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47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
"""OpenAPI spec agent."""
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from typing import Any, List, Optional
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from langchain.agents.agent import AgentExecutor
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from langchain.agents.agent_toolkits.openapi.prompt import (
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OPENAPI_PREFIX,
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OPENAPI_SUFFIX,
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)
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from langchain.agents.agent_toolkits.openapi.toolkit import OpenAPIToolkit
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from langchain.agents.mrkl.base import ZeroShotAgent
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from langchain.agents.mrkl.prompt import FORMAT_INSTRUCTIONS
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from langchain.callbacks.base import BaseCallbackManager
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from langchain.chains.llm import LLMChain
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from langchain.llms.base import BaseLLM
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def create_openapi_agent(
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llm: BaseLLM,
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toolkit: OpenAPIToolkit,
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callback_manager: Optional[BaseCallbackManager] = None,
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prefix: str = OPENAPI_PREFIX,
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suffix: str = OPENAPI_SUFFIX,
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format_instructions: str = FORMAT_INSTRUCTIONS,
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input_variables: Optional[List[str]] = None,
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verbose: bool = False,
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**kwargs: Any,
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) -> AgentExecutor:
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"""Construct a json agent from an LLM and tools."""
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tools = toolkit.get_tools()
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prompt = ZeroShotAgent.create_prompt(
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tools,
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prefix=prefix,
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suffix=suffix,
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format_instructions=format_instructions,
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input_variables=input_variables,
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)
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llm_chain = LLMChain(
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llm=llm,
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prompt=prompt,
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callback_manager=callback_manager,
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)
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tool_names = [tool.name for tool in tools]
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agent = ZeroShotAgent(llm_chain=llm_chain, allowed_tools=tool_names, **kwargs)
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return AgentExecutor.from_agent_and_tools(
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agent=agent, tools=toolkit.get_tools(), verbose=verbose
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)
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