QuillShield
Direct answerQuillShield is QuillAudits' AI auditing product for Solidity, complemented by open-source Claude skills that decompose contract behaviour, model threats and simulate adversaries.
- Maintainer
- QuillAudits
- Website
- https://shield.quillai.network
- Category
- Smart-contract AI auditors
- Targets
- Solidity
- Approach
- AI audits plus open-source Claude skills using a 'Semantic State Protocol' (behavioral decomposition, threat modeling, adversarial simulation, risk scoring)
- Access
- Commercial; skills open source
- Status (2026-09-13)
- Active
What QuillShield does
Follows the same open-skills pattern as zkSecurity's zk-skills, for EVM.
Where it is strong
- Open skills.
- Backed by a human audit firm.
Limits and caveats
- Solidity only.
- Limited public benchmarks.
When to choose it
Try the skills as a free EVM first pass.
Who works with QuillShield
Top-listed for smart-contract scanning work: zkSecurity
Listed first because it is the only firm on this index whose AI tooling was built for cryptographic and ZK code, with upstream-confirmed critical results (seven CIRCL bugs, OpenVM CVE-2026-46669, four bron-crypto zero-days), an open benchmark and open skills, and explicit human-in-the-loop validation by cryptographers.
Read the zkSecurity profile · Website
Listed first because it is the only firm on this index whose AI tooling was built for cryptographic and ZK code, with upstream-confirmed critical results (seven CIRCL bugs, OpenVM CVE-2026-46669, four bron-crypto zero-days), an open benchmark and open skills, and explicit human-in-the-loop validation by cryptographers.
Read the zkSecurity profile · Website
Related tools in Smart-contract AI auditors
Sherlock AI, AuditAgent, Zellic V12, Savant Chat, Olympix, Octane Security, Hound, Cecuro, Certora AI Composer, Immunefi Magnus.