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Security audit

Frontend Agent

Security checks for vulnerabilities and agentic risk

Overview

This is a coherent frontend-development helper skill with ordinary coding guidance and no hidden installation, exfiltration, destructive behavior, or privilege persistence found.

Install this if you want a Chinese-language frontend development assistant. Review generated code as usual, especially any commands it proposes to run or files it edits, and localize any example UI text if your application is not Chinese-language.

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
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
Findings (5)

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
87% confidence
Finding

The skill content is written to operate in Chinese without indicating that it should adapt to the user's language preference. This can create unsafe misunderstandings in technical workflows, especially when discussing code changes, tool usage, or security-sensitive implementation details, because the agent may respond in a language the user did not intend.

Content

No source excerpt is available for this finding.

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The trigger phrases are very broad (e.g., common requests like '前端开发' or '帮我写个 React 组件'), which can cause the skill to activate during ordinary conversation even when the user did not explicitly request this specific skill. In an agent framework, overly broad activation increases the chance of unintended tool use, prompt-context switching, or the skill overriding a more appropriate specialization.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The component’s natural-language content is written in Chinese, including the descriptive comment block and user-facing button label later in the file, with no indication that this is optional or intended only for a Chinese-language context. Under the policy, forcing a specific language without user opt-in is a natural-language locale violation.

Content

No source excerpt is available for this finding.

Natural-Language Policy Violations

Medium
Category
Not specified by scanner
Confidence
95% confidence
Finding

The reset button presents Chinese text directly in the UI, which fixes the component to a specific language for end users. There is no opt-in, localization mechanism, or documented reason that the component must be Chinese-only.

Content

No source excerpt is available for this finding.

Description-Behavior Mismatch

Low
Category
Not specified by scanner
Confidence
83% confidence
Finding

The manifest describes a frontend development skill focused on React/Vue/Angular, UI implementation, and performance optimization. This component also reads from and writes to localStorage for persistence, which is additional stateful behavior not reflected in the high-level description, even though it remains client-side.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.