Function buildImageToolResult

src/tools/BashTool/utils.ts:71–91

(
  stdout: string,
  toolUseID: string,
)

 * Returns null if parse fails so callers can fall through to text handling.
 */
export function buildImageToolResult(
  stdout: string,
  toolUseID: string,
): ToolResultBlockParam | null {
  const parsed = parseDataUri(stdout)
  if (!parsed) return null
  return {
    tool_use_id: toolUseID,
    type: 'tool_result',
    content: [
      {
        type: 'image',
        source: {
          type: 'base64',
          media_type: parsed.mediaType as Base64ImageSource['media_type'],
          data: parsed.data,
        },
      },
    ],
  }
}

// Cap file reads to 20 MB — any image data URI larger than this is
// well beyond what the API accepts (5 MB base64) and would OOM if read