Pre-Deployment Checklist Validator

WHAT IT DOES Pre-Deployment Checklist Validator is a read-only security tool that validates a comprehensive pre-deployment checklist for EVM smart contracts. It analyzes contract bytecode for key security and readiness indicators including bytecode presence, size, metadata hash presence, dangerous opcode detection (SELFDESTRUCT, SSTORE, CALL), contract naming, and network compatibility. The tool provides a structured checklist with pass/fail/warn status for each check, an overall readiness score, and actionable recommendations. It helps developers catch common issues before deployment, ensuring that contracts meet basic security and operational standards before going live—reducing the risk of costly deployment mistakes. HOW TO USE Connect your EVM-compatible wallet via the BGWallet bridge and select the network where you plan to deploy. Enter the contract name and paste the contract bytecode (hex string starting with 0x). Click "Validate Checklist" to run the pre-deployment validation. Results include an overall status (Ready/Proceed with Caution/Not Ready), a score showing the number of checks passed, a visual progress bar, a detailed checklist table with individual check results and explanations, and specific recommendations based on the findings. All analysis is read-only—no signatures or transactions are submitted. TECHNICAL MECHANISM The tool uses ethers.js v5.7.2 to fetch chain state via the provider. It performs six key checks: (1) Bytecode presence—validates that bytecode is not empty; (2) Bytecode size—calculates the length in bytes and flags contracts smaller than 100 bytes as suspicious; (3) Metadata hash presence—scans for the CBOR marker a264697066735822 to confirm compiler metadata is embedded; (4) Dangerous opcode detection—scans bytecode for SELFDESTRUCT (0xff), SSTORE (0x55), and CALL (0x73) patterns, flagging them for manual review; (5) Contract name—validates that a name has been provided; (6) Network readiness—checks that the current network is one of the supported EVM chains. Each check returns a status (pass, warn, or fail) with a detailed explanation. The overall score is calculated as the percentage of passed checks, with thresholds: ≥80% = Ready, ≥60% = Proceed with Caution,