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Security Module

Smart contract security auditing tools — static analysis, fuzzing, and exploit development.

Modules

Static Analysis

Automated vulnerability detection using Slither.

from web3_agent_kit.security import StaticAnalyzer

analyzer = StaticAnalyzer()
results = analyzer.analyze("contracts/Token.sol")

for vuln in results.vulnerabilities:
    print(f"[{vuln.severity}] {vuln.name}: {vuln.description}")

Fuzzing

Property-based testing with Echidna/Foundry.

from web3_agent_kit.security import FuzzTester

fuzzer = FuzzTester()
fuzzer.add_property("balance_never_negative", "assert(balanceOf(user) >= 0)")
results = fuzzer.run("contracts/Vault.sol", duration="10m")

Exploit Development

Build PoC exploits for discovered vulnerabilities.

from web3_agent_kit.security import ExploitBuilder

builder = ExploitBuilder(chain=Chain.ETHEREUM)
exploit = builder.build_reentrancy(
    target="0x...",
    attack_contract="contracts/Exploit.sol",
)
result = exploit.simulate()
print(f"Profit: ${result.profit_usd:.2f}")

Forensics

On-chain transaction tracing and analysis.

from web3_agent_kit.security import OnchainForensics

forensics = OnchainForensics(chain=Chain.ETHEREUM)
trace = forensics.trace_tx("0x...")
print(f"From: {trace.from_addr}")
print(f"Total value moved: ${trace.total_value_usd:.2f}")
print(f"Contracts involved: {trace.contracts}")

Protocol Audit

Full DeFi protocol security audit.

from web3_agent_kit.security import ProtocolAuditor

auditor = ProtocolAuditor()
report = auditor.audit(
    contracts=["contracts/Vault.sol", "contracts/Token.sol"],
    checks=["reentrancy", "overflow", "access_control", "oracle_manipulation"],
)
report.save("audit-report.md")

Supported Tools

Tool Purpose
Slither Static analysis
Echidna Property-based fuzzing
Foundry Fuzz testing + simulation
Mythril Symbolic execution
Securify2 Security patterns

10 Built-in Skills

The security module includes 10 specialized skills for different attack vectors:

  • smart-contract-exploit — Exploit development
  • smart-contract-static-analysis — Automated detection
  • smart-contract-fuzzing — Property-based testing
  • onchain-forensics — Transaction tracing
  • recon-and-osint — Target reconnaissance
  • web-app-pentest — Web application testing
  • defi-protocol-audit — Full protocol audit
  • wallet-compromise-rescue — Rescue compromised assets
  • evm-7702-rescue — EIP-7702 asset rescue
  • web3-bug-bounty-hunter — Bug bounty automation