Security audit

Xueersi Reading Reflection Guide

Security checks for vulnerabilities and agentic risk

Overview

This is a simple Chinese-language educational writing guide with no code execution, persistence, credential access, or hidden behavior.

Installers should understand this skill is aimed at Chinese-language student reflections and is designed to guide students rather than write essays for them. No sensitive permissions or executable behavior were found in the artifact reviewed.

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

Category: Not specified by scanner
Confidence: 96% confidence
Finding: The description states the skill helps students write reflections 'in Chinese,' which is a language constraint expressed in natural language. There is no accompanying opt-in, alternative language option, or justification that the skill is only for a Chinese-language context, so this creates a locale/language policy concern.
Content: No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.