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Security audit

Code Reviewer Umy997

Security checks for vulnerabilities and agentic risk

Overview

This is a simple code-review guidance skill with no executable code, persistence, credential handling, or hidden high-impact behavior.

Before installing, note that the skill's instructions are written in Chinese, so users who prefer another language may want the publisher to clarify language behavior. From a security perspective, the inspected artifact is narrow and non-executable.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (1)

Natural-Language Policy Violations

Medium
Confidence
96% confidence
Finding
The manifest description and all user-facing instructions are written only in Chinese, with no indication that the skill supports other languages or lets the user choose a preferred locale. This can violate a language/locale policy when a skill implicitly requires one language without explicit opt-in or justification.

Static analysis

No suspicious patterns detected.