Sentinel-Gate — Enterprise AI Security Gateway

Sentinel-Gate is a real-time security gateway for enterprise AI agents built for the Agent Security & AI Governance track powered by Veea. It sits between an enterprise application and the LLM, inspecting prompts before they reach the model and checking responses before they return to the user. The system uses Veea Lobster Trap as the inspection layer, Gemini AI for policy authoring and threat intelligence, Stream-lit for the operator interface, and SQLite for audit persistence. Security teams can test prompt injection, data exfiltration, HIPAA-style sensitive-data requests and custom policy violations from a live demo UI. Every verdict card shows the decision, risk score, detected intent and measured inspection latency in milliseconds. The Live Risk Monitor shows the latest risk score plus a sparkline of recent risk values, making attacker probing visible during the demo. Blocked prompts can open a Gemini threat intelligence report with attack type, severity, technique, remediation and compliance impact. Sentinel-Gate also includes compliance policy packs and plain-English custom policy creation. Every request is logged with timestamp, agent, prompt preview, intent, risk score and decision, with CSV export for review. The gateway is fail-closed: if inspection cannot certify a request, Sentinel-Gate blocks rather than passing unsafe traffic through.