Security scanner for AI agent skills. Detect vulnerabilities, malicious patterns, and security risks before installing agent skills.

Overview

AI agent skills (used by Claude Code, Codex CLI, Gemini CLI, etc.) execute with implicit trust and minimal vetting. Research shows that 26.1% of skills contain vulnerabilities and 5.2% show likely malicious intent .

SkillSpector helps you answer: "Is this skill safe to install?"

Documentation

Development guide — Architecture, package layout, and how to extend the analyzer pipeline.

Features

Multi-format input : Scan Git repos, URLs, zip files, directories, or single files

64 vulnerability patterns across 16 categories: prompt injection, data exfiltration, privilege escalation, supply chain, excessive agency, output handling, system prompt leakage, memory poisoning, tool misuse, rogue agent, trigger abuse, dangerous code (AST), taint tracking, YARA signatures, MCP least privilege, and MCP tool poisoning

Two-stage analysis : Fast static analysis + optional LLM…