The purpose and rationale behind the COMMISSION_FEE value are not adequately explained through comments or documentation(Hence unknown use)

Severity

Low Risk

Summary

The purpose and rationale behind the COMMISSION_FEE value are not adequately explained through comments or documentation. This lack of clarity makes it difficult for developers and auditors to understand the reason for the chosen commission fee, potentially leading to confusion and unintended consequences.

Vulnerability Details

The code defines a constant COMMISSION_FEE without providing any comments or documentation to explain why this specific value was chosen. Without proper context, it becomes unclear why the commission fee is set to the value of 500 (5%).

uint256 private constant COMMISSION_FEE = 500; // this can be changed in the future

Impact

The lack of a clear explanation for the commission fee can lead to misunderstandings among developers and auditors. This might result in misinterpretations, incorrect modifications, or vulnerabilities that arise from misunderstandings of the commission fee's purpose.

Tools Used

Manual

Recommendations

Add a detailed comment that explains the rationale behind choosing a commission fee of 500 (5%). Include information about how this fee aligns with the project's goals, business model, or economic incentives. Providing a clear explanation will help future developers and auditors understand the purpose of this value and make informed decisions if modifications are needed.

// The COMMISSION_FEE represents the percentage of tokens withheld as a commission
// to support the platform's operations or incentives. The value of 500 corresponds
// to a 5% commission fee. This fee structure encourages sustainable growth while
// providing value to both users and the platform.
uint256 private constant COMMISSION_FEE = 500; // 5%

By providing a commented rationale, you enhance the transparency and maintainability of the codebase.

Cyfrin / 2023-08-sparkn