Free SKILL.md scraped from GitHub. Clone the repo or copy the file directly into your Claude Code skills directory.
npx versuz@latest install a5c-ai-babysitter-library-specializations-desktop-development-skills-ev-certificatgit clone https://github.com/a5c-ai/babysitter.gitcp babysitter/SKILL.MD ~/.claude/skills/a5c-ai-babysitter-library-specializations-desktop-development-skills-ev-certificat/SKILL.md---
name: ev-certificate-validator
description: Validate EV code signing certificate chain and timestamp for Windows SmartScreen
allowed-tools: Read, Grep, Bash
tags: [windows, codesigning, ev-certificate, security, validation]
---
# ev-certificate-validator
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
```json
{
"type": "object",
"properties": {
"signedFile": { "type": "string" },
"checkSmartScreen": { "type": "boolean", "default": true }
},
"required": ["signedFile"]
}
```
## Validation Commands
```powershell
# 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