Candidates the review stage examined and rejected, kept for transparency.
Data exfiltration
highRefutedlow confidenceedit_image and generate_gemini_image read agent-supplied local file paths (only image magic-byte checked) and upload their bytes to the user-configured GEN_IMAGE_BASE_URL, so an agent could send any local image file off-host; this is the tool's declared core function and the destination is user-configured.
const bytes = await fs.readFile(absPath);
Why it was refuted
Reading a local image to send to the image API is the declared core function of edit_image. The code rejects non-image files by magic-byte check before upload, so arbitrary local files are not exfiltrated, and the destination is user-configured.
Destructive action
highRefutedlow confidenceImage bytes returned from the upstream API are written to an agent-chosen output_path (any location, overwriting existing files when an explicit image-file path is given), but content is restricted to validated image formats.
await fs.writeFile(preferred, images[i].bytes, {Why it was refuted
Writing generated images to a caller-specified output_path is the declared core capability of an image generation tool. Directory outputs use the exclusive-create flag so they never overwrite, and content is limited to decoded image bytes from the upstream API.