Using plandex with litellm pointing to bedrock + claude won't work

[jaysonsantos]

Hey there, I am trying to run plandex using litellm with the following config:

model_list:
  - model_name: gpt-4o
    litellm_params:
      model: bedrock/anthropic.claude-3-5-sonnet-20240620-v1:0
  - model_name: gpt-3.5-turbo 
    litellm_params:
      model: bedrock/anthropic.claude-3-5-sonnet-20240620-v1:0
litellm_settings:
    drop_params: true

and pointing plandex with OPENAI_API_BASE
and when trying to tell, litellm returns this Error during plan name model call: error, status code: 400, message: litellm.BadRequestError: Invalid Message bedrock requires at least one non-system message and I wonder, shouldn't the initial prompt always be user instead of system?

this is the return on plandex's cli side

🚨 Server error
  → Error loading plan
    → Error generating plan name
      → Error, status code
        → 400, message
          → Litellm.BadRequestError
            → Invalid Message bedrock requires at least one non-system message
Received Model Group=gpt-3.5-turbo
Available Model Group Fallbacks=None