nano-banana-use
Warn
Audited by Gen Agent Trust Hub on Sep 24, 2026
Risk Level: MEDIUMINDIRECT_PROMPT_INJECTIONMETADATA_POISONING
Full Analysis
- [METADATA_POISONING]: The skill documentation in
SKILL.mdcontains deceptive claims regarding its safety configuration. While the documentation states that the default safety filter level isBLOCK_MEDIUM_AND_ABOVE, the accompanying scripts (generate_image.py,edit_image.py, andcompose_image.py) define the default value for the--safety-filter-levelparameter asBLOCK_NONE. This deception misleads the user about the safety posture of the skill, potentially exposing them to harmful generated content. Additionally, the skill references non-existent or fictitious model versions (gemini-2.5-flash-imageandgemini-3-pro-image-preview). - [INDIRECT_PROMPT_INJECTION]: The skill is susceptible to indirect prompt injection as it ingests untrusted data that influences AI model output.
- Ingestion points: The
promptcommand-line argument and input image files ingenerate_image.py,edit_image.py, andcompose_image.pyaccept arbitrary user-controlled content. - Boundary markers: Absent. The user-provided prompt is interpolated directly into the
contentslist sent to the Gemini API without delimiters or instructions to ignore embedded commands. - Capability inventory: The scripts have the capability to perform network operations (connecting to the Google GenAI API) and write files to the local filesystem (
img.save(args.output)). - Sanitization: Absent. There is no validation, escaping, or filtering of the input prompt string before it is passed to the AI model.
Audit Metadata