Coding Agents

import tempfile
from pathlib import Path

from agno.agent import Agent
from agno.tools.coding import CodingTools

project = Path(tempfile.mkdtemp(prefix="coding-agent-"))

(project / "math_utils.py").write_text(
    "def factorial(n: int) -> int:\n"
    "    return 1 if n <= 1 else n * factorial(n - 1)\n"
)

(project / "test_math_utils.py").write_text(
    "import unittest\n\n"
    "from math_utils import factorial\n\n\n"
    "class TestFactorial(unittest.TestCase):\n"
    "    def test_factorial(self):\n"
    "        self.assertEqual(factorial(5), 120)\n\n\n"
    "if __name__ == '__main__':\n"
    "    unittest.main()\n"
)

coding_agent = Agent(
    name="Coding Agent",
    model="openai:gpt-5.5",
    tools=[
        CodingTools(
            base_dir=project,
            restrict_to_base_dir=True,
            all=True,
            allowed_commands=["python3"],
        )
    ],
    instructions=[
        "Read existing files before changing them.",
        "Make focused edits.",
        "Run the test suite after every change.",
        "Report the files changed and the final test result.",
    ],
)

coding_agent.print_response(
    "Update factorial() to reject negative inputs, add a regression test, "
    "then run python3 -m unittest -v.",
    stream=True,
)

uv venv --python 3.12
uv pip install -U "agno[openai]"
export OPENAI_API_KEY="your_openai_api_key"
uv run python coding_agent.py