{"type": "article", "title": "L1.9: I built a prompt injection firewall for AI agents (28 detection rules)", "publisher": "Web Pulse", "url": "https://wpnews.pro/news/l1-9-i-built-a-prompt-injection-firewall-for-ai-agents-28-detection-rules", "original_source": "https://dev.to/edison_flores_6d2cd381b13/l19-i-built-a-prompt-injection-firewall-for-ai-agents-28-detection-rules-18nb", "published": "2026-07-23T04:00:30+00:00", "accessed": "2026-07-23", "id": "l1-9-i-built-a-prompt-injection-firewall-for-ai-agents-28-detection-rules"}