web3-hunt-zksync-era

web3-hunt-zksync-era is a skill for Claude Code, Codex from Olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills. It costs 88 tokens per session (2,333 once invoked), scanned A, a copy of web3-hunt-zksync-era, MIT.

A completed security study of ZKsync Era, a blockchain scaling system that processes transactions away from the Ethereum main network and uses zero-knowledge proofs. It records an exhaustive hunt that reported no findings.

In plain words
What is it for?
Use it to study the protocol’s architecture, tested attack paths, security patterns, and criteria for deciding whether to continue or abandon a bug bounty target.
Why use it?
It provides a reference for understanding why a complex protocol may resist common attack attempts and when continuing a security review may no longer be worthwhile.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it to study the protocol’s architecture, tested attack paths, security patterns, and criteria for deciding whether to continue or abandon a bug bounty target.

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Install with agentmods
npx agentmods add skills/olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills/web3-hunt-zksync-era
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add Olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills --skill web3-hunt-zksync-era
Clone the repo
git clone --depth 1 https://github.com/Olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for web3-hunt-zksync-era

README.md
[![agentmods](https://agentmods.dev/badge/skills/olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills/web3-hunt-zksync-era/github.svg)](https://agentmods.dev/skills/olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills/web3-hunt-zksync-era)
Your own site
<a href="https://agentmods.dev/skills/olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills/web3-hunt-zksync-era"><img src="https://agentmods.dev/badge/skills/olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills/web3-hunt-zksync-era/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for web3-hunt-zksync-era

Your own site · 80×15
<a href="https://agentmods.dev/skills/olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills/web3-hunt-zksync-era"><img src="https://agentmods.dev/badge/skills/olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills/web3-hunt-zksync-era.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 88 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,333 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin 100% copy Near-identical to another mod in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00088 $0.02333
Opus 5 $0.00044 $0.01167
Sonnet 5 $0.00018 $0.00467
Haiku 4.5 $0.00009 $0.00233

Measured 12d ago against content hash 655bc7b69deb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

web3-hunt-zksync-era scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 12d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

Origin

This is a copy

100% identical to web3-hunt-zksync-era — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

web3-hunt-zksync-era/SKILL.md · 179 lines

How it starts

The opening of the file, as written. The whole thing — 179 lines — stays where its author put it; the contents beside it link to each section on GitHub.

LIVE HUNT: ZKsync Era (Immunefi) — COMPLETED, 0 FINDINGS

Outcome: 0 submittable findings after 5+ sessions, 22+ agents, 25+ contracts, 25+ attack vectors Lesson: This file exists as a DEFENSE STUDY — what a hardened protocol looks like, and when to stop hunting.


TARGET PROFILE

Field Value
Protocol ZKsync Era (L2 rollup)
Platform Immunefi
TVL $322M (L2BEAT Total Value Secured)
Bounty $100K minimum Critical, $1.1M max
Codebase 750K LOC (Solidity + Rust + Yul)
Audits OpenZeppelin V29 (June 2025), multiple prior audits
Version Protocol V29.4
Repo github.com/matter-labs/era-contracts
Primacy Primacy of Impact — even out-of-scope assets qualify
Prior payouts $50K (ChainLight ZK circuit bug)

Pre-Dive Scorecard

Check Result Score
TVL > $500K $322M PASS
Max payout > $10K $100K minimum PASS
Simple protocol? 750K LOC, L1↔L2 bridge + ZK + governance PASS (complex)
< 500 lines? 750K LOC PASS
Audit quality OpenZeppelin (top-tier) on ALL critical paths WARNING

REFINEMENT: Pre-dive should weight audit quality MORE for large protocols. A protocol passing TVL/LOC/payout checks can still be unhuntable if OZ/ToB audited the exact code you'd hunt. Add "audit firm tier" as a SOFT kill signal for 500K+ LOC protocols.


ARCHITECTURE (What Makes It Hardened)

L1 Bridge Stack

Bridgehub (router)
  ├── L1AssetRouter (token routing)
  │     ├── L1Nullifier (deposit/withdrawal state)
  │     └── L1NativeTokenVault (token custody)
  ├── ChainTypeManager (chain registration)
  └── ValidatorTimelock (RBAC execution delay)

L2 System Contracts (kernel space 0x8000-0xFFFF)

Bootloader (0x8001) → AccountCodeStorage, NonceHolder, KnownCodeStorage,
ImmutableSimulator, ContractDeployer, L1Messenger (0x8008),
MsgValueSimulator, L2BaseToken (0x800a), SystemContext (0x800b),
BootloaderUtilities, Compressor, ComplexUpgrader

Read the full file on GitHub · 179 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 12d ago First seen · 179 lines · 88 tokens per session scan A 655bc7b69deb

Subscribe to this mod's changes

web3-hunt-zksync-era is a skill published in the GitHub repository Olaradiallysymmetrical491/web3-bug-bounty-hunting-ai-skills (5 stars, last pushed yesterday), licensed MIT. It adds 88 tokens to every session and 2,333 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to web3-hunt-zksync-era, differing in 0 lines, and is treated as a copy.