Nano Banana Prompting Skill

• Outcome: Pass
• Latest audit: May 28, 2026, 2:01 AM
• Version:
  1.0.1

Overview

This is a coherent image-prompting skill that discloses its Gemini key use, helper-script workflow, and image file output behavior.

Install this if you want Gemini image prompting, but use a trusted Gemini generator helper, protect your GEMINI_API_KEY, and be deliberate about output paths and sensitive reference images.

SkillSpector

By NVIDIA

Vulnerability Patterns

• Prompt Injection: Instruction Override, Hidden Instructions, Exfiltration Commands
• Data Exfiltration: External Transmission, Env Variable Harvesting, File System Enumeration
• Privilege Escalation: Excessive Permissions, Sudo/Root Execution, Credential Access
• Supply Chain: Unpinned Dependencies, External Script Fetching, Obfuscated Code
• Excessive Agency: Unrestricted Tool Access, Autonomous Decision Making, Scope Creep

Findings (1)

Missing User Warnings

Medium

• Confidence: 93% confidence
• Finding: This markdown file describes file-writing behavior by directing the agent to save output images to `~/Desktop` or another user-specified path. While it includes filename-sanitization guidance, it does not explicitly warn the user that running the skill will create or overwrite image files on disk, which is a user-data-affecting operation.

VirusTotal

64/64 vendors flagged this skill as clean.