Make async (#5126)

Co-authored-by: Douwe Osinga <douwe@squareup.com>

crates/goose-cli/src/session/builder.rs

@@ -242,7 +242,7 @@ pub async fn build_session(session_config: SessionBuilderConfig) -> CliSession {
         agent.add_final_output_tool(final_output_response).await;
     }
 
-    let new_provider = match create(&provider_name, model_config) {
+    let new_provider = match create(&provider_name, model_config).await {
         Ok(provider) => provider,
         Err(e) => {
             output::render_error(&format!(

crates/goose-cli/src/session/mod.rs

@@ -474,7 +474,7 @@ impl CliSession {
                         RunMode::Plan => {
                             let mut plan_messages = self.messages.clone();
                             plan_messages.push(Message::user().with_text(&content));
-                            let reasoner = get_reasoner()?;
+                            let reasoner = get_reasoner().await?;
                             self.plan_with_reasoner_model(plan_messages, reasoner)
                                 .await?;
                         }
@@ -581,7 +581,7 @@ impl CliSession {
                     let mut plan_messages = self.messages.clone();
                     plan_messages.push(Message::user().with_text(&message_text));
 
-                    let reasoner = get_reasoner()?;
+                    let reasoner = get_reasoner().await?;
                     self.plan_with_reasoner_model(plan_messages, reasoner)
                         .await?;
                 }
@@ -1632,7 +1632,7 @@ impl CliSession {
     }
 }
 
-fn get_reasoner() -> Result<Arc<dyn Provider>, anyhow::Error> {
+async fn get_reasoner() -> Result<Arc<dyn Provider>, anyhow::Error> {
     use goose::model::ModelConfig;
     use goose::providers::create;
 
@@ -1660,7 +1660,7 @@ fn get_reasoner() -> Result<Arc<dyn Provider>, anyhow::Error> {
 
     let model_config =
         ModelConfig::new_with_context_env(model, Some("GOOSE_PLANNER_CONTEXT_LIMIT"))?;
-    let reasoner = create(&provider, model_config)?;
+    let reasoner = create(&provider, model_config).await?;
 
     Ok(reasoner)
 }