Does not work, adb always has

[Manamama]

Advanced adb and Droid user here.

@above-hp2-silver:~/Downloads/GitHub/android-mcp-server$ cat test1.py 

import subprocess
import json
import threading
import time

cmd = [
    "python3",
    "/home/user/.local/lib/python3.10/site-packages/android-mcp-server/server.py"
]

p = subprocess.Popen(
    cmd,
    stdin=subprocess.PIPE,
    stdout=subprocess.PIPE,
    stderr=subprocess.PIPE,
    text=True
)

request = {
    "jsonrpc": "2.0",
    "id": 1,
    "method": "get_packages",
    "params": []  # empty list as you found required
}

print(">>> Sending request:", request)
p.stdin.write(json.dumps(request) + "\n")
p.stdin.flush()

def read_output(stream, label):
    for line in iter(stream.readline, ''):
        print(f"{label}: {line.strip()}")

stdout_thread = threading.Thread(target=read_output, args=(p.stdout, "STDOUT"))
stderr_thread = threading.Thread(target=read_output, args=(p.stderr, "STDERR"))
stdout_thread.start()
stderr_thread.start()

# Wait max 10 seconds for response
time.sleep(10)

if p.poll() is None:
    print("Process still running after 10s, terminating")
    p.terminate()
else:
    print("Process exited")

stdout_thread.join(timeout=1)
stderr_thread.join(timeout=1)


user@above-hp2-silver:~/Downloads/GitHub/android-mcp-server$ 

test shows nothing:

user@above-hp2-silver:~/Downloads/GitHub/android-mcp-server$ python test1.py 
>>> Sending request: {'jsonrpc': '2.0', 'id': 1, 'method': 'get_packages', 'params': []}



Process still running after 10s, terminating
user@above-hp2-silver:~/Downloads/GitHub/android-mcp-server$ 

vs:

 $ adb -s 192.168.44.1:5555 shell pm list packages | head
package:com.shix.qhipc
package:com.google.android.networkstack.tethering
package:com.ilixa.mirror
package:org.jitsi.meet
package:com.mediatek.gba
package:com.mediatek.ims
package:com.ajeic.LearnJapaneseNumbers
package:com.asana.app
package:com.android.cts.priv.ctsshim
package:com.extreamsd.usbmidimonitor

Yes, config file is fine etc. Tests mostly passed and:

python /home/user/.local/lib/python3.10/site-packages/android-mcp-server/server.py 
Loaded config from config.yaml
Configured device: 192.168.44.1:5555

The mcp client (e.g. Gemini CLI) debug logs show nothing, either.

[jtabor]

You could try adding a sleep before you send to stdin? I had an issue with claude code if I tried to tell it to use the mcp server too quickly after startup. Now I've been using it through the claude code desktop app (with some modifications for it to work on ubuntu) and with claude code on ubuntu without issues.