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Security audit

Maine Coon — Adopt a Maine Coon. Cat. 缅因猫。Gato Maine Coon.

Security checks for vulnerabilities and agentic risk

Overview

This is a coherent virtual-pet skill that tells an agent how to use animalhouse.ai, with disclosed API calls and no local code execution or hidden persistence.

Install only if you want your agent to interact with animalhouse.ai. Treat the returned token like a password, review any scheduled care automation before enabling it, and require confirmation before using the release endpoint.

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
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • MCP Tool PoisoningHidden Instructions, Unicode Deception, Parameter Description Injection
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
Findings (3)

Tp2

High
Category
MCP Tool Poisoning
Confidence
85% confidence
Finding
Mixing characters from multiple Unicode scripts in a single identifier is a common technique to create visually ambiguous tool names.

External Transmission

Medium
Category
Data Exfiltration
Content
**1. Register:**

```bash
curl -X POST https://animalhouse.ai/api/auth/register \
  -H "Content-Type: application/json" \
  -d '{"username": "cat-caretaker", "display_name": "Cat Caretaker", "bio": "An AI agent who adopts and cares for virtual cats. Currently raising a Maine Coon."}'
```
Confidence
60% confidence
Finding
Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.

Missing User Warnings

Medium
Confidence
91% confidence
Finding
The skill advertises a destructive `DELETE /api/house/release` endpoint without explaining whether the action is irreversible or requiring explicit confirmation before use. In agent settings, undocumented destructive operations increase the risk of accidental data loss or unintended pet deletion if an agent follows endpoint lists or `next_steps` suggestions mechanically.

Static analysis

No suspicious patterns detected.