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.
npx skills add 0xlayerghost/solidity-agent-kit --skill solidity-auditgit clone --depth 1 https://github.com/0xlayerghost/solidity-agent-kitWrote 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.
[](https://agentmods.dev/skills/0xlayerghost/solidity-agent-kit/solidity-audit)<a href="https://agentmods.dev/skills/0xlayerghost/solidity-agent-kit/solidity-audit"><img src="https://agentmods.dev/badge/skills/0xlayerghost/solidity-agent-kit/solidity-audit/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.
<a href="https://agentmods.dev/skills/0xlayerghost/solidity-agent-kit/solidity-audit"><img src="https://agentmods.dev/badge/skills/0xlayerghost/solidity-agent-kit/solidity-audit.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00055 | $0.06445 |
| Opus 5.5 | $0.00022 | $0.02578 |
| Sonnet 5.5 | $0.00011 | $0.01289 |
| Haiku 4.5 | $0.00006 | $0.00645 |
Grade A, and why
solidity-audit 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 1mo 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.
This is a copy
91% identical to solidity-audit — 38 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.
How it starts
The opening of the file, as written. The whole thing — 392 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Solidity Security Audit Checklist
Language Rule
- Always respond in the same language the user is using. If the user asks in Chinese, respond in Chinese. If in English, respond in English.
Usage: This skill is for security audits and code reviews. It is NOT auto-invoked — call
/solidity-auditwhen reviewing contracts for vulnerabilities.
Contract-Level Vulnerabilities
1. Reentrancy
| Variant | Description | Check |
|---|---|---|
| Same-function | Attacker re-enters the same function via fallback/receive | All external calls after state updates (CEI pattern)? |
| Cross-function | Attacker re-enters a different function sharing state | All functions touching shared state protected by nonReentrant? |
| Cross-contract | Attacker re-enters through a different contract that reads stale state | External contracts cannot read intermediate state? |
| Read-only | View function returns stale data during mid-execution state | No critical view functions used as oracle during state transitions? |
Case: GMX v1 (Jul 2025, $42M) — reentrancy in GLP pool on Arbitrum, attacker looped withdrawals to drain liquidity.
2. Access Control
| Check | Detail |
|---|---|
| Missing modifier | Every state-changing function has explicit access control? |
| Modifier logic | Modifier actually reverts on failure (not just empty check)? |
| State flag | Access-once patterns properly update storage after each user? |
| Admin privilege scope | Owner powers are minimal and time-limited? |
Case: Bybit (Feb 2025, $1.4B) — Safe{Wallet} UI injected with malicious JS, hijacked signing process. Not a contract flaw, but access control at the infrastructure layer.
3. Input Validation
| Check | Detail |
|---|---|
| Zero address | All address params reject address(0)? |
| Zero amount | Fund transfers reject zero amounts? |
| Array bounds | Paired arrays validated for matching length? |
| Arbitrary call | No unvalidated address.call(data) where attacker controls data? |
| Numeric bounds | Inputs bounded to prevent dust attacks or gas griefing? |
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.
- 1mo ago First seen · 392 lines · 55 tokens per session scan A 6e44edff2e1c
solidity-audit is a skill published in the GitHub repository 0xlayerghost/solidity-agent-kit (4 stars, last pushed 27d ago), licensed MIT. It adds 55 tokens to every session and 6,445 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. It is 91% identical to solidity-audit, differing in 38 lines, and is treated as a copy.
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