Individual skill
web3-audit
Smart contract security audit — 10 DeFi bug classes (accounting desync, access control, incomplete path, off-by-one, oracle, ERC4626, reentrancy, flash loan, signature replay, proxy), pre-dive kill signals (TVL < $500K etc), Foundry PoC template, grep patterns for each class, and real Immunefi paid examples. Use for any Solidity/Rust contract audit or when deciding whether a DeFi target is worth hunting.
skills/web3-audit/SKILL.md
Source commit 8060af0c1b0b6ecc6595ee3261f50aa613038620
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- Last checked
- Nov 3, 2026
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- Repository stars (not skill ratings)
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- Repository last updated
- Oct 28, 2026
- License
- MIT
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- ai-security Repository topic
- bug-bounty Repository topic
- bugcrowd Repository topic
- claude-ai Repository topic
- ethical-hacking Repository topic
- hackerone Repository topic
- penetration-testing Repository topic
- recon Repository topic
- vulnerability-scanner Repository topic
- claude-code Repository topic
- security Derived category
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Read excerpt
# WEB3 SMART CONTRACT AUDIT
10 bug classes. Pre-dive kill signals. Foundry PoC template. Real paid examples.
---
## PRE-DIVE KILL SIGNALS (check BEFORE any code review)
> ZKsync lesson: $322M TVL + OZ audit + 750K LOC + 5 sessions = 0 findings. Large well-audited bridges are extremely hard.
1. **TVL < $500K** → max payout capped too low for effort
2. **2+ top-tier audits** (Halborn, ToB, Cyfrin, OpenZeppelin) on simple protocol → bugs already found
3. **Protocol < 500 lines, single A→B→C flow** → minimal attack surface
4. **Formula**: `max_realistic_payout = min(10% × TVL, program_cap)` — if < $10K, skip