Centralization Risk Scorer for Contract Ownership

WHAT IT DOES

Centralization Risk Scorer for Contract Ownership is a security-focused tool that scores the centralization risk of smart contracts based on their ownership patterns and access control mechanisms. It takes contract source code from the user and analyzes it for ownership patterns, onlyOwner modifiers, access control functions, ownership transfer and renounce functions, multi-signature implementations, and governance patterns. The tool calculates a risk score from 0 to 100 based on the presence and configuration of these patterns, categorizing the contract as low, medium, or high risk. Each finding is displayed with its category, pattern description, point contribution, and severity level. The tool provides detailed recommendations for reducing centralization risk. This enables developers and auditors to assess the degree of centralization in a contract and identify areas for improvement before deployment.

HOW TO USE

Paste your Solidity contract source code into the input area. Click "Score centralization risk" to analyze the code. The tool will display a risk meter showing the score and risk level (low, medium, high), along with a summary of findings. Each finding includes the category, pattern description, point contribution, and severity. Recommendations are provided for medium and high-risk contracts. The score report can be copied or downloaded as JSON for further analysis.

TECHNICAL NOTE: RISK SCORING METHODOLOGY

The tool uses a weighted scoring system across five categories: Single Owner Pattern (25 points), onlyOwner Modifier (20 points), Ownership Transfer (15 points), Multi-Signature/Governance (20 points), and Access Control (20 points). For each category, the tool detects specific patterns using regex-based matching and assigns scores based on the presence and configuration of these patterns. Positive scores indicate centralization risk, while negative scores (e.g., multi-signature or governance patterns) reduce the total risk. The final score is normalized to a 0-100 scale. The risk level is determined by the score: low (0-40), medium (41-70), or high (71-100). The tool also counts findings by severity (critical, high, medium, low).

WHAT IT CANNOT SEE

The tool cannot detect all centralization risks without context; some patterns may be safe depending on the specific application logic. It is limited to the accuracy of the source code analysis; syntax variations may cause false positives or negatives. It cannot detect issues in external contracts or libraries that are imported into the contract. It cannot verify if a centralization risk is actually exploitable in the specific deployment environment. The tool is limited by the parser's ability to handle Solidity syntax variations, including newer language features. It cannot scan for centralization risks on non-EVM chains.

PLEASE NOTE

This tool is designed exclusively for Solidity contracts on EVM-compatible chains. It does not support other smart contract languages. The score is a heuristic assessment and should not be considered a definitive security audit. Always verify the findings with manual review and comprehensive security testing. The tool is read-only and does not modify any state. The tool provides no warranty that the score or findings are complete or accurate; users are responsible for validating all findings and implementing appropriate fixes.