cue cmd do
cmp stdout expect-stdout

-- expect-stdout --
{"b":"cue\n"}
-- task_tool.cue --
package home

import (
    "encoding/json"
    "tool/cli"
    "tool/exec"
)

foo: {
  a :: string
  b: a
}

command: do: {
    task: name: exec.Run & {
        cmd: "echo cue"
        stdout: string
    }
    task: out: cli.Print & {
        text:  json.Marshal(foo & { a :: task.name.stdout })
    }
}

-- task.cue --
package home
-- cue.mod --