prompt:
Expert Solidity security analysis:

Finding: Transaction Order Dependence / Front-Running
Code snippet:
```
contract RaceCondition {
    mapping(address => uint) public balances;
    function bet(uint256 guess) external payable {
        require(msg.value >= 1 ether);
        // no block-checker - order of txs in block determines winner
        if (guess == block.number % 2) {
            balances[msg.sender] += msg.value * 2;
        }
    }
}
```

What is the correct severity level and why? (CRITICAL/HIGH/MEDIUM/LOW/INFO)

Assessment:

completion:
SEVERITY: CRITICAL

CWE: CWE-362
SWC: SWC-107

IMPACT: An attacker can front-run legitimate transactions by observing pending tx pool, causing financial loss.

CODE SMELL: Uses block.number for randomness AND checks nothing about order.

category: severity


prompt:
Rate severity of this Solidity code vulnerability:

Code:
```
contract AdminContract {
    address public owner;
    function renounceOwnership() external {
        // called by anyone - should be onlyOwner
        owner = address(0);
    }
}
    // try/catch wrapper
```

Vulnerability: Missing Access Control on State-Changing Function | SWC: SWC-104 | CWE: CWE-306

Severity:

completion:
SEVERITY: CRITICAL

CWE: CWE-306
SWC: SWC-104

IMPACT: Any user can renounce ownership or transfer ownership of a critical contract.

category: severity


prompt:
Expert Solidity audit requested.

Find flash loan attack vectors in this lending protocol:

contract Lending {
    mapping(address => uint) public deposited;
    function borrow(address token, uint amount) external {
        // reads price without TWAP - single snapshot
        uint price = IPoracle(msg.sender).latestAnswer();
        // liquidate with manipulated price
    }
}

Choose the right security analysis tool and call it with the relevant code.

completion:
{
  "tool_call": {
    "name": "check_flashloan",
    "arguments": {
      "code": "contract Lending {\n    mapping(address => uint) public deposited;\n    function borrow(address token, uint amount) external {\n        uint price = IPoracle(msg.sender).latestAnswer();\n    }\n}"
    }
  }
}


prompt:
Expert Solidity audit requested.

Audit this contract for reentrancy vulnerabilities:

contract Bank {
    mapping(address => uint) public balances;
    function withdraw() external {
        uint bal = balances[msg.sender];
        (bool ok,) = msg.sender.call{value: bal}("");
        require(ok);
        balances[msg.sender] = 0;
    }
}

Choose the right security analysis tool and call it with the relevant code.

completion:
{
  "tool_call": {
    "name": "find_reentrancy",
    "arguments": {
      "code": "contract Bank {\n    mapping(address => uint) public balances;\n    function withdraw() external {\n        uint bal = balances[msg.sender];\n        (bool ok,) = msg.sender.call{value: bal}(\"\");\n        require(ok);\n        balances[msg.sender] = 0;\n    }\n}"
    }
  }
}


prompt:
Rate severity of this Solidity code vulnerability:

Code:
```
contract Token {
    mapping(address => uint256) public balanceOf;
    function transfer(address to, uint256 val) external {
        // No SafeMath, no overflow check
        balanceOf[msg.sender] -= val;  // underflow if val > balanceOf[msg.sender]
        balanceOf[to] += val;
    }
}
    // assembly version
```

Vulnerability: Integer Overflow / Underflow | SWC: SWC-101 | CWE: CWE-915

Severity:

completion:
SEVERITY: CRITICAL

CWE: CWE-915
SWC: SWC-101

IMPACT: Unprotected arithmetic can be abused to drain contract funds or mint unlimited tokens.

category: severity


prompt:
Rate severity of this Solidity code vulnerability:

Code:
```
contract PredictableRandom {
    function random() internal view returns (uint) {
        return uint(keccak256(abi.encodePacked(
            block.timestamp, msg.sender, block.number
        )) % 100;
    }
    function claimPrize() external {
        require(random() < 50, "not a winner");  // attacker precomputes
    }
}
    // try/catch wrapper
```

Vulnerability: Use of Insufficiently Random Values | SWC: SWC-111 | CWE: CWE-838

Severity:

completion:
SEVERITY: HIGH

CWE: CWE-838
SWC: SWC-111

IMPACT: Predictable randomness allows attacker to always win.

category: severity


prompt:
Expert Solidity audit requested.

Check this proxy contract for storage collision issues:

contract Proxy {
    address public implementation;
    fallback() external {
        assembly { calldataload(0) }
    }
}

Choose the right security analysis tool and call it with the relevant code.

completion:
{
  "tool_call": {
    "name": "analyze_storage",
    "arguments": {
      "code": "contract Proxy {\n    address public implementation;\n    fallback() external {\n        assembly { calldataload(0) }\n    }\n}"
    }
  }
}


prompt:
As a Solidity security auditor, perform a targeted analysis.

Check the fallback handling:

contract NoFallback {
    mapping(address => uint) public balances;
    function deposit() external payable {
        balances[msg.sender] += msg.value;
    }
    // No fallback - accepts plain ETH with no handler
}

Select and call the most appropriate security tool from your toolkit.

completion:
{
  "tool_call": {
    "name": "find_default_fallback",
    "arguments": {
      "code": "contract NoFallback {\n    mapping(address => uint) public balances;\n    function deposit() external payable {\n        balances[msg.sender] += msg.value;\n    }\n}"
    }
  }
}


prompt:
Rate severity of this Solidity code vulnerability:

Code:
```
contract RaceCondition {
    mapping(address => uint) public balances;
    function bet(uint256 guess) external payable {
        require(msg.value >= 1 ether);
        // no block-checker - order of txs in block determines winner
        if (guess == block.number % 2) {
            balances[msg.sender] += msg.value * 2;
        }
    }
}
    // assembly version
```

Vulnerability: Transaction Order Dependence / Front-Running | SWC: SWC-107 | CWE: CWE-362

Severity:

completion:
SEVERITY: CRITICAL

CWE: CWE-362
SWC: SWC-107

IMPACT: An attacker can front-run legitimate transactions by observing pending tx pool, causing financial loss.

category: severity