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High-Level Overview

CLOAK uses a modular architecture that separates user intent from on-chain execution. This separation is the basis of the privacy model. The system comprises three main components:
  1. User Client (Web App): Wallet connection and intent signing.
  2. Relay & Orchestrator: Backend services that process intents and manage execution.
  3. Executor Network: A set of hot wallets that submit transactions to the blockchain.

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Key Components

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1. Relay Layer

The Relay is a stateless service that receives encrypted intents from the client. It performs validation and rate-limiting, then forwards the encrypted payload to the Orchestrator. The Relay does not possess decryption keys for intents.

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2. Orchestrator

The Orchestrator is the core coordination component. It:
  • Verifies the user signature.
  • Decrypts the intent.
  • Plans execution (e.g., chunk scheduling for Stealth Mode).
  • Selects an Executor Wallet.
  • Monitors the chain for settlement.

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3. Executor Wallets

Executor Wallets are hot wallets operated by CLOAK. They submit swap transactions to Solana. Because they are separate from the user wallet, they break the direct on-chain link between the user address and the swap.

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4. Escrow Program

For Stealth Sells, assets are locked in a non-custodial Anchor program. User funds are only withdrawable by an authorized executor with a valid Signed Intent, or returned to the user on cancellation.