YieldForge - Bitcoin-Native Yield Aggregation Protocol

A non-custodial yield aggregator implementing Bitcoin DeFi strategies on Stacks L2 with institutional-grade risk management.

Features

• Risk-Profiled Allocation

  • Conservative/Moderate/High risk strategies
  • Dynamic APY optimization
  • Customizable user allocations (basis points)

• Security Framework

  • Timelocked withdrawals (144 blocks/~24h)
  • Protocol whitelisting system
  • Multi-signature contract ownership
  • Emergency pause functionality

• Economic Model

  • 1% performance fee
  • 0.5% insurance fund contribution
  • Auto-compounding positions
  • Cross-protocol TVL balancing

• Bitcoin Integration

  • SIP-009 compliant assets
  • Stacks-secured smart contracts
  • Bitcoin-settled transactions

Contract Architecture

Core Components

1. Protocol Registry

   • Whitelisted DeFi protocols with risk ratings
   • Real-time APY tracking
   • TVL monitoring

2. Position Management

   • Shares-based accounting
   • Cross-protocol exposure limits
   • Deposit/Withdrawal queues

3. Risk Engine

   • Mean-Variance optimization
   • Protocol correlation matrix
   • Blacklist circuit breakers

4. Fee Mechanism

   (define-private (deduct-fees amount)
       (let
           ((performance-fee (/ (* amount (var-get performance-fee-bps)) u10000))
           (insurance-fee (/ (* amount (var-get insurance-fee-bps)) u10000)))

Key Functions

User Operations

Function	Parameters	Description
smart-deposit	(amount, token)	Auto-allocation across optimal protocols
request-withdrawal	(protocol-id, amount)	Initiate timelocked withdrawal
set-risk-profile	(conservative, moderate, high)	Set allocation percentages

Protocol Management

(define-public (add-protocol name contract-address token-address risk-level apy-bps)
  "Whitelist new protocol with risk rating and APY"

Administrative

• update-protocol-apy: Adjust protocol's current APY
• auto-compound: Manual yield harvesting (owner-only)
• pause-contract: Emergency stop mechanism

Error Handling

Code	Error Message	Description
1000	ERR-NOT-AUTHORIZED	Unauthorized access attempt
1001	ERR-PROTOCOL-NOT-WHITELISTED	Unapproved protocol interaction
1005	ERR-WITHDRAWAL-IN-PROGRESS	Existing pending withdrawal
1010	ERR-PROTOCOL-NOT-ACTIVE	Protocol temporarily suspended

Security Model

1. Funds Protection

   • Non-custodial architecture
   • 24h withdrawal timelock
   • TVL-based insurance pool

2. Protocol Safeguards

   (define-map protocol-allocations
     {strategy-id: uint, risk-level: uint}
     {protocol-id: uint, allocation-percentage: uint}
   )

   • Maximum 25% allocation per protocol
   • APY deviation alerts
   • TVL withdrawal limits

3. Operational Security

   • Multi-sig contract upgrades
   • Quarterly security audits
   • Real-time anomaly detection

Integration Guide

JavaScript Example

// Connect to Stacks wallet
const userSession = new UserSession();

// Execute smart deposit
const txOptions = {
  contractAddress: "SP3FBR2AGK5H9QBDH3EEN6DF8EK8JY7RX8QJ5SVTE",
  contractName: "yieldforge-v1",
  functionName: "smart-deposit",
  functionArgs: [uintCV(1000000), standardPrincipalCV("SP2JXK...")],
  senderKey: userSession.loadUserData().appPrivateKey,
};

await broadcastTransaction(txOptions);