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Fix: Correctly remove 'additionalProperties' from function schemas for Gemini API #59

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Fix: Correctly remove 'additionalProperties' from function schemas for Gemini API #59

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e8b5617
AdditionalProperties wasn't removed correctly. Remove the additionalP…
patchen0518 Jun 24, 2025
c2ca3d0
Merge branch 'HKUDS:main' into main
patchen0518 Oct 23, 2025
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23 changes: 20 additions & 3 deletions autoagent/util.py
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Original file line number Diff line number Diff line change
Expand Up @@ -278,6 +278,23 @@ def get_type_info(annotation, base_type_map):
return {"type": "string"}


def remove_additional_properties(schema):
"""Recursively remove additionalProperties from schema for Gemini compatibility"""
if isinstance(schema, dict):
# Remove additionalProperties from current level
if "additionalProperties" in schema:
del schema["additionalProperties"]

# Recursively process nested objects
for key, value in schema.items():
if isinstance(value, dict):
remove_additional_properties(value)
elif isinstance(value, list):
for item in value:
if isinstance(item, dict):
remove_additional_properties(item)
return schema

def function_to_json(func) -> dict:
"""
Converts a Python function into a JSON-serializable dictionary
Expand Down Expand Up @@ -335,9 +352,9 @@ def function_to_json(func) -> dict:
continue
try:
param_info = get_type_info(param.annotation, type_map)
if isinstance(param_info, dict) and "additionalProperties" in param_info:
del param_info["additionalProperties"]
parameters[param.name] = get_type_info(param.annotation, type_map)
# Recursively remove all additionalProperties for Gemini compatibility
param_info = remove_additional_properties(param_info)
parameters[param.name] = param_info
except KeyError as e:
raise KeyError(f"Unknown type annotation {param.annotation} for parameter {param.name}: {str(e)}")

Expand Down