Restore recipe parameters functionality (#3530)

crates/goose/src/agents/extension.rs

@@ -163,6 +163,7 @@ pub enum ExtensionConfig {
         /// The name used to identify this extension
         name: String,
         display_name: Option<String>, // needed for the UI
+        description: Option<String>,
         timeout: Option<u64>,
         /// Whether this extension is bundled with Goose
         #[serde(default)]
@@ -208,6 +209,7 @@ impl Default for ExtensionConfig {
         Self::Builtin {
             name: config::DEFAULT_EXTENSION.to_string(),
             display_name: Some(config::DEFAULT_DISPLAY_NAME.to_string()),
+            description: None,
             timeout: Some(config::DEFAULT_EXTENSION_TIMEOUT),
             bundled: Some(true),
         }

crates/goose/src/agents/extension_manager.rs

@@ -242,6 +242,7 @@ impl ExtensionManager {
             ExtensionConfig::Builtin {
                 name,
                 display_name: _,
+                description: _,
                 timeout,
                 bundled: _,
             } => {