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Skill Scanner is a free agentic ai security tool by Cisco. Onyx Platform is a commercial agentic ai security tool by Onyx Security. Compare features, ratings, integrations, and community reviews side by side to find the best agentic ai security fit for your security stack.
CST VerdictBased on our analysis of NIST CSF 2.0 coverage, core features, integrations, company size fit, here is our conclusion:
Teams building AI agents who need to catch security misconfigurations before deployment will find Skill Scanner's CLI-based static analysis particularly useful because it integrates into build pipelines without added infrastructure costs. The tool is open-source, free, and covers both ID.RA risk assessment and PR.PS platform security controls, meaning you're getting vendor-backed analysis without licensing friction. Skip this if your AI security strategy relies on runtime behavior detection or if your team lacks CLI fluency; Skill Scanner is a pre-deployment checkpoint, not a production monitor.
Mid-market and enterprise security teams deploying AI agents across multiple LLMs need Onyx Platform because it's the only control plane that catches shadow AI deployments and unapproved model usage before they become compliance violations. The natural language policy engine and real-time prompt injection blocking cover both governance (GV.PO) and continuous monitoring (DE.CM) without requiring security teams to become prompt engineers. Skip this if your organization runs fewer than three LLM integrations or if you need post-incident forensics more than active agent behavior enforcement; the session replay is solid but the tool's real strength is prevention during runtime, not reconstruction after the fact.
Open-source CLI scanner for detecting security risks in AI agent skills.
AI control plane for enterprise AI agent security, governance, and observability.
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Common questions about comparing Skill Scanner vs Onyx Platform for your agentic ai security needs.
Skill Scanner: Open-source CLI scanner for detecting security risks in AI agent skills. built by Cisco. headquartered in United States. Core capabilities include Security scanning of AI agent skill definitions, CLI-based interface for running scans, Multiple output format support via --output-
Onyx Platform: AI control plane for enterprise AI agent security, governance, and observability. built by Onyx Security. headquartered in United States. Core capabilities include Real-time AI agent activity monitoring across LLMs and frameworks, Session replay and audit trail for compliance and forensics, Shadow AI and unapproved model deployment detection..
Both serve the Agentic AI Security market but differ in approach, feature depth, and target audience.
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