Files

Krypto Kajun 850223a953 fix(multicall): resolve critical multicall parsing corruption issues

- Added comprehensive bounds checking to prevent buffer overruns in multicall parsing
- Implemented graduated validation system (Strict/Moderate/Permissive) to reduce false positives
- Added LRU caching system for address validation with 10-minute TTL
- Enhanced ABI decoder with missing Universal Router and Arbitrum-specific DEX signatures
- Fixed duplicate function declarations and import conflicts across multiple files
- Added error recovery mechanisms with multiple fallback strategies
- Updated tests to handle new validation behavior for suspicious addresses
- Fixed parser test expectations for improved validation system
- Applied gofmt formatting fixes to ensure code style compliance
- Fixed mutex copying issues in monitoring package by introducing MetricsSnapshot
- Resolved critical security vulnerabilities in heuristic address extraction
- Progress: Updated TODO audit from 10% to 35% complete

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

2025-10-17 00:12:55 -05:00

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PancakeSwap Integration Plan

Overview

This document outlines the implementation plan for PancakeSwap exchange support in the MEV bot. PancakeSwap is a decentralized exchange running on Binance Smart Chain, offering similar functionality to Uniswap but with BNB chain-specific features.

Contract Architecture

Core Contracts

Router: 0x10ED43C718612782E9E672E01bCc53Bb3a3b6B2e (V2), 0x13f4EA83D0bd40E75C8222255bc855a9243358F6 (V3)
Factory: 0xcA143Ce32Fe78f1f7019d7d551a6402fC535aa17 (V2), 0x0BFbCF9fa4f9C56B0F40a6C1cA9bC67Ec9872923 (V3)
MasterChef: 0xa5f8C5Dbd5F286960b9d90548680aE5ebFf07652 (V2 farming)
MasterChefV3: 0x556B9306565093C852F783C116e951053Ac0C548

Unique Features

Syrup Pools (single asset staking)
Prediction markets
Lottery
NFT marketplace integration

Core Functions

V2 Swap Functions

swapExactTokensForTokens
swapTokensForExactTokens
swapExactBNBForTokens
swapTokensForExactBNB
getAmountsOut
getAmountsIn

V3 Swap Functions

exactInputSingle
exactOutputSingle
exactInput
exactOutput

Liquidity Functions

addLiquidity
addLiquidityBNB
removeLiquidity
removeLiquidityBNB

Farming Functions

deposit (to MasterChef)
withdraw (from MasterChef)
pendingCake (pending rewards)

Implementation Steps

Create PancakeSwap struct implementing the Exchange interface
Implement both V2 and V3 contract support
Handle BNB-specific swap functions
Implement MasterChef integration for yield farming
Add Syrup Pool support
Create BSC-specific gas estimation
Implement PCS-specific routing logic
Add support for PCS tokens and farms

Pricing Mechanisms

V2 Pricing

Standard constant product AMM formula
0.25% swap fee (compared to 0.3% on Uniswap)
Use reserves to calculate price impact

V3 Pricing

Concentrated liquidity model
Tick-based pricing mechanism
Variable swap fees based on pool (0.01%, 0.05%, 0.25%, 1%)

PCS-Specific Considerations

Lower standard swap fees (0.25% vs 0.3%)
BNB integration for direct swaps
Farming reward tracking in profitability calculations

Testing Plan

Unit tests for V2 and V3 swap functions
BNB-specific swap testing
MasterChef integration testing
Syrup Pool functionality verification
Cross-chain arbitrage opportunity testing
Edge case testing (zero amounts, max amounts)
Price accuracy verification
Gas optimization testing on BSC

Performance Considerations

BSC's faster block times (compared to Ethereum)
Lower gas costs for more frequent operations
Efficient routing between V2 and V3 pools
Cache frequently accessed pool information
Batch operations to reduce transaction costs

Security Considerations

Validate BSC-specific contract addresses
Implement proper slippage protection
Handle BSC's different security model
Verify farm and pool parameters
Sanitize data from external PCS contracts

Integration with MEV Bot

Identify PCS-specific arbitrage opportunities
Monitor V2 and V3 pools for profitable swaps
Track farming rewards in profitability calculations
Include Syrup Pools in yield strategies
Coordinate with other exchanges for cross-chain arbitrage
Consider CAKE token incentives in trade decisions
Monitor new farm launches for early entry opportunities

3.3 KiB Raw Blame History