@ -17,6 +17,7 @@ def create_json_chat_agent(
prompt : ChatPromptTemplate ,
stop_sequence : Union [ bool , List [ str ] ] = True ,
tools_renderer : ToolsRenderer = render_text_description ,
template_tool_response : str = TEMPLATE_TOOL_RESPONSE ,
) - > Runnable :
""" Create an agent that uses JSON to format its logic, build for Chat Models.
@ -33,6 +34,8 @@ def create_json_chat_agent(
does not support stop sequences .
tools_renderer : This controls how the tools are converted into a string and
then passed into the LLM . Default is ` render_text_description ` .
template_tool_response : Template prompt that uses the tool response ( observation )
to make the LLM generate the next action to take .
Returns :
A Runnable sequence representing an agent . It takes as input all the same input
@ -157,6 +160,11 @@ def create_json_chat_agent(
if missing_vars :
raise ValueError ( f " Prompt missing required variables: { missing_vars } " )
if " {observation} " not in template_tool_response :
raise ValueError (
" Template tool response missing required variable ' observation ' "
)
prompt = prompt . partial (
tools = tools_renderer ( list ( tools ) ) ,
tool_names = " , " . join ( [ t . name for t in tools ] ) ,
@ -170,7 +178,7 @@ def create_json_chat_agent(
agent = (
RunnablePassthrough . assign (
agent_scratchpad = lambda x : format_log_to_messages (
x [ " intermediate_steps " ] , template_tool_response = TEMPLATE_TOOL_RESPONSE
x [ " intermediate_steps " ] , template_tool_response = template_tool_response
)
)
| prompt