verbose=True crashes on any tool-calling response (AttributeError on ChatCompletionMessageToolCall) #54

SDK version

0.3.0

Python version

Python 3.9.18, Python 3.12.12

Platform

Darwin 24.6.0 arm64 arm

Error type

AttributeError

What issue are you seeing?

Running
DedalusRunner(client, verbose=True).run(..., tools=[...])
crashes on the first response that contains tool calls. verbose=False works fine. The bug is entirely in the verbose-only logging branches, not in the agent execution path.

Steps to reproduce

import os
from dedalus_labs import Dedalus
from dedalus_labs.lib.runner import DedalusRunner


def add(a: int, b: int) -> int:
    """Add two numbers."""
    return a + b


client = Dedalus(api_key=os.environ["DEDALUS_API_KEY"])
runner = DedalusRunner(client, verbose=True)  # <-- the trigger

runner.run(
    model="openai/gpt-5-nano",
    input="What is 3 + 4? You MUST call the add tool.",
    tools=[add],
)

Setting verbose=False (the default) on the same script completes successfully (tools_called=['add'], final_output='The sum is 7...'), which isolates the bug to the verbose-print path.

Verified to crash on a clean uv venv --python 3.12 && uv pip install -e . install of dedalus-labs@v0.3.0.

Expected behavior

With verbose=True, the runner should print the names of tool calls in the response and continue executing the agent loop, same behavior as verbose=False, just with extra logs. No exception.

Additional context

Happy to open a PR with solving the issue.