# Technical Overview

#### System Architecture

Brava is a non-custodial DeFi automation platform built on Safe smart accounts. The architecture consists of two main layers:

#### Smart Contracts (On-Chain)

The on-chain layer provides secure, deterministic execution of DeFi strategies:

* **Safe Accounts:** User-controlled smart contract wallets maintaining full custody
* **Action Contracts:** Modular protocol adapters (Aave, Yearn, Morpho, etc.)
* **SequenceExecutor:** Orchestrates atomic multi-action transactions
* **AdminVault:** Governance and configuration registry with time-delayed proposals
* **EIP712 Module:** Cross-chain bundle execution with single-signature authorization
* **BravaGuard:** Transaction validation ensuring funds stay within approved protocols

#### Data Intelligence Layer (Off-Chain)

The off-chain layer handles computation, orchestration, and user experience:

* **Pool Discovery & Onboarding:** Automated protocol integration and vetting
* **Risk Intelligence:** Real-time monitoring and assessment of protocol health
* **APY Analytics:** Continuous yield calculation and performance tracking
* **Transaction Orchestration:** Cross-chain execution coordination and monitoring
* **Data Indexing:** On-chain event tracking and historical data aggregation
* **User Interface:** Portfolio management and strategy execution dashboard

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#### Core Principles

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<summary><strong>User Custody</strong></summary>

All funds remain in user-controlled Safe accounts at all times

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<summary><strong>Modularity</strong></summary>

Protocol integrations as composable, upgradeable action contracts

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<summary><strong>Security</strong></summary>

Multi-layer protection with BravaGuard, time-delays, and role-based access

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<summary><strong>Cross-Chain</strong></summary>

Unified interface across Ethereum, Base, Arbitrum, and other EVM chains

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<summary><strong>Deterministic Deployment</strong></summary>

CREATE2 for consistent addresses across networks

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