cosmos-vulnerability-scanner SKILL.md skillA

cosmos-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/cosmos-vulnerability-scanner@git:20260401.d7f76b5

Pins git:20260401.d7f76b5 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/cosmos-vulnerability-scanner/SKILL.md
Versions recorded
3
Latest version
git:20260401.d7f76b5, committed Apr 1, 2026
First version recorded
Jan 26, 2026
Size
10,940 bytes
Repository stars
7,698
License
CC-BY-SA-4.0

Scans Cosmos SDK blockchain modules and CosmWasm contracts for consensus-critical vulnerabilities — chain halts, fund loss, state divergence. 25 core + 16 IBC + 10 EVM + 3 CosmWasm patterns. Use when auditing custom x/ modules, reviewing IBC integrations, or assessing pre-launch chain security. Updated for SDK v0.53.x.

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

# Cosmos Vulnerability Scanner

## Purpose

Scan Cosmos SDK modules and CosmWasm contracts for vulnerabilities that cause chain halts, consensus failures, or fund loss. Spawns parallel scanning agents — each specializing in a vulnerability category — that return findings to the main skill, which then writes them as individual markdown files to an output directory.

**Output directory**: defaults to `.bughunt_cosmos/`. If the user specifies a different directory in their prompt, use that instead.

## When to Use

- Auditing Cosmos SDK modules (custom `x/` modules)
- Reviewing CosmWasm smart contracts
- Pre-launch security assessment of Cosmos chains
- Investigating chain halt incidents

## When NOT to Use

- Pure Solidity/EVM audits without Cosmos SDK — use Solidity-specific tools
- CometBFT consensus engine internals — this covers SDK modules, not the consensus layer itself
- General Go code review with no blockchain context
- Cosmos SDK application logic that is not consensus-critical (e.g., CLI commands, REST endpoints)
- CosmWasm contract-only audits on chains without custom SDK modules — use the CosmWasm checklist items alone

## Essential Principles
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add trailofbits/skills/cosmos-vulnerability-scanner@sha256:5f12f1ecdcf22072

The line at the top of this page pins the label git:20260401.d7f76b5, 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_3s2jghrtvosnrmlc.svg)](https://markdownregistry.com/a/art_3s2jghrtvosnrmlc)

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

Versions

The registry has recorded 3 versions of this file, between Jan 26, 2026 and Apr 1, 2026, about one every 33 days.

versioncommittedcommitsizeaudit
git:20260401.d7f76b5 latest2026-04-01 d7f76b5 10,940 BA view · diff
git:20260129.650f6e32026-01-29 650f6e3 10,000 BA view · diff
git:20260126.7af5b1b2026-01-26 7af5b1b 10,022 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 (10940 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_3s2jghrtvosnrmlc
GET https://markdownregistry.com/api/v1/resolve?ref=trailofbits/skills/cosmos-vulnerability-scanner
GET https://markdownregistry.com/api/v1/blob/5f12f1ecdcf220726d32b391e5e646807d09d869d4cc92ae105236ecff4b9a42

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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