Tool
GitHub - BenniAlencar/agent-cyber-sentinel: Tier-0 Zero-Trust Runtime Security Shield, Prompt Injection Firewall, Secret Leak Interceptor and Tool Call Sanitizer for AI Agents and MCP Servers. Governed by Benni Master OS v9.4 (Skill 63 Cyber Sentinel OS).
Publication date unknown · Discovered github.com
Page published
Publication date unknown · First observed: 17 Oct 2026
Coverage timeline
Single-source incident — one report is available.
Why it matters
Agent Cyber Sentinel offers runtime guardrails for agent inputs, secret handling and tool calls, although defenders would need to validate its coverage and bypass resistance before relying on it.
Agent Cyber Sentinel is a GitHub-hosted defensive tool described as providing prompt-injection filtering, secret-leak interception and tool-call sanitization for AI agents and MCP servers. The visible repository includes implementation, tests and examples, with a commit adding an OpenAISecurityGuard client proxy adapter; the supplied excerpt does not establish protection effectiveness.