chore: use a Conversation type (#3735)

crates/goose/examples/agent.rs

@@ -4,7 +4,8 @@ use dotenvy::dotenv;
 use futures::StreamExt;
 use goose::agents::{Agent, AgentEvent, ExtensionConfig};
 use goose::config::{DEFAULT_EXTENSION_DESCRIPTION, DEFAULT_EXTENSION_TIMEOUT};
-use goose::message::Message;
+use goose::conversation::message::Message;
+use goose::conversation::Conversation;
 use goose::providers::databricks::DatabricksProvider;
 
 #[tokio::main]
@@ -32,10 +33,11 @@ async fn main() {
         println!("  {}", extension);
     }
 
-    let messages = vec![Message::user()
-        .with_text("can you summarize the readme.md in this dir using just a haiku?")];
+    let conversation = Conversation::new(vec![Message::user()
+        .with_text("can you summarize the readme.md in this dir using just a haiku?")])
+    .unwrap();
 
-    let mut stream = agent.reply(&messages, None, None).await.unwrap();
+    let mut stream = agent.reply(conversation, None, None).await.unwrap();
     while let Some(Ok(AgentEvent::Message(message))) = stream.next().await {
         println!("{}", serde_json::to_string_pretty(&message).unwrap());
         println!("\n");

crates/goose/examples/databricks_oauth.rs

@@ -1,11 +1,9 @@
 use anyhow::Result;
 use dotenvy::dotenv;
-use goose::{
-    message::Message,
-    providers::{
-        base::{Provider, Usage},
-        databricks::DatabricksProvider,
-    },
+use goose::conversation::message::Message;
+use goose::providers::{
+    base::{Provider, Usage},
+    databricks::DatabricksProvider,
 };
 use tokio_stream::StreamExt;
 

crates/goose/examples/image_tool.rs

@@ -1,9 +1,9 @@
 use anyhow::Result;
 use base64::{engine::general_purpose::STANDARD as BASE64, Engine as _};
 use dotenvy::dotenv;
-use goose::{
-    message::Message,
-    providers::{bedrock::BedrockProvider, databricks::DatabricksProvider, openai::OpenAiProvider},
+use goose::conversation::message::Message;
+use goose::providers::{
+    bedrock::BedrockProvider, databricks::DatabricksProvider, openai::OpenAiProvider,
 };
 use mcp_core::tool::ToolCall;
 use rmcp::model::{Content, Tool};