algorand-vulnerability-scanner SKILL.md skillA

algorand-vulnerability-scanner from trailofbits/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add trailofbits/skills/algorand-vulnerability-scanner@git:20260831.6feac67

Pins git:20260831.6feac67 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
trailofbits/skills
Path
plugins/building-secure-contracts/skills/algorand-vulnerability-scanner/SKILL.md
Versions recorded
5
Latest version
git:20260831.6feac67, committed Aug 31, 2026
First version recorded
Jan 26, 2026
Size
12,593 bytes
Repository stars
7,698
License
CC-BY-SA-4.0

Scans Algorand smart contracts for 11 common vulnerabilities including rekeying attacks, unchecked transaction fees, missing field validations, and access control issues. Use when auditing Algorand projects (TEAL/PyTeal).

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

# Algorand Vulnerability Scanner

## 1. Purpose

Systematically scan Algorand smart contracts (TEAL and PyTeal) for platform-specific security vulnerabilities documented in Trail of Bits' "Not So Smart Contracts" database. This skill encodes 11 critical vulnerability patterns unique to Algorand's transaction model.

## 2. When to Use This Skill

- Auditing Algorand smart contracts (stateful applications or smart signatures)
- Reviewing TEAL assembly or PyTeal code
- Pre-audit security assessment of Algorand projects
- Validating fixes for reported Algorand vulnerabilities
- Training team on Algorand-specific security patterns

## 3. Platform Detection

### File Extensions & Indicators
- **TEAL files**: `.teal`
- **PyTeal files**: `.py` with PyTeal imports

### Language/Framework Markers
```python
# PyTeal indicators
from pyteal import *
from algosdk import *

# Common patterns
Txn, Gtxn, Global, InnerTxnBuilder
OnComplete, ApplicationCall, TxnType
@router.method, @Subroutine
```

### Project Structure
- `approval_program.py` / `clear_program.py`
- `contract.teal` / `signature.teal`
- References to Algorand SDK or Beaker framework

### Tool Support
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add trailofbits/skills/algorand-vulnerability-scanner@sha256:751082b27bda3773

The line at the top of this page pins the label git:20260831.6feac67, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_bzgsl4ego4tcxlpl.svg)](https://markdownregistry.com/a/art_bzgsl4ego4tcxlpl)

1 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 5 versions of this file, between Jan 26, 2026 and Aug 31, 2026, about one every 54 days.

versioncommittedcommitsizeaudit
git:20260831.6feac67 latest2026-08-31 6feac67 12,593 BA view · diff
git:20260820.7be90d62026-08-20 7be90d6 8,935 BA view · diff
git:20260819.9e06dc62026-08-19 9e06dc6 8,927 BA view · diff
git:20260129.650f6e32026-01-29 650f6e3 8,886 BA view · diff
git:20260126.7af5b1b2026-01-26 7af5b1b 8,908 BA view

Audit of the latest version

A  17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.
  • pass: Frontmatter block present
  • pass: Frontmatter declares a name
  • pass: Frontmatter declares a description
  • pass: Size between 200 bytes and 200 KB (12593 bytes)
  • pass: No zero-width or bidi control characters
  • pass: No instruction hidden inside an HTML comment
  • pass: No link to an exfiltration or paste host
  • pass: No credential-shaped string
  • pass: No instruction to send local credentials anywhere
  • pass: No text hidden with inline styles
  • pass: No prompt-injection phrasing
  • pass: No curl or wget piped into a shell
  • pass: No recursive delete of root, home or parent
  • pass: No instruction to read or print local credentials
  • pass: No base64 blob over 200 characters
  • pass: No link to a raw IP address
  • pass: No script tag

Source

GitHub

trailofbits/skills · 7,698 stars · license CC-BY-SA-4.0 · pushed 2026-10-22 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_bzgsl4ego4tcxlpl
GET https://markdownregistry.com/api/v1/resolve?ref=trailofbits/skills/algorand-vulnerability-scanner
GET https://markdownregistry.com/api/v1/blob/751082b27bda377339dee7daa38009e98c224e11cf51738288f7ff6d8f670ffb

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.

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