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NVIDIA/SkillSpector vs Steel Browser

A side-by-side comparison of pricing, ratings, features, pros and cons.

DescriptionOpen-source security scanner for AI agent skills from NVIDIA. Scans skills (from Git repos, URLs, zip files, or directories) for risky patterns including prompt injection, data exfiltration, privilege escalation, malicious code, supply-chain issues, and MCP tool poisoning. Uses static analysis plus optional LLM-based semantic review and can be used in CI/CD or as an MCP server.Open-source browser sandbox and automation infrastructure for AI agents and apps with session-backed workflows, screenshots, PDFs, proxies, and anti-bot tooling.
Category
DeveloperNVIDIAsteel-dev
Verified StatusNoNo
Last UpdatedSep 2026Sep 2026
Pricing ModelFreeFree
Free PlanYesYes
Open SourceNoNo
Features
Scans AI agent skills for 68 vulnerability patterns across 17 categories (prompt injection, data exfiltration, supply chain, etc.)
Two-stage analysis: fast static analysis plus optional LLM semantic evaluation
Cross-references OSV.dev for real-time CVE data with offline fallback
0-100 risk score with severity labels and clear recommendations
Scans Git repos, URLs, zip files, directories, or single files
Baseline/suppression system so re-scans surface only new findings
Reports in terminal, JSON, Markdown, or SARIF format
Managed Chrome browser sandbox controlled via Chrome DevTools Protocol
Compatible with Puppeteer, Playwright, and Selenium
Persistent session state, proxy chains, and custom extension loading
Anti-detection/stealth tooling and fingerprint management
Page-to-markdown, screenshot, and PDF generation endpoints
Session inspection/debugging UI with request logging
Tags
nvidiaskillsskillspectorsecurityopen-source
sandboxautomationopen-sourcesteel-browser
Review Count00
Saves00
Views87103
Quality Score62/10062/100
Website StatusOnlineOnline
Websitegithub.comgithub.com
Social Links1 linked2 linked
ScreenshotsNoNo
Pros
Free to use
Free to use

Who Should Choose Each Tool?

Choose NVIDIA/SkillSpector if:

  • Free to use

Choose Steel Browser if:

  • Free to use

Frequently Asked Questions

Both tools are closely matched on rating — the better fit depends on your specific needs. See the full feature and pricing comparison above.

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