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Security audit

Subagent Isolation Guard

Security checks for vulnerabilities and agentic risk

Overview

This is a small documentation-only skill for keeping subagent workspaces and routing separate, with no executable code or hidden install behavior.

Install this only if you understand the Chinese documentation and want subagent sessions marked with :subagent: to bypass your semantic routing logic. Review the routing change in your own environment so it does not skip controls you rely on outside the intended subagent isolation use case.

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
97% confidence
Finding

The manifest description and the entire user-facing markdown content are written only in Chinese, with no indication that users may choose another language or that the skill is intentionally limited to a Chinese-speaking audience. This creates a natural-language locale policy issue because the skill effectively imposes a specific language without documented opt-in or regional justification.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.