feat: upgrade to rmcp 0.12.0 and sacp 10.0.0 by removing SSE transport (#6304)

Signed-off-by: Adrian Cole <adrian@tetrate.io>

crates/goose/src/config/extensions.rs

@@ -41,8 +41,8 @@ fn get_extensions_map() -> IndexMap<String, ExtensionEntry> {
     let mut extensions_map = IndexMap::with_capacity(raw.len());
     for (k, v) in raw {
         match (k, serde_yaml::from_value::<ExtensionEntry>(v)) {
-            (serde_yaml::Value::String(s), Ok(entry)) => {
-                extensions_map.insert(s, entry);
+            (serde_yaml::Value::String(key), Ok(entry)) => {
+                extensions_map.insert(key, entry);
             }
             (k, v) => {
                 warn!(
@@ -134,3 +134,24 @@ pub fn get_enabled_extensions() -> Vec<ExtensionConfig> {
         .map(|ext| ext.config)
         .collect()
 }
+
+pub fn get_warnings() -> Vec<String> {
+    let raw: Mapping = Config::global()
+        .get_param(EXTENSIONS_CONFIG_KEY)
+        .unwrap_or_default();
+
+    let mut warnings = Vec::new();
+    for (k, v) in raw {
+        if let (serde_yaml::Value::String(key), Ok(entry)) =
+            (k, serde_yaml::from_value::<ExtensionEntry>(v))
+        {
+            if matches!(entry.config, ExtensionConfig::Sse { .. }) {
+                warnings.push(format!(
+                    "'{}': SSE is unsupported, migrate to streamable_http",
+                    key
+                ));
+            }
+        }
+    }
+    warnings
+}

crates/goose/src/config/mod.rs

@@ -15,7 +15,8 @@ pub use declarative_providers::DeclarativeProviderConfig;
 pub use experiments::ExperimentManager;
 pub use extensions::{
     get_all_extension_names, get_all_extensions, get_enabled_extensions, get_extension_by_name,
-    is_extension_enabled, remove_extension, set_extension, set_extension_enabled, ExtensionEntry,
+    get_warnings, is_extension_enabled, remove_extension, set_extension, set_extension_enabled,
+    ExtensionEntry,
 };
 pub use goose_mode::GooseMode;
 pub use permission::PermissionManager;