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15 changes: 9 additions & 6 deletions langchain/agents/agent.py
Original file line number Diff line number Diff line change
Expand Up @@ -629,12 +629,15 @@ def validate_tools(cls, values: Dict) -> Dict:
agent = values["agent"]
tools = values["tools"]
allowed_tools = agent.get_allowed_tools()
if allowed_tools is not None:
if set(allowed_tools) != set([tool.name for tool in tools]):
raise ValueError(
f"Allowed tools ({allowed_tools}) different than "
f"provided tools ({[tool.name for tool in tools]})"
)
if allowed_tools is None and len(tools) == 0:
return values
if allowed_tools is None and len(tools) != 0:
raise ValueError("Tools provided but no tool defined in Agent.")
if set(allowed_tools) != set([tool.name for tool in tools]):
raise ValueError(
f"Allowed tools ({allowed_tools}) different than "
f"provided tools ({[tool.name for tool in tools]})"
)
return values

@root_validator()
Expand Down