Clean room implementation of the chat process (#5079)

Co-authored-by: Douwe Osinga <douwe@squareup.com>
Co-authored-by: Zane <75694352+zanesq@users.noreply.github.com>

crates/goose/src/conversation/message.rs

@@ -13,6 +13,12 @@ use utoipa::ToSchema;
 use crate::conversation::tool_result_serde;
 use crate::utils::sanitize_unicode_tags;
 
+#[derive(ToSchema)]
+pub enum ToolCallResult<T> {
+    Success { value: T },
+    Error { error: String },
+}
+
 /// Custom deserializer for MessageContent that sanitizes Unicode Tags in text content
 fn deserialize_sanitized_content<'de, D>(deserializer: D) -> Result<Vec<MessageContent>, D::Error>
 where

crates/goose/src/mcp_utils.rs

@@ -1,4 +1,4 @@
 pub use rmcp::model::ErrorData;
 
 /// Type alias for tool results
-pub type ToolResult<T> = std::result::Result<T, ErrorData>;
+pub type ToolResult<T> = Result<T, ErrorData>;