feat(providers): add xAI SuperGrok OAuth subscription provider

crates/goose/src/providers/catalog.rs

@@ -593,6 +593,23 @@ const SETUP_METADATA: &[CuratedSetupMetadata] = &[
         secret_field_default: Some(API_KEY_FIELD),
         field_overrides: &[],
     },
+    CuratedSetupMetadata {
+        provider_id: "xai_oauth",
+        category: ProviderSetupCategory::Model,
+        setup_method: ProviderSetupMethod::OauthBrowser,
+        group: ProviderSetupGroup::Default,
+        display_name: Some("xAI (SuperGrok)"),
+        description: Some("Grok via SuperGrok subscription"),
+        docs_url: Some("https://x.ai/grok"),
+        aliases: &[],
+        native_connect_query: Some("xAI Grok"),
+        binary_name: None,
+        setup_capabilities: setup_capabilities(false, true, false),
+        show_only_when_installed: false,
+        synthetic: false,
+        secret_field_default: None,
+        field_overrides: &[],
+    },
     CuratedSetupMetadata {
         provider_id: "groq",
         category: ProviderSetupCategory::Model,

crates/goose/src/providers/init.rs

@@ -38,6 +38,7 @@ use super::{
     snowflake::SnowflakeProvider,
     tetrate::TetrateProvider,
     xai::XaiProvider,
+    xai_oauth::XaiOAuthProvider,
 };
 use crate::config::ExtensionConfig;
 use crate::model::ModelConfig;
@@ -87,6 +88,7 @@ async fn init_registry() -> RwLock<ProviderRegistry> {
         registry.register::<SnowflakeProvider>(false);
         registry.register::<TetrateProvider>(true);
         registry.register::<XaiProvider>(false);
+        registry.register::<XaiOAuthProvider>(true);
     });
     // Register cleanup functions for providers with cached state
     registry.set_cleanup(
@@ -109,6 +111,10 @@ async fn init_registry() -> RwLock<ProviderRegistry> {
         "chatgpt_codex",
         Arc::new(|| Box::pin(ChatGptCodexProvider::cleanup())),
     );
+    registry.set_cleanup(
+        "xai_oauth",
+        Arc::new(|| Box::pin(XaiOAuthProvider::cleanup())),
+    );
 
     if let Err(e) = load_custom_providers_into_registry(&mut registry) {
         tracing::warn!("Failed to load custom providers: {}", e);

crates/goose/src/providers/mod.rs

@@ -58,6 +58,7 @@ pub mod usage_estimator;
 pub mod utils;
 
 pub mod xai;
+pub mod xai_oauth;
 
 pub use init::{
     cleanup_provider, create, create_with_default_model, create_with_named_model,