droid-mcp-core/io.droidmcp.core/ToolImage

ToolImage

data class ToolImage(val base64: String, val mimeType: String, val dataKey: String? = null)

An image produced by a tool, sent over MCP as an image content block ({"type": "image", "data": <base64>, "mimeType": ...}). Created by ToolResult.withImage.

Constructors

ToolImage

constructor(base64: String, mimeType: String, dataKey: String? = null)

Properties

base64

val base64: String

The image bytes, base64-encoded without line wrapping.

dataKey

val dataKey: String?

The ToolResult.data key holding the same base64, which the MCP transport omits from the JSON so the image isn't sent twice. Null when the image isn't in ToolResult.data.

mimeType

val mimeType: String

e.g. image/png or image/jpeg.