Chat history is forced into the Memory Agent Prompt

[lucagobbi]

Since the agents refactor, Memory Agent is forcing chat history to be inserted in the agent prompt:

core/core/cat/agents/memory_agent.py

Line 27 in f14f2c0

*(stray.langchainfy_chat_history()),

while other variables can be overriden using the before_agent_starts hook. Chat history is not part of the agent prompt suffix anymore even if it is populated inside the default agent_input object (using stringify method instead of langchainify):

core/core/cat/agents/main_agent.py

Line 127 in f14f2c0

"chat_history": conversation_history_formatted_content, # TODOV2: take away

that value is not used and a comment says to take away in V2, why is that?

Imho chat_history should be considered at the same level as memories, tool outputs and other custom keys provided in the agent input. If a developer wants to override that using before_agent_starts hook should be able to do it for chat_history as well.