Smart Contract Security Checklist Before Mainnet Launch

Pre-Mainnet Security Checklist

Code Quality

• 95%+ test coverage on Hardhat/Foundry
• Fuzz testing on critical functions
• Static analysis (Slither, Mythril) with zero critical findings
• No floating pragma — pinned compiler version
• OpenZeppelin contracts used where applicable

Access Control

• Owner functions behind multi-sig for high-value contracts
• Role-based permissions (not single owner for everything)
• Timelock on upgrade functions
• Emergency pause mechanism tested

Common Vulnerabilities

• Reentrancy guards on external calls
• Integer overflow protection (Solidity 0.8+ or SafeMath)
• Front-running mitigation for price-sensitive operations
• Oracle manipulation resistance (Chainlink, TWAP)
• Denial-of-service vectors in loops addressed

Deployment

• Testnet deployment minimum 2 weeks before mainnet
• Contract verified on Etherscan/Polygonscan
• Deployment scripts idempotent and tested
• Initial parameters double-checked (fees, caps, addresses)

Audit

• Third-party audit for contracts holding >$500K TVL
• All critical/high findings resolved before launch
• Public audit report linked for user trust

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