Agent skill

Solidity Vulnerability Scanner

by alt-research2 in alt-research2/SolidityGuard

Comprehensive Solidity contract security scanner detecting 104 vulnerability patterns across reentrancy, access control, arithmetic, DeFi, proxy, and token categories.

Custom licenceAuto-check: notesBackend & APIs

Install Solidity Vulnerability Scanner

skills CLI
$ npx skills add alt-research2/SolidityGuard --skill solidity-vulnerability-scanner -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install alt-research2/SolidityGuard solidity-vulnerability-scanner --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/alt-research2/SolidityGuard.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.claude/skills/solidity-guard/skills/vulnerability-scanner .claude/skills/solidity-vulnerability-scanner && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
solidity-vulnerability-scanner
GitHub stars
104
Token cost
~1.6k tokens
SKILL.md length
392 words
Files
2
Skills in repo
7
Repo updated
First seen
Licence
Custom licence

At a glance

Comprehensive Solidity contract security scanner detecting 104 vulnerability patterns across reentrancy, access control, arithmetic, DeFi, proxy, and token categories.

  • Works in 6 steps: Purpose → When to Use → Scanning Workflow → …
  • Tasks that involve Vulnerability scanning
  • SKILL.md covers 1. Purpose, 2. When to Use, 3. Scanning Workflow and 4. Vulnerability Patterns (97…, plus 2 more sections
  • Calls rg

What it does

Solidity Vulnerability Scanner is an agent skill from alt-research2/SolidityGuard. Comprehensive Solidity contract security scanner detecting 104 vulnerability patterns across reentrancy, access control, arithmetic, DeFi, proxy, and token categories. Integrates Slither, Aderyn, and Mythril with manual analysis.

Its SKILL.md is about 1.6k tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `resources/VULNERABILITY_PATTERNS.md`).

It sits in Backend & APIs, covering Vulnerability scanning, Smart contracts and Smart contract auditing. It works with Solidity. The repository describes itself as: Solidity/EVM smart contract security auditor — 104 vulnerability patterns, 8 tools, 100% CTF + EVMBench benchmark (120/120).

When your agent uses it

  • Tasks that involve Vulnerability scanning
  • Tasks that involve Smart contracts
  • Tasks that involve Smart contract auditing

Example prompts

  • “/solidity-vulnerability-scanner”

Requirements

  • Pre-approved tools (allowed-tools): Read, Grep, Glob, Bash, Write

Workflow steps

6 steps, taken from the step headings in SKILL.md.

  1. Purpose
  2. When to Use
  3. Scanning Workflow
  4. Vulnerability Patterns (97 Total)
  5. Confidence Scoring
  6. Finding Format

What it can do on your machine

Read from SKILL.md and the folder at commit 35645e8. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves these tools, so the agent can use them without asking each time:

    • Read
    • Grep
    • Glob
    • Bash
    • Write

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • rg

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Solidity Vulnerability Scanner loads about 1.6k tokens when it runs. Until then it costs about 65 tokens; SKILL.md has 392 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~65
When it runs · the whole SKILL.md, loaded when a task matches
~1.6k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check: notes

The automated check noted patterns worth knowing about, such as sudo or a known installer.

  • NotePre-approves every shell command (allowed-tools: Bash)SKILL.md
    allowed-tools: Read, Grep, Glob, Bash, Write

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Its licence (Custom licence) doesn't allow us to republish the file, so here is its outline and opening line. It has 392 words (~1,577 tokens).

“Systematically scan Solidity contracts for 104 security vulnerabilities using multi-tool detection: Slither + Aderyn + Mythril + manual pattern matching. All findings require evidence with exact file:line citations.”

— opening of SKILL.md by alt-research2, Custom licence
name
solidity-vulnerability-scanner
allowed-tools
Read, Grep, Glob, Bash, Write

Read the full SKILL.md on GitHub

Files

SKILL.md and 1 other file in .claude/skills/solidity-guard/skills/vulnerability-scanner of alt-research2/SolidityGuard.

  • SKILL.md
  • resources/VULNERABILITY_PATTERNS.md

Open the folder on GitHubat commit 35645e8

Compare with similar skills

Solidity Vulnerability Scanner next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Solidity Vulnerability Scanner compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Solidity Vulnerability Scanner this skillalt-research2/SolidityGuard104—~1.6kAutomated safety check: NotesCustom licence
Solidity Securityccashwell/evm-cortex131—~1.5kAutomated safety check: PassMIT
Smart Contract Auditelophanto/EloPhanto106—~2.7kAutomated safety check: PassCustom licence
Pashov Audit Pipelineccashwell/evm-cortex131—~5.5kAutomated safety check: PassMIT
Defi Amm Securityaffaan-m/ECC275k1 repos~1.3kAutomated safety check: PassMIT
Fizz Convertpashov/skills1.2k2 repos~3.7kAutomated safety check: PassMIT

Similar skills

  • Solidity Security

    ccashwell/evm-cortex

    Security-focused Solidity development patterns. An agent skill from ccashwell/evm-cortex.

    131 GitHub stars~1.5k tokensUpdated 9 days ago
    Backend & APIsAuto-check passed
  • Smart Contract Audit

    elophanto/EloPhanto

    A skill your agent uses when reviewing a Solidity, Vyper, or Rust (Solana/Anchor) smart contract for paid audit work or pre-launch sanity check.

    106 GitHub stars~2.7k tokensUpdated 7 days ago
    SecurityAuto-check passed
  • Pashov Audit Pipeline

    ccashwell/evm-cortex

    A skill your agent uses when performing a comprehensive smart contract security audit.

    131 GitHub stars~5.5k tokensUpdated 9 days ago
    Backend & APIsAuto-check passed
  • Defi Amm Security

    affaan-m/ECC

    Security checklist for Solidity AMM contracts, liquidity pools, and swap flows.

    275k GitHub starsUsed in 1 repo~1.3k tokens
    Business, Finance & HRAuto-check passed
  • Fizz Convert

    pashov/skills

    Convert English-language properties in PROPERTIES.md (produced by the Fizz skill) into Solidity assertions inside the existing fuzz harness, then flip their checkboxes.

    1.2k GitHub starsUsed in 2 repos~3.7k tokens
    Backend & APIsAuto-check passed
  • Smart Contract Audit

    greatpie/smart-contract-audit-skill

    Script-backed, out-of-box auditing workflow for Solidity/EVM repositories based on EVMbench detect/patch/exploit methodology.

    101 GitHub stars~1.1k tokensUpdated 7 mo ago
    Backend & APIsAuto-check passed

More from alt-research2/SolidityGuard

  • Storage Analyzer

    alt-research2/SolidityGuard

    Analyzes storage layout, proxy patterns, and state variable security in Solidity contracts.

    104 GitHub stars~1.3k tokensUpdated 3 mo ago
    Auto-check: notes
  • Entry Point Analyzer

    alt-research2/SolidityGuard

    Analyzes Solidity contract entry points to map attack surface.

    104 GitHub stars~959 tokensUpdated 3 mo ago
    Auto-check passed
  • Fuzz Generator

    alt-research2/SolidityGuard

    Generates Foundry invariant tests and Echidna property-based fuzz tests for Solidity contracts.

    104 GitHub stars~763 tokensUpdated 3 mo ago
    Auto-check: notes
  • Reentrancy Auditor

    alt-research2/SolidityGuard

    Deep reentrancy vulnerability analysis for Solidity contracts.

    104 GitHub stars~1.8k tokensUpdated 3 mo ago
    Auto-check passed
  • Report Generator

    alt-research2/SolidityGuard

    Generates professional security audit reports from findings.

    104 GitHub stars~1k tokensUpdated 3 mo ago
    Auto-check passed
  • Spec Compliance

    alt-research2/SolidityGuard

    Validates Solidity implementation against specification documents.

    104 GitHub stars~503 tokensUpdated 3 mo ago
    Auto-check passed

Works with

Questions about Solidity Vulnerability Scanner

What does Solidity Vulnerability Scanner do?

Comprehensive Solidity contract security scanner detecting 104 vulnerability patterns across reentrancy, access control, arithmetic, DeFi, proxy, and token categories. Solidity Vulnerability Scanner is an agent skill from alt-research2/SolidityGuard. Comprehensive Solidity contract security scanner detecting 104 vulnerability patterns across reentrancy, access control, arithmetic, DeFi, proxy, and token categories.

When should I use Solidity Vulnerability Scanner?

Solidity Vulnerability Scanner fits situations like: tasks that involve Vulnerability scanning; tasks that involve Smart contracts; tasks that involve Smart contract auditing.

How do I install Solidity Vulnerability Scanner in Claude Code?

Run `npx skills add alt-research2/SolidityGuard --skill solidity-vulnerability-scanner -a claude-code`. Or copy the skill folder (.claude/skills/solidity-guard/skills/vulnerability-scanner in alt-research2/SolidityGuard) into .claude/skills/solidity-vulnerability-scanner in your project. Claude Code loads it when a task matches its description.

How do I install Solidity Vulnerability Scanner in Codex?

Run `npx skills add alt-research2/SolidityGuard --skill solidity-vulnerability-scanner -a codex`. Or copy the skill folder (.claude/skills/solidity-guard/skills/vulnerability-scanner in alt-research2/SolidityGuard) into .agents/skills/solidity-vulnerability-scanner in your project. Codex loads it when a task matches its description.

Can I use Solidity Vulnerability Scanner in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add alt-research2/SolidityGuard --skill solidity-vulnerability-scanner -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/solidity-vulnerability-scanner, .gemini/skills/solidity-vulnerability-scanner, .github/skills/solidity-vulnerability-scanner and .opencode/skills/solidity-vulnerability-scanner in your project.

What does Solidity Vulnerability Scanner need to run?

Going by SKILL.md and its folder, Solidity Vulnerability Scanner needs the command-line tools its instructions call (rg). Its frontmatter pre-approves these tools: Read, Grep, Glob, Bash, Write.

Does Solidity Vulnerability Scanner access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Solidity Vulnerability Scanner safe to install?

Our automated static check of SKILL.md found notes only (pre-approves every shell command (allowed-tools: bash)), nothing it rates as a warning. It is not a guarantee. Review the folder before installing.

What licence does Solidity Vulnerability Scanner use?

Solidity Vulnerability Scanner has a licence file (the repository's licence) that doesn't match a standard licence. Read it on GitHub before reusing the skill.

How many tokens does Solidity Vulnerability Scanner use?

About 1.6k tokens (SKILL.md is roughly 6.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Solidity Vulnerability Scanner?

Skills that share tags, products or a category with Solidity Vulnerability Scanner: Solidity Security (ccashwell/evm-cortex, 131 stars), Smart Contract Audit (elophanto/EloPhanto, 106 stars), Pashov Audit Pipeline (ccashwell/evm-cortex, 131 stars) and Defi Amm Security (affaan-m/ECC, 275k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Solidity Vulnerability Scanner?

alt-research2 (a GitHub organization) maintains it in alt-research2/SolidityGuard, which has 104 GitHub stars. The repository holds 7 skills in this directory. The repository was last updated on June 12, 2026.

Source: alt-research2/SolidityGuard on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.