ev-certificate-validator

Validate EV code signing certificate chain and timestamp for Windows SmartScreen

509 stars

Best use case

ev-certificate-validator is best used when you need a repeatable AI agent workflow instead of a one-off prompt.

Validate EV code signing certificate chain and timestamp for Windows SmartScreen

Teams using ev-certificate-validator should expect a more consistent output, faster repeated execution, less prompt rewriting.

When to use this skill

You want a reusable workflow that can be run more than once with consistent structure.

When not to use this skill

You only need a quick one-off answer and do not need a reusable workflow.
You cannot install or maintain the underlying files, dependencies, or repository context.

Installation

Claude Code / Cursor / Codex

$curl -o ~/.claude/skills/ev-certificate-validator/SKILL.md --create-dirs "https://raw.githubusercontent.com/a5c-ai/babysitter/main/library/specializations/desktop-development/skills/ev-certificate-validator/SKILL.md"

Manual Installation

Download SKILL.md from GitHub
Place it in .claude/skills/ev-certificate-validator/SKILL.md inside your project
Restart your AI agent — it will auto-discover the skill

How ev-certificate-validator Compares

Feature / Agent	ev-certificate-validator	Standard Approach
Platform Support	Not specified	Limited / Varies
Context Awareness	High	Baseline
Installation Complexity	Unknown	N/A

Frequently Asked Questions

What does this skill do?

Validate EV code signing certificate chain and timestamp for Windows SmartScreen

Where can I find the source code?

You can find the source code on GitHub using the link provided at the top of the page.

SKILL.md Source

# 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

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