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Security audit

English Native Reviewer

Security checks for vulnerabilities and agentic risk

Overview

This is a manual English-writing review skill with disclosed style guidance and no code execution, persistence, credential access, or external data flow.

Installers should expect this skill to rewrite and critique English text, usually with Chinese explanations and an en-US default unless the user asks otherwise. For sensitive documents, review the rewritten text for meaning, tone, and required locale before sending it.

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 (7)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

Automatically enabling Chinese explanations based on inferred user profile uses sensitive trait inference to alter behavior without explicit consent. This can lead to privacy issues, mistaken profiling, and unexpected disclosure of assumptions about the user's background or language identity.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
94% confidence
Finding

The skill silently defaults to en-US when the user does not specify a language variant, which can override user preference without consent. This is a scope/quality issue rather than a direct security exploit, but it can cause incorrect output, locale mismatch, or user confusion in contexts where en-GB or another variant is expected.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
97% confidence
Finding

The skill explicitly states it will switch explanation language when Chinese-user traits are detected, confirming behavior based on inferred identity rather than user choice. This increases privacy and profiling risk and may produce inappropriate or exclusionary behavior if the inference is wrong.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

The file states that the principle of business email is to make the reader understand within 5 seconds and prescribes a direct style as the expected norm. This imposes a specific communication style and language expectation without offering user choice or noting that tone preferences may vary by audience or locale.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
96% confidence
Finding

The description states that the skill covers English writing standards for academic papers and reports, which imposes a specific language constraint. Under the policy, forcing a language or locale without user opt-in or clear justification is a natural-language policy violation.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
90% confidence
Finding

Line L03 states that the document defines English writing style rules for business scenarios. This imposes a specific language preference in natural language without offering users a language or locale choice, which matches the language-policy violation criteria.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Low
Category
Not specified by scanner
Confidence
89% confidence
Finding

This markdown file presents the skill entirely in Chinese, including headings, review criteria, and rewrite guidance, with no indication that users may choose another language. The policy category applies to natural-language locale constraints, and this file does not document a justified region-specific limitation or opt-in.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.