# integrity-failures

> Claude/Codex skill by [@thejefflarson](https://omgskills.com/library/thejefflarson/index.md) · 20 stars · Updated 2026-07-31

Detects unsafe deserialization, unverified software updates, and tampered CI artifacts. Use when writing deserialization code, processing pickled or marshalled data, implementing software update mechanisms, consuming CI/CD artifact downloads, or handling data from untrusted sources that gets reconstructed into objects.

Tags: llms, security, skills

## Install

```sh
git clone https://github.com/thejefflarson/soundcheck /tmp/soundcheck && ln -s /tmp/soundcheck/.claude/skills/integrity-failures ~/.claude/skills/integrity-failures
```

## From README

Software and Data Integrity Failures Security Check (A08:2025) What this checks Protects against arbitrary code execution and tampered artifacts. Deserializing untrusted data with code-executing formats gives attackers remote code execution; unsigned software updates allow supply-chain compromise.

## Links

- HTML page: https://omgskills.com/library/thejefflarson/soundcheck/dot-claude/skills/integrity-failures/
- GitHub: https://github.com/thejefflarson/soundcheck
- Author: [@thejefflarson](https://omgskills.com/library/thejefflarson/index.md)

## More from this repo

- [authentication-failures](https://omgskills.com/library/thejefflarson/soundcheck/dot-claude/skills/authentication-failures/index.md) — Detects weak password storage, flawed JWT validation, sessions surviving logout, and missing MFA in authentication code.
   - [@thejefflarson](https://omgskills.com/library/thejefflarson/index.md) · 20 stars
- [broken-access-control](https://omgskills.com/library/thejefflarson/soundcheck/dot-claude/skills/broken-access-control/index.md) — Detects missing ownership checks, broken role enforcement, and IDOR vulnerabilities that let users access other users'...
   - [@thejefflarson](https://omgskills.com/library/thejefflarson/index.md) · 20 stars
- [concurrency-correctness](https://omgskills.com/library/thejefflarson/soundcheck/dot-claude/skills/concurrency-correctness/index.md) — Detects multi-threaded code where a lock is held across a blocking operation, lock acquisition order risks deadlock,...
   - [@thejefflarson](https://omgskills.com/library/thejefflarson/index.md) · 20 stars