Upgrade from old crewai version 0.55.2 to latest 0.108.0 - custom tools don't work anymore

[skye0402]

I found that when using the latest version, the agents are not using any tools anymore. I wonder what the reason could be? I see no errors, they just process the tasks from the LLM knowledge alone. I can see in debugger that the tools get initialized and are part of each agent.

Any idea why tool calling stopped fully? I see no errors and the agents come back with a result (derived without tool usage). Any way to debug it?

[skye0402]

Ok, I found the issue.

writer = Agent(
    role='Content Writer',
    goal='Craft engaging blog posts about the AI industry',
    backstory='A skilled writer with a passion for technology.',
    tools=writer_tools, # Use the generated list
    verbose=True,
    llm=llm
)

If you pass in the llm parameter to the agent, no tools are used anymore. If it's passed to the crew only, it works. I think this is a bug. I was able to reproduce it with the example in https://docs.crewai.com/concepts/tools