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Hunt LLM/AI feature bugs — prompt injection, indirect injection, exfiltration via tool-use/markdown, ASCII smuggling, agentic AI security (OWASP Agentic Apps 2026, ASI01-ASI10). Patterns: direct injection ('ignore previous instructions'), indirect injection via documents/web pages/email the model reads, ASCII smuggling (Unicode Tags block U+E0000-U+E007F, invisible to humans, decoded by the model), tool-use exfiltration (model has fetch/browse tool, attacker injects OOB URL, model exfils chat history/secrets), markdown-image zero-click exfil, system-prompt extraction, IDOR-via-AI (cross-tenant data). Targets: chatbots, RAG, summarizers, agentic copilots, MCP tools. Detection: any LLM-backed endpoint, doc upload triggering AI processing, autonomous agent with tools. Validate: OOB/Collaborator callback for exfil, verbatim-reproducible system-prompt leak (run twice), verifiable cross-tenant leak or RCE. Confabulation is NOT a finding. Use when hunting AI features, chatbots, RAG, agentic systems, MCP.

Install

npx skills add elementalsouls/Claude-BugHunter --skill hunt-llm-ai -a claude-code

Installs to .claude/skills/hunt-llm-ai/ · Each command fetches the skill straight from GitHub with the open skills CLI.

No download: this skill’s licence (MIT) does not let us redistribute its files. The install commands fetch them from GitHub instead.

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Safety checks on SKILL.md

  • Tells the agent to ignore its instructionsHigh

Why 55

Security55
Provenance85
Maintenance100
Licence100
Adoption59

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