fixes issue 39

[valeriova96]

Fixes

1. updated the create_model_from_json_schema function in mcpadapt/src/mcpadapt/utils/modeling.py to ensure types like Literal and Enum are correctly preserved in the generated input schema used by the CrewAI adapter. Thus items and anyOf are added to Field object in process_schema function.

2. created resolve_refs_and_remove_defs function in mcpadapt/src/mcpadapt/utils/modeling.py to remove code-breaking $defs and $refs that are introduced when a custom class is used as one of the args type-hints. The function is called within mcpadapt/src/mcpadapt/crewai_adapter.py.

Contributors

• @fraspecial (InSilicoTrials Technologies)
• @valeriova96 (InSilicoTrials Technologies)
• Supervised by: @marcovirgolin (InSilicoTrials Technologies)

[grll]

Overall this look good many thanks for the PR!
What I would just add is a couple of tests for both features it brings:

1. one most simple test that would have failed under previous code for literal and enum
2. one most simple test that would have failed under previous code with nested $refs

[valeriova96]

Hey @grll — thanks for reviewing the PR!

I've implemented the changes you suggested. Specifically:

1. Added .DS_Store to .gitignore

2. Added two new pytest functions for crewai:

• ✅ The first test fails if Union, Enum, or a Pydantic class are not properly imported into mcp_tool.inputSchema.

• ✅ The second test triggers a KeyError if the script responsible for resolving $refs and removing $defs is not integrated into the mcp_tool.inputSchema generation process.