────--┘


┌───────────────────────────────┐       ┌─────────────────────────────┐
│ GitHub API Integration        │       │ AI-Powered Review Layer     │
│ • Issue tracking              │       │                             │
│ • PR verification             │       │  ┌───────────────────────-┐ │
│ • Merge detection             │       │  │ ASI Main Agent (Router)│ │
│ • Reconciliation              │       │  └──────────┬────────────-┘ │
└───────────────────────────────┘       │             │               │
                                        ▼             ▼
                               ┌──────────────────────────---┐
                               │ Agent Marketplace / uAgents │
                               │ • Code Analyzer             │
                               │ • PR Reviewer               │
                               │ • Feature Suggester         │
                               └──────────┬───────────────----


                               ┌──────────────────────────┐
                               │ MeTTa Reasoning Engine   │
                               │ (Knowledge Graphs & AI)  │
                               └──────────────────────────┘


┌───────────────────────────────────────────────────────────────┐
│ On-chain Transparency & Rewards                               │
│ • AI confidence scores stored on-chain                        │
│ • Contributor stake & bounty management                       │
│ • Expired/disputed issues tracked automatically               │
│ • Extensions: increase bounty or extend deadlines             │
└───────────────────────────────────────────────────────────────┘

14.2 Component Interactions

Issue Creation Flow

Repository Owner → Smart Contract → Issue Struct Created

         Bounty Locked

         (Optional) AI Agent → Analyze Repo → Create Issues

         GitHub Issue Created

Issue Assignment Flow

Contributor → Stakes ETH → Smart Contract

         Validates Stake Amount (5-20%)

         Checks Previous Attempts

         Assigns Exclusive Rights

         Sets Deadline (Based on Difficulty)

         Updates GitHub Issue

Issue Completion Flow

Contributor → Submits PR on GitHub

         (Optional) AI Agent → Grades PR → Confidence Score

         Owner → Approves Completion → Smart Contract

         GitHub API Verification

         Contract Validates Assignment Match

         Releases: Bounty + Contributor Stake

         Updates Organization Available Rewards

GitHub Reconciliation Flow

Periodic Cron Job / Event Trigger

         Smart Contract Queries GitHub API

         Compare On-Chain State vs GitHub State

         ┌─────────────────┬─────────────────┐
         ▼                 ▼                 ▼
    Match Found      Mismatch Found    Off-Platform Merge
         │                 │                 │
         ▼                 ▼                 ▼
    Continue         Slash Stake      Slash Owner Stake
    Normally         (Violation)      (Appropriation)

14.3 AI Agent Architecture

┌─────────────────────────────────────────────────────────┐
│                    User Request                         │
│         (Repository URL / PR URL)                       │
└──────────────────────┬──────────────────────────────────┘

┌─────────────────────────────────────────────────────────┐
│              Main Agent (ASI Router)                    │
│  • Receives request                                     │
│  • Queries Agentverse for specialized agents            │
│  • Selects optimal agents (typically 3)                 │
│  • Coordinates analysis                                 │
│  • Synthesizes final response                           │
└──────────────────────┬──────────────────────────────────┘

         ┌─────────────┴─────────────┐
         ▼                           ▼
┌──────────────────┐      ┌──────────────────────┐
│  Code Analyzer   │      │   PR Reviewer        │
│  uAgent          │      │   uAgent             │
│                  │      │                      │
│  • Langchain     │      │  • Langchain         │
│  • MeTTa         │      │  • MeTTa             │
│  • Repo Analysis │      │  • PR Analysis       │
└────────┬─────────┘      └─────────┬────────────┘
         │                          │
         ▼                          ▼
┌────────────────────────────────────────────────────────┐
│              MeTTa Knowledge Graph Layer               │
│                                                        │
│  ┌──────────────────────────────────────────────────┐  │
│  │ Structured Knowledge Representation              │  │
│  │                                                  │  │
│  │  • Code Metadata                                 │  │
│  │  • Call Graphs                                   │  │
│  │  • Dependency Trees                              │  │
│  │  • Issue History                                 │  │
│  │  • Pattern Matching Rules                        │  │
│  │  • Symbolic Reasoning                            │  │
│  └──────────────────────────────────────────────────┘  │
└────────────────────────────────────────────────────────┘
         │                          │
         └───────────┬──────────────┘

         ┌───────────────────────┐
         │  Analysis Results     │
         │  Aggregation          │
         └───────────┬───────────┘

         ┌───────────────────────┐
         │  Final Recommendation │
         │  to User              │
         └───────────────────────┘

14.4 Data Flow

On-Chain Data

Smart Contract State
├── Organizations Mapping
│   ├── repoUrl
│   ├── totalStaked
│   ├── availableRewards
│   ├── owner
│   ├── deadline configurations
│   └── aiCredits
├── Issues Mapping
│   ├── id
│   ├── org address
│   ├── githubIssueUrl
│   ├── bounty
│   ├── assignedTo
│   ├── status flags
│   ├── difficulty
│   └── deadline
├── Contributor Stakes Mapping
└── Assignment History

Off-Chain Data (GitHub)

GitHub Repository
├── Issues
│   ├── Issue Number
│   ├── Status (Open/Closed)
│   ├── Assignee
│   └── Metadata
└── Pull Requests
    ├── PR Number
    ├── Author
    ├── Merge Status
    ├── Linked Issues
    └── Commit History

AI Agent Data (Fetch.ai Chain)

Agent Registry
├── Agent Identity
├── Reputation Score
├── Specialization Tags
├── Performance Metrics
└── Challenge History

14.5 Security Architecture

Defense Layers

Layer 1: Economic Security
├── Two-sided Staking
├── Slashing Conditions
└── Stake-to-Bounty Ratios

Layer 2: Smart Contract Security
├── Reentrancy Guards
├── Access Control Modifiers
├── Pausable Functionality
└── Non-Upgradeable Design

Layer 3: Identity & Sybil Resistance
├── Stake Requirements
├── One-Attempt-Per-Issue Rule
├── (Future) Anon Aadhaar Integration
└── Address Verification

Layer 4: AI Verification
├── Current: Optimistic Reputation System
├── On-Chain Agent Identities
├── Challenge Mechanism
└── Future: TEE Cryptographic Proofs

Layer 5: External Verification
├── GitHub API Reconciliation
├── PR Author Verification
├── Merge State Validation
└── Continuous Monitoring

14.6 Technology Stack

Frontend Layer
├── React / Next.js
├── Web3.js / Ethers.js
├── Wallet Integration Libraries
└── UI Framework (Tailwind CSS)

Blockchain Layer
├── 0G Chain (EVM-Compatible)
├── Solidity 0.8.20
├── OpenZeppelin Contracts
│   ├── ReentrancyGuard
│   ├── Ownable
│   └── Pausable
└── Hardhat / Foundry (Development)

AI Layer
├── Fetch.ai uAgents Framework
├── ASI (Artificial Superintelligence)
├── Langchain Adapters
├── MeTTa Reasoning Engine
└── Agent Marketplace (Agentverse)

Integration Layer
├── GitHub REST API
├── GitHub GraphQL API
└── Webhook Listeners

Future Infrastructure
├── 0G Compute (TEE)
├── 0G Storage (Immutable)
└── 0G Data Availability

14.7 Deployment Architecture

Production Environment
├── Smart Contracts (0G Chain Mainnet)
│   ├── DecentralizedIssueTracker


├── Backend Services
│   ├── GitHub Reconciliation Service
│   ├── Event Indexer
│   ├── API Gateway
│   └── Webhook Handlers

├── AI Infrastructure
│   ├── Main Agent Orchestrator
│   ├── uAgent Instances
│   └── MeTTa Knowledge Store

└── Frontend
    ├── Web Application
    ├── CDN (Static Assets)
    └── IPFS (Decentralized Hosting Option)

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