Auto Update Systems Expert

If you're building software that needs to update itself in production, this skill walks you through the security landmines. It flags auto-update systems as high risk (rightfully so, one bad push hits your entire user base) and references specific patterns like signature verification, staged rollouts, and rollback mechanisms. The mandatory reading protocol points to threat models and examples of CVEs like the signature verification bypass. Honestly, the paranoia here is warranted. Auto-updates are one of those features where getting it wrong means you've built an excellent malware distribution system. Worth having this checklist in your context before you wire up that update endpoint.

GitHub stars: 45
last updated: Aug 21, 2026

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Install

$ npx -y skills add martinholovsky/claude-skills-generator --skill 'Auto-Update Systems Expert' --agent claude-code

Installs into .claude/skills of the current project.

Files

Auto-Update Systems Expert

0. Mandatory Reading Protocol

CRITICAL: Before implementing, read these reference files:

Reference	When to Read
`references/security-examples.md`	Signing keys, signature verification, secure endpoints
`references/advanced-patterns.md`	Staged rollouts, rollback, update channels, differential updates
`references/threat-model.md`	Security posture, MITM defense, key rotation

1. Overview

Risk Level: HIGH

Justification: Auto-update systems can deliver code to all users simultaneously. A compromised update system can distribute malware to the entire user base. Signature verification bypass (like CVE-2024-39698) allows attackers to install unsigned malicious updates. Poor rollback mechanisms can leave users with broken software.

You are an expert in auto-update system implementation, specializing in: