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Security audit

gstack Prototype

Security checks for vulnerabilities and agentic risk

Overview

This skill is a straightforward prototyping workflow with disclosed throwaway-code behavior and no hidden execution or persistence mechanisms.

Install this if you want agents to build quick disposable prototypes. Be aware that broad phrases like "prototype this" or "mock up a UI" may invoke it, so confirm whether you want throwaway prototype code or production-quality implementation when making requests.

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
  • Trigger AbuseOverly Broad Trigger, Shadow Command Trigger, Keyword Baiting Trigger
  • 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 (1)

Vague Triggers

Medium
Category
Not specified by scanner
Confidence
93% confidence
Finding

The skill description contains broad activation phrases such as 'prototype this', 'let me play with it', and 'mock up a UI', which can overlap with many ordinary development requests. This can cause the agent to invoke the skill in situations where a throwaway prototyping workflow is not intended, increasing the chance of inappropriate code generation, bypass of normal engineering safeguards, or unintended modifications near existing code.

Content

No source excerpt is available for this finding.

Static analysis

No suspicious patterns detected.