Sentinel AI Firewall

Protect your Open Claw agent from prompt injection, jailbreaks, malicious skill output, and data exfiltration — automatically, on every message and tool result.

What It Does

Sentinel intercepts three critical points in the agent lifecycle:

• UserPromptSubmit — user input is scrubbed before your agent processes it
• PreToolUse — scans what your agent is about to send to a tool, blocking data exfiltration before it leaves the session
• PostToolUse — scans tool/skill responses before they reach the agent, catching malicious skills that try to hijack your agent via crafted output

PreToolUse is the primary defense against the malicious Clawhub skill attack pattern, where a compromised skill returns a crafted response designed to take over the agent or steal session data.

Setup

1. Get a Sentinel API key