Skill

/substrate-vulnerability-scanner

Scans Substrate/Polkadot pallets for 7 critical vulnerabilities including arithmetic overflow, panic DoS, incorrect weights, and bad origin checks. Use when auditing Substrate runtimes or FRAME pallets.

One skill from trailofbits-skills.

shell

$ npx -y skills add trailofbits/skills --skill substrate-vulnerability-scanner --agent claude-code

Installs just this skill. Get the whole plugin for auto-invocation.

How it fires

How this skill gets triggered: by you, by Claude, or both.

Fires itselfClaude auto-loads it when your prompt matches the work.
You can call itInvoke it directly when you want it.
Slash command/substrate-vulnerability-scanner

Context preview

The summary Claude sees to decide when to auto-load this skill.

Scans Substrate/Polkadot pallets for 7 critical vulnerabilities including arithmetic overflow, panic DoS, incorrect weights, and bad origin checks. Use when auditing Substrate runtimes or FRAME pallets.

Stats

Stars6,228

Forks540

LanguagePython

LicenseCC-BY-SA-4.0

Ships with trailofbits-skills

SKILL.md

substrate-vulnerability-scanner.SKILL.md

---
name: substrate-vulnerability-scanner
description: Scans Substrate/Polkadot pallets for 7 critical vulnerabilities including arithmetic overflow, panic DoS, incorrect weights, and bad origin checks. Use when auditing Substrate runtimes or FRAME pallets.
---

# Substrate Vulnerability Scanner

## 1. Purpose

Systematically scan Substrate runtime modules (pallets) for platform-specific security vulnerabilities that can cause node crashes, DoS attacks, or unauthorized access. This skill encodes 7 critical vulnerability patterns unique to Substrate/FRAME-based chains.

## 2. When to Use This Skill

- Auditing custom Substrate pallets
- Reviewing FRAME runtime code
- Pre-launch security assessment of Substrate chains (Polkadot parachains, standalone chains)
- Validating dispatchable extrinsic functions
- Reviewing weight calculation functions
- Assessing unsigned transaction validation logic

## 3. Platform Detection

### File Extensions & Indicators
- **Rust files**: `.rs`

### Language/Framework Markers
```rust
// Substrate/FRAME indicators
#[pallet]
pub mod pallet {
    use frame_support::pallet_prelude::*;
    use frame_system::pallet_prelude::*;