Source code for langchain_core.tools.render
from __future__ import annotations
from inspect import signature
from typing import Callable, List
from langchain_core.tools.base import BaseTool
ToolsRenderer = Callable[[List[BaseTool]], str]
[docs]def render_text_description(tools: List[BaseTool]) -> str:
"""Render the tool name and description in plain text.
Args:
tools: The tools to render.
Returns:
The rendered text.
Output will be in the format of:
.. code-block:: markdown
search: This tool is used for search
calculator: This tool is used for math
"""
descriptions = []
for tool in tools:
if hasattr(tool, "func") and tool.func:
sig = signature(tool.func)
description = f"{tool.name}{sig} - {tool.description}"
else:
description = f"{tool.name} - {tool.description}"
descriptions.append(description)
return "\n".join(descriptions)
[docs]def render_text_description_and_args(tools: List[BaseTool]) -> str:
"""Render the tool name, description, and args in plain text.
Args:
tools: The tools to render.
Returns:
The rendered text.
Output will be in the format of:
.. code-block:: markdown
search: This tool is used for search, args: {"query": {"type": "string"}}
calculator: This tool is used for math, \
args: {"expression": {"type": "string"}}
"""
tool_strings = []
for tool in tools:
args_schema = str(tool.args)
if hasattr(tool, "func") and tool.func:
sig = signature(tool.func)
description = f"{tool.name}{sig} - {tool.description}"
else:
description = f"{tool.name} - {tool.description}"
tool_strings.append(f"{description}, args: {args_schema}")
return "\n".join(tool_strings)