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Security audit

lycx-skill

Security checks for vulnerabilities and agentic risk

Overview

This is a simple Chinese text-summarization skill with broad triggers and Chinese-only output, but no evidence of hidden access, persistence, exfiltration, or destructive behavior.

Install this if you want a Chinese summarization helper for provided text. Be aware that broad trigger phrases may cause it to handle ordinary Chinese summarization requests, and the included implementation is a placeholder-style summarizer rather than a real model integration.

A.I.G

Vulnerability Patterns
  • Skill Instruction HijackingAlters the agent's session goals or safety constraints when the skill loads
  • Agent Memory PoisoningWrites attacker-controlled rules into memory that affect later sessions
  • Remote Payload Retrieval and ExecutionFetches external code whose behavior can change after review
  • Embedded Malicious CodeShips malicious scripts inside the skill and executes them locally
  • Unauthorized Access and Privilege EscalationObtains permissions beyond the task's legitimate needs

SkillSpector

Vulnerability Patterns
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (2)

Vague Triggers

Medium
Confidence
96% confidence
Finding
The trigger conditions are broad everyday phrases like '总结', '提炼', and '要点', which can match many normal user requests outside a narrowly intended workflow. This can cause the skill to activate unintentionally, leading to incorrect routing, unexpected processing of user content, or interference with other skills that should handle the request.

Natural-Language Policy Violations

Medium
Confidence
88% confidence
Finding
This code returns user-facing messages and summary content entirely in Chinese, including the error text and generated key points. If organizational policy requires respecting the user's language/locale unless they opt in, these hard-coded strings impose a specific language without offering a choice.

Static analysis

No suspicious patterns detected.