ev-certificate-validator

SkillDev tools

Validate EV code signing certificate chain and timestamp for Windows SmartScreen

Instructions available. Your AI can read the instructions. Execution depends on the setup they require.

Add ahel to your AI once: Claude, ChatGPT, Cursor, Claude Code or Codex. Then ask it to use this.

Then ask your AI: use the ev-certificate-validator skill

What this skill tells your AI

The instructions your AI receives, as published by a5c-ai/babysitter in library/specializations/desktop-development/skills/ev-certificate-validator/SKILL.md and read by ahel’s review.

Validate EV (Extended Validation) code signing certificate chain and timestamp to ensure Windows SmartScreen compatibility.

Capabilities

  • Verify certificate chain validity
  • Check timestamp presence and validity
  • Validate EV certificate attributes
  • Check certificate expiration
  • Verify signature algorithm strength
  • Validate publisher information

Input Schema

{
  "type": "object",
  "properties": {
    "signedFile": { "type": "string" },
    "checkSmartScreen": { "type": "boolean", "default": true }
  },
  "required": ["signedFile"]
}

Validation Commands

# Verify signature with chain
signtool verify /pa /all /v signed.exe

# Check certificate details
certutil -dump signed.exe

# Verify timestamp
signtool verify /pa /tw signed.exe

Related Skills

  • windows-authenticode-signer
  • code-signing-setup process

Signals

GitHub stars
2k
Forks
112
Last commit
Sep 2026
Advanced
Item type
skill
Key
ev-certificate-validator
Source
github.com/a5c-ai/babysitter