Summary

Improve input validation clarity.

Vulnerability Details

The contract uses assert(ids.length > 0); to ensure that the ids array is not empty in _depositIntoEscrow. While this prevents execution when the condition is not met, assert is typically reserved for conditions that should never fail, such as internal logic errors. Using require would provide more informative error messages and is more appropriate for validating inputs.

Impact

Less informative errors for users.

Tools Used

Recommendations

Replace assert(ids.length > 0); with require(ids.length > 0, "No tokens provided");