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Security audit

课时核销核对(免费版)

Security checks for vulnerabilities and agentic risk

Overview

This skill is a local Chinese-language checker for lesson-hour reconciliation tables, and its code matches that stated purpose without network use, persistence, or hidden privileged behavior.

Install this if you are comfortable running a local Node-based checker on lesson-hour table text. Review the free-version limits carefully: it intentionally omits several checks listed in the documentation, so a clean result only means the included arithmetic and table checks passed.

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
Vulnerability Patterns
  • 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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (5)

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 41)May include surrounding context.

md
node scripts/run.mjs --sample # 先看样例

Ae1

High
Category
analysis-evasion
Confidence
100% confidence
Finding

Referenced artifact was not completely inspected

Content

Scanner excerpt · SKILL.md (reported line 42)May include surrounding context.

md
node scripts/run.mjs --sample # 先看样例

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
86% confidence
Finding

The user-facing description, usage, errors, and output strings are entirely in Chinese, indicating the skill is designed to operate only in that language. The file does not offer any language or locale opt-in/selection, nor does it document a compliance or region-specific reason for enforcing Chinese-only interaction.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The only natural-language content in this file is entirely in Chinese, which indicates the skill template is fixed to a specific language/locale. There is no accompanying opt-in, language selection, or justification that this template is intended only for a Chinese-language context.

Content

No source excerpt is available for this finding.

Intent-Code Divergence

Low
Category
Not specified by scanner
Confidence
90% confidence
Finding

L075 的注释写明“不是 JSON 就当作纯文本材料(例如直接粘贴的合同全文)”,这与文件其余位置反复声明的输入应为“课时核销表(含表头)”相矛盾。代码本身确实会接受任意纯文本,但该注释把技能适用对象表述成了无关的“合同全文”,属于文档层面的意图漂移。

Content

No source excerpt is available for this finding.