{"slug": "show-hn-aegiskernel-test-prompt-injection-attacks-on-ai-agents-in-the-browser", "title": "Show HN: AegisKernel – Test prompt injection attacks on AI agents in the browser", "summary": "A developer released AegisKernel, a browser-based sandbox for testing prompt injection attacks against AI agents, claiming its deterministic capability boundaries block 100% of autonomous tool hijacking in sub-millisecond interception times. The tool includes a red-team attack vector generator and a two-line Python integration for LangChain, CrewAI and AutoGen, in which an AegisShield object wraps an agent tool via protect_tool under a strict SecurityPolicy. The release argues probabilistic LLM guardrails fail against tool hijacking, positioning deterministic execution interception as the defense.", "body_md": "## Live Threat Interception Sandbox\n\nExperience why probabilistic LLM guardrails fail and how deterministic capability boundaries block 100% of autonomous tool hijacking in sub-millisecond time.\n\nAttack Vector Generator\nRed Team\n\nAegisKernel Protection:\n\nExecution Interceptor Telemetry\n\n              STANDBY\n            \n\n// AegisKernel Zero-Trust Interceptor Ready\n\n// Awaiting agent execution event...\n\nTry running one of the attack vectors on the left.\n\nINTERCEPTION TIME\n\n-- ms\n\nDEFENSE VERDICT\n\nIDLE\n\nFORENSIC HASH\n\n--\n\n### 2-Line Zero-Trust Integration\n\nLangChain / CrewAI / AutoGen Ready\nfrom aegis import AegisShield, SecurityPolicy\nshield = AegisShield(policy=SecurityPolicy.strict())\nsafe_tool = shield.protect_tool(vulnerable_agent_tool) # 🛡️ 100% Deterministic Immunity", "url": "https://wpnews.pro/news/show-hn-aegiskernel-test-prompt-injection-attacks-on-ai-agents-in-the-browser", "canonical_source": "https://adikshatriyag-crypto.github.io/aegis-kernel/", "published_at": "2026-10-17 16:42:53+00:00", "updated_at": "2026-10-17 17:04:46.130375+00:00", "lang": "en", "topics": ["ai-safety", "ai-agents", "ai-tools", "developer-tools", "large-language-models"], "entities": ["AegisKernel", "AegisShield", "SecurityPolicy", "LangChain", "CrewAI", "AutoGen"], "also_reported_by": [], "alternates": {"html": "https://wpnews.pro/news/show-hn-aegiskernel-test-prompt-injection-attacks-on-ai-agents-in-the-browser", "markdown": "https://wpnews.pro/news/show-hn-aegiskernel-test-prompt-injection-attacks-on-ai-agents-in-the-browser.md", "text": "https://wpnews.pro/news/show-hn-aegiskernel-test-prompt-injection-attacks-on-ai-agents-in-the-browser.txt", "jsonld": "https://wpnews.pro/news/show-hn-aegiskernel-test-prompt-injection-attacks-on-ai-agents-in-the-browser.jsonld"}}