Anthropic-Cybersecurity-Skills/skills/analyzing-ethereum-smart-contract-vulnerabilities/references/api-reference.md

API Reference: Analyzing Ethereum Smart Contract Vulnerabilities

Slither CLI

# Basic analysis
slither contracts/

# JSON output
slither contracts/ --json slither-report.json

# Run specific detector only
slither contracts/ --detect reentrancy-eth,unprotected-upgrade

# List all detectors
slither --list-detectors

# Print contract summary
slither contracts/ --print human-summary

# Generate inheritance graph
slither contracts/ --print inheritance-graph

Mythril CLI

# Analyze single contract
myth analyze contracts/Token.sol

# JSON output
myth analyze contracts/Token.sol -o json

# Set execution timeout
myth analyze contracts/Token.sol --execution-timeout 300

# Analyze deployed bytecode
myth analyze --address 0x1234... --rpc infura

# Increase analysis depth
myth analyze contracts/Token.sol --max-depth 50 --transaction-count 3

Slither Detector Severity Levels

Impact	Confidence	Example Detectors
High	High	reentrancy-eth, suicidal, arbitrary-send-eth
High	Medium	controlled-delegatecall, reentrancy-no-eth
Medium	High	locked-ether, incorrect-equality
Medium	Medium	uninitialized-state, shadowing-state
Low	High	naming-convention, solc-version
Informational	High	pragma, dead-code

SWC Registry (Key Entries)

SWC ID	Title	Tool Coverage
SWC-101	Integer Overflow/Underflow	Mythril
SWC-104	Unchecked Call Return	Slither + Mythril
SWC-106	Unprotected SELFDESTRUCT	Slither + Mythril
SWC-107	Reentrancy	Slither + Mythril
SWC-110	Assert Violation	Mythril
SWC-112	Delegatecall to Untrusted Callee	Slither
SWC-115	tx.origin Authentication	Slither
SWC-116	Block Timestamp Dependence	Mythril
SWC-120	Weak Randomness	Slither

Installation

# Slither (requires solc)
pip install slither-analyzer
solc-select install 0.8.20
solc-select use 0.8.20

# Mythril
pip install mythril

Slither JSON Output Structure

{
  "success": true,
  "results": {
    "detectors": [{
      "check": "reentrancy-eth",
      "impact": "High",
      "confidence": "Medium",
      "description": "Reentrancy in Contract.withdraw()",
      "elements": [{"source_mapping": {"filename_short": "Contract.sol", "lines": [42, 43]}}]
    }]
  }
}

References

• Slither: https://github.com/crytic/slither
• Mythril: https://github.com/Consensys/mythril
• SWC Registry: https://swcregistry.io/
• Solidity Security: https://docs.soliditylang.org/en/latest/security-considerations.html