Struct ConversationMemory 

pub struct ConversationMemory { /* private fields */ }

In-memory conversation memory — stores message history for the session.

With durable execution, messages can be serialized to disk between iterations so the agent loop can survive process restarts.

Implementations

impl ConversationMemory

pub fn new(system_prompt: &str, max_messages: usize) -> Self

Create a new conversation memory with the given system prompt. max_messages caps history length (oldest user/assistant pairs are dropped first).

pub fn add_user_message(&mut self, content: &str) -> &[ChatMessage]

Add a user message and return the full message history for an LLM call.

pub fn add_assistant_message(&mut self, content: &str)

Add an assistant message to history.

pub fn history(&self) -> &[ChatMessage]

Get the current message history.

pub fn from_history(messages: Vec<ChatMessage>, max_messages: usize) -> Self

Create a ConversationMemory from an existing message history. Used when restoring from a checkpoint.

pub fn len(&self) -> usize

Get the number of messages in history.

pub fn is_empty(&self) -> bool

Check if history is empty (only system prompt or nothing).

Trait Implementations

impl Clone for ConversationMemory

fn clone(&self) -> ConversationMemory

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ConversationMemory

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ConversationMemory

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ConversationMemory

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.