langchain

7642f215 - Add human message as input variable to chat agent prompt creation (#4542)

Add human message as input variable to chat agent prompt creation (#4542) # Add human message as input variable to chat agent prompt creation This PR adds human message and system message input to `CHAT_ZERO_SHOT_REACT_DESCRIPTION` agent, similar to [conversational chat agent](https://github.com/hwchase17/langchain/blob/7bcf238a1acf40aef21a5a198cf0e62d76f93c15/langchain/agents/conversational_chat/base.py#L64-L71). I met this issue trying to use `create_prompt` function when using the [BabyAGI agent with tools notebook](https://python.langchain.com/en/latest/use_cases/autonomous_agents/baby_agi_with_agent.html), since BabyAGI uses “task” instead of “input” input variable. For normal zero shot react agent this is fine because I can manually change the suffix to “{input}/n/n{agent_scratchpad}” just like the notebook, but I cannot do this with conversational chat agent, therefore blocking me to use BabyAGI with chat zero shot agent. I tested this in my own project [Chrome-GPT](https://github.com/richardyc/Chrome-GPT) and this fix worked. ## Request for review Agents / Tools / Toolkits - @vowelparrot