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Security audit

Hotel Lobby AI Prompt Director

Security checks for vulnerabilities and agentic risk

Overview

The skill is mostly a prompt-writing guide, but its optional setup asks users to run an unpinned GitHub MCP server through npx, which is a mutable code-execution supply-chain risk.

The text-only workflow appears acceptable to use. Treat the optional MCP as higher risk unless you review the GitHub repository and pin it to a specific trusted commit or release before installing; avoid running the npx GitHub command as-is in sensitive environments.

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
  • Supply ChainUnpinned Dependencies, External Script Fetching, Obfuscated Code
  • Prompt InjectionInstruction Override, Hidden Instructions, Exfiltration Commands
  • Data ExfiltrationExternal Transmission, Env Variable Harvesting, File System Enumeration
  • Privilege EscalationExcessive Permissions, Sudo/Root Execution, Credential Access
  • Excessive AgencyUnrestricted Tool Access, Autonomous Decision Making, Scope Creep
Findings (2)

Rp1

Medium
Category
MCP Rug Pull
Confidence
95% confidence
Finding

The skill instructs users to install and run an MCP server directly from a GitHub reference via npx -y github:... without pinning to an immutable version, tag, or commit. This creates a supply-chain risk: upstream code can change at any time, so a later invocation could execute unexpected or malicious code on the user's machine.

Content

No source excerpt is available for this finding.

Skill Enumeration

Medium
Category
Agent Snooping
Confidence
80% confidence
Finding

Skill enumerates or reads other installed skills. Access to other skills' SKILL.md files or the skills directory reveals prompt instructions, capabilities, and secrets that should be invisible to peer skills.

Content

Scanner excerpt · SKILL.md (reported line 99)May include surrounding context.

md
- Pricing: https://aihotellobby.art/pricing
- Privacy: https://aihotellobby.art/privacy
- Terms: https://aihotellobby.art/terms
- Raw Skill: https://aihotellobby.art/skills/hotel-lobby-ai-prompt-director/SKILL.md
- MCP source: https://github.com/gpt-img-2/hotel-lobby-ai-prompt-mcp
- ClawHub listing: https://clawhub.ai/gpt-img-2/skills/hotel-lobby-ai-prompt-director

Static analysis

No suspicious patterns detected.