ai-scanner-garak

---
name: ai-scanner-garak
description: AI model safety scanner built on NVIDIA garak for testing LLMs against 179 security probes across 35 vulnerability families
triggers:
  - scan an AI model for vulnerabilities
  - test LLM security with garak
  - run AI safety assessment
  - set up ai-scanner for penetration testing
  - configure AI model security scanning
  - check LLM for OWASP top 10 vulnerabilities
  - schedule recurring AI security scans
  - export AI scan results to PDF or SIEM
---

# AI Scanner (0din-ai/ai-scanner)

> Skill by [ara.so](https://ara.so) — Daily 2026 Skills collection.

AI Scanner is an open-source Ruby on Rails web application for AI model security assessments, wrapping [NVIDIA garak](https://github.com/NVIDIA/garak) with a multi-tenant UI, scheduling, PDF reports, and SIEM integration. It runs 179 community probes across 35 vulnerability families aligned with the OWASP LLM Top 10.

## Installation

### Quick Install (Docker)

```bash
curl -sL https://raw.githubusercontent.com/0din-ai/ai-scanner/main/scripts/install.sh | bash
```

### Manual Install

```bash
curl -O https://raw.githubusercontent.com/0din-ai/ai-scanner/main/dist/docker-compose.yml
curl -O https://raw.githubusercontent.com/0din-ai/ai-scanner/main/.env.example
cp .env.example .env
```

Edit `.env` with required values:

```bash
# Generate a secure key
openssl rand -hex 64

# .env minimum required values
SECRET_KEY_BASE=<output_of_above_command>
POSTGRES_PASSWORD=<your_secure_db_password>
```

```bash
docker compose up -d
```

Access at `http://localhost` — default credentials: `admin@example.com` / `password`.  
**Change the default password immediately after first login.**

## Configuration (.env)

```bash
# Required
SECRET_KEY_BASE=<64-byte-hex>
POSTGRES_PASSWORD=<strong-password>

# Optional: custom port
PORT=8080

# Optional: SIEM integration
SPLUNK_HEC_URL=https://splunk.example.com:8088/services/collector
SPLUNK_HEC_TOKEN=$SPLUNK_HEC_TOKEN
RSYSLOG_HOST=syslog.example.com
RSYSLOG_PORT=514

# Optional: email
SMTP_HOST=smtp.example.com
SMTP_PORT=587
SMTP_USERNAME=$SMTP_USERNAME
SMTP_PASSWORD=$SMTP_PASSWORD
```

## Core Concepts

| Concept | Description |
|---|---|
| **Target** | An AI system to test — API-based LLM or browser-based chat UI |
| **Probe** | A single attack test (e.g., prompt injection, data leakage) |
| **Scan** | A run of selected probes against a target |
| **ASR** | Attack Success Rate — percentage of probes that succeeded |
| **Organization** | Tenant boundary; users and scans are scoped per org |

## Setting Up a Target

Targets define what you're scanning. Two types:

**API-based LLM Target** (e.g., OpenAI-compatible endpoint):

```ruby
# In Rails console or via UI — representative model
target = Target.create!(
  name: "Production GPT-4",
  target_type: "api",
  api_endpoint: "https://api.openai.com/v1/chat/completions",
  api_key: ENV["OPENAI_API_KEY"],
  model_name: "gpt-4",
  organization: current_organization
)
```

**Browser-based Chat UI Target**:

```ruby
target = Target.create!(
  name: "Internal Chatbot UI",
  target_type: "browser",
  url: "https://chatbot.internal.example.com",
  organization: current_organization
)
```

## Running a Scan

### Via UI

1. Navigate to **Targets** → select your target
2. Click **New Scan**
3. Select probe families or individual probes
4. Click **Run Scan**

### Via Rails Console

```ruby
# On-demand scan with specific probe families
scan = Scan.create!(
  target: target,
  probe_families: ["prompt_injection", "data_leakage", "insecure_output"],
  organization: current_organization
)
ScanJob.perform_later(scan.id)
```

### Scheduled Recurring Scan

```ruby
# Weekly scan every Monday at 2am
scheduled_scan = ScheduledScan.create!(
  target: target,
  probe_families: ["prompt_injection", "jailbreak"],
  cron_expression: "0 2 * * 1",
  organization: current_organization
)
```

## Probe Families (35 total, aligned to OWASP LLM Top 10)

Key probe families available:

```ruby
# List all available probe families
Garak::ProbeRegistry.families
# => ["prompt_injection", "jailbreak", "data_leakage", "insecure_output",
#     "supply_chain", "sensitive_info", "excessive_agency", "overreliance",
#     "model_theft", "malicious_plugins", ...]

# Get probes within a family
Garak::ProbeRegistry.probes_for("prompt_injection")
# => 179 total probes across all families
```

## Viewing Results

### Attack Success Rate (ASR)

```ruby
scan = Scan.find(scan_id)

puts scan.asr_score          # => 0.23 (23% attack success rate)
puts scan.status             # => "completed"
puts scan.probe_results.count # => 47

# Per-probe breakdown
scan.probe_results.each do |result|
  puts "#{result.probe_name}: #{result.passed? ? 'SAFE' : 'VULNERABLE'}"
  puts "  Attempts: #{result.attempt_count}"
  puts "  ASR: #{result.asr_score}"
end
```

### Trend Tracking

```ruby
# Compare ASR across scan runs for a target
target.scans.completed.order(:created_at).map do |scan|
  { date: scan.created_at, asr: scan.asr_score }
end
```

## PDF Report Export

```ruby
# Generate PDF report for a scan
scan = Scan.find(scan_id)
pdf_path = ReportExporter.export_pdf(scan)
# Includes: executive summary, per-probe results, per-attempt drill-down
```

Via UI: Navigate to a completed scan → **Export PDF**.

## SIEM Integration

### Splunk

```ruby
# config/initializers/siem.rb
SiemIntegration.configure do |config|
  config.provider = :splunk
  config.splunk_hec_url = ENV["SPLUNK_HEC_URL"]
  config.splunk_hec_token = ENV["SPLUNK_HEC_TOKEN"]
  config.forward_on_completion = true
end
```

### Rsyslog

```ruby
SiemIntegration.configure do |config|
  config.provider = :rsyslog
  config.rsyslog_host = ENV["RSYSLOG_HOST"]
  config.rsyslog_port = ENV["RSYSLOG_PORT"].to_i
end
```

## Multi-Tenant Organization Management

```ruby
# Create a new organization
org = Organization.create!(name: "Security Team Alpha")

# Invite a user
user = User.invite!(
  email: "analyst@example.com",
  organization: org,
  role: "analyst"   # roles: "admin", "analyst", "viewer"
)

# Data is encrypted at rest per organization
org.encryption_key  # => managed automatically
```

## Development Setup

```bash
git clone https://github.com/0din-ai/ai-scanner.git
cd ai-scanner
cp .env.example .env.development

# Install dependencies
bundle install

# Database setup
rails db:create db:migrate db:seed

# Install garak (Python dependency)
pip install garak

# Start development server
bin/dev
```

### Running Tests

```bash
# Full test suite
bundle exec rspec

# Specific area
bundle exec rspec spec/models/scan_spec.rb
bundle exec rspec spec/jobs/scan_job_spec.rb

# Lint
bundle exec rubocop
```

## Common Patterns

### Testing a New LLM Before Deployment

```ruby
# Comprehensive pre-deployment scan
target = Target.create!(
  name: "New Model v2 - Pre-deploy",
  target_type: "api",
  api_endpoint: ENV["NEW_MODEL_ENDPOINT"],
  api_key: ENV["NEW_MODEL_API_KEY"],
  model_name: "new-model-v2",
  organization: current_organization
)

# Run all 35 probe families
scan = Scan.create!(
  target: target,
  probe_families: Garak::ProbeRegistry.families,
  organization: current_organization
)
ScanJob.perform_now(scan.id)

if scan.reload.asr_score > 0.15
  puts "WARNING: ASR #{scan.asr_score} exceeds threshold. Review before deploying."
else
  puts "PASS: Model meets security threshold."
end
```

### Using the Mock LLM for Testing Scanner Setup

The built-in Mock LLM lets you validate your scanner configuration without hitting real APIs:

```ruby
target = Target.create!(
  name: "Mock LLM",
  target_type: "mock",
  organization: current_organization
)
# Run a quick scan to verify everything works end-to-end
```

### Webhook on Scan Completion

```ruby
# config/initializers/scan_hooks.rb
ActiveSupport::Notifications.subscribe("scan.completed") do |_, _, _, _, payload|
  scan = Scan.find(payload[:scan_id])
  if scan.asr_score > 0.20
    SlackNotifier.alert(
      channel: "#security-alerts",
      message: "High ASR detected: #{scan.asr_score} on #{scan.target.name}"
    )
  end
end
```

## Docker Compose Production Tips

```yaml
# docker-compose.override.yml — production additions
services:
  web:
    environment:
      RAILS_ENV: production
      FORCE_SSL: "true"
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.scanner.rule=Host(`scanner.example.com`)"
      - "traefik.http.routers.scanner.tls.certresolver=letsencrypt"
```

```bash
# Upgrade
docker compose pull
docker compose up -d
docker compose exec web rails db:migrate
```

## Troubleshooting

| Problem | Solution |
|---|---|
| Scan stuck in "running" | Check `docker compose logs worker` — garak Python process may have crashed |
| `SECRET_KEY_BASE` error on start | Run `openssl rand -hex 64` and set in `.env` |
| Can't connect to target API | Verify API key env var is set; check firewall allows outbound from container |
| Browser target scan fails | Ensure Playwright/Chrome is available in the worker container |
| PDF export blank | Check `wkhtmltopdf` is installed in the web container |
| SIEM not receiving events | Verify `SPLUNK_HEC_URL` includes full path `/services/collector` |

```bash
# View all service logs
docker compose logs -f

# Check worker specifically (runs garak)
docker compose logs -f worker

# Rails console for debugging
docker compose exec web rails console

# Check garak is working
docker compose exec worker python -c "import garak; print(garak.__version__)"
```

## Key Files (for Contributors)

```
app/
  models/
    scan.rb          # Core scan model, ASR calculation
    target.rb        # Target types and validation
    probe_result.rb  # Per-probe result storage
  jobs/
    scan_job.rb      # Async job that invokes garak
  services/
    garak_runner.rb  # Ruby wrapper around garak CLI
    report_exporter.rb
    siem_integration.rb
lib/
  garak/
    probe_registry.rb  # 179 probes, 35 families
dist/
  docker-compose.yml   # Production compose file
scripts/
  install.sh           # One-line installer
```

## Resources

- [Full Documentation](https://0din-ai.github.io/ai-scanner/)
- [Quick Start Guide](https://0din-ai.github.io/ai-scanner/getting-started/quick-start)
- [NVIDIA garak](https://github.com/NVIDIA/garak)
- [OWASP LLM Top 10](https://owasp.org/www-project-top-10-for-large-language-model-applications/)
- [CONTRIBUTING.md](https://github.com/0din-ai/ai-scanner/blob/main/CONTRIBUTING.md)
- [SECURITY.md](https://github.com/0din-ai/ai-scanner/blob/main/SECURITY.md)