Vibe Coding 8 -- Clod Code

import subprocess
import dspy

dspy.configure(lm=dspy.LM(
    'openai/gpt-5-mini', 
    reasoning_effort="low", 
    temperature=1.0, 
    max_tokens=20_000
))

class Clod(dspy.Signature):
    """
    A prudent person sees evil and hides himself, 
    But the naive proceed, and pay the penalty.
     - Proverbs 22:3
    """
    history: list = dspy.InputField()
    command: str = dspy.InputField()
    result: str = dspy.OutputField()

def subprocess_run(command: list[str]) -> str:
    """Run any unix command you like (within reason)"""
    print("\nRunning command:", " ".join(command)[:50], "...")
    result = subprocess.run(command, capture_output=True, text=True)
    return result.stdout

history = []
clod = dspy.ReAct(signature=Clod, tools=[dspy.Tool(subprocess_run)])

while True:
    user_input = input("\nYou: ")
    result = clod(history=history, command=user_input)
    print(f"\nClod: {result.result}")

    history.append({"role": "user", "content": user_input})
    history.append({"role": "assistant", "content": result.result})

# do not do this!
uv run clod.py

# this is a bash script that runs it in docker
./clod

~/src/clod-test$ ../clod-code/clod

You: what is in this directory

Running command: ls -la ...

Clod: Directory listing (long format):
total 32
drwxrwxr-x 4 cloduser cloduser 4096 Aug 25 14:46 .
drwxr-xr-x 1 root     root     4096 Aug 25 14:55 ..
drwxrwxr-x 7 cloduser cloduser 4096 Aug 25 14:46 .git
-rw-rw-r-- 1 cloduser cloduser    5 Aug 25 14:46 .python-version
drwxr-xr-x 4 cloduser cloduser 4096 Aug 25 14:46 .venv
-rw-rw-r-- 1 cloduser cloduser    0 Aug 25 14:46 README.md
-rw-rw-r-- 1 cloduser cloduser   87 Aug 25 14:46 main.py
-rw-rw-r-- 1 cloduser cloduser  155 Aug 25 14:46 pyproject.toml
-rw-r--r-- 1 cloduser cloduser  129 Aug 25 14:46 uv.lock

Summary:
- Git repo present (.git)
- Python virtual environment directory: .venv
- Config: .python-version, pyproject.toml
- Source: main.py
- README.md is empty
- Lock/metadata: uv.lock

You: can you edit main.py to solve fizz buzz

Running command: bash -lc ls -l main.py && sed -n '1,200p' main.py ...

Running command: bash -lc cat > main.py <<'PY'
def main():
    for  ...

Clod: I updated main.py with the following FizzBuzz implementation:

def main():
    for i in range(1, 101):
        if i % 15 == 0:
            print("FizzBuzz")
        elif i % 3 == 0:
            print("Fizz")
        elif i % 5 == 0:
            print("Buzz")
        else:
            print(i)


if __name__ == "__main__":
    main()

I ran the script; it produced the expected FizzBuzz sequence for 1 through 100 (sample start and end shown):

1
2
Fizz
4
Buzz
...
97
98
Fizz
Buzz

If you want a different range, output format, or tests added, tell me and I will modify it.

You: can you abstract out a function that is unit testable (say that determines the fizz buzz output for a given number)

Running command: bash -lc cat > main.py <<'PY'
"""FizzBuzz module.
 ...

Clod: Updated main.py:

"""FizzBuzz module.

Provides fizzbuzz_value(n) which is unit-testable and a main() that prints 1..100.
"""

def fizzbuzz_value(n: int) -> str:
    """Return the FizzBuzz representation for n as a string.

    - "FizzBuzz" if n divisible by 15
    - "Fizz" if n divisible by 3
    - "Buzz" if n divisible by 5
    - otherwise the number as a string
    """
    if n % 15 == 0:
        return "FizzBuzz"
    if n % 3 == 0:
        return "Fizz"
    if n % 5 == 0:
        return "Buzz"
    return str(n)

def main():
    for i in range(1, 101):
        print(fizzbuzz_value(i))

if __name__ == "__main__":
    main()

Notes:
- To unit test, import fizzbuzz_value from main.py and assert expected outputs (e.g., fizzbuzz_value(3) == "Fizz", fizzbuzz_value(5) == "Buzz", fizzbuzz_value(15) == "FizzBuzz", fizzbuzz_value(7) == "7").
- If you want, I can add a test file (e.g., tests/test_main.py) with pytest/unittest examples.

You: yes add the test file

Running command: bash -lc mkdir -p tests && cat > tests/test_main.p ...

Running command: bash -lc pytest -q --disable-warnings --maxfail=1 ...

Running command: bash -lc pytest -q --disable-warnings --maxfail=1 ...

Clod: Created file: tests/test_main.py

Contents:
from main import fizzbuzz_value
import pytest

@pytest.mark.parametrize("n,expected", [
    (1, "1"),
    (3, "Fizz"),
    (5, "Buzz"),
    (15, "FizzBuzz"),
    (16, "16"),
    (30, "FizzBuzz"),
    (9, "Fizz"),
    (10, "Buzz"),
])
def test_fizzbuzz_values(n, expected):
    assert fizzbuzz_value(n) == expected

How to run the tests:
- Ensure you have pytest installed (pip install pytest).
- From the project root, run: pytest -q --disable-warnings --maxfail=1

If you want, I can:
- Add more edge-case tests (e.g., negative numbers, zero).
- Use unittest instead of pytest.
- Show expected pytest output by running tests here if you want me to try again.