feat: keep provider records on switch, only mark active; filter on save

src-tauri/src/kimi_code_io.rs

@@ -124,6 +124,7 @@ pub fn kimi_code_to_config(value: &TomlValue) -> Config {
                     official_url: None,
                     managed,
                     enabled,
+                    active: true,
                     raw_other,
                 },
             );
@@ -225,8 +226,15 @@ pub fn config_to_kimi_code(config: &Config, existing: Option<&TomlValue>) -> Tom
             .unwrap_or(TomlValue::String("".to_string())),
     );
 
+    let is_kimi_native = |p: &Provider| p.managed;
+
     let mut providers_table = Table::new();
     for (name, provider) in &config.providers {
+        // Skip inactive custom providers when writing to Kimi Code config.
+        // Kimi native (managed) providers are always preserved.
+        if !is_kimi_native(provider) && !provider.active {
+            continue;
+        }
         let mut pt = Table::new();
         pt.insert("type".to_string(), TomlValue::String(provider.provider_type.as_str().to_string()));
         if let Some(base_url) = provider.base_url.clone().filter(|s| !s.is_empty()) {
@@ -261,8 +269,19 @@ pub fn config_to_kimi_code(config: &Config, existing: Option<&TomlValue>) -> Tom
     }
     root.insert("providers".to_string(), TomlValue::Table(providers_table));
 
+    // Collect provider names that survived the filter above.
+    let active_provider_names: std::collections::HashSet<&str> = config
+        .providers
+        .values()
+        .filter(|p| is_kimi_native(p) || p.active)
+        .map(|p| p.name.as_str())
+        .collect();
+
     let mut models_table = Table::new();
     for (alias, model) in &config.models {
+        if !active_provider_names.contains(model.provider.as_str()) {
+            continue;
+        }
         let mut mt = Table::new();
         mt.insert("provider".to_string(), TomlValue::String(model.provider.clone()));
         mt.insert("model".to_string(), TomlValue::String(model.model.clone()));

src-tauri/src/models.rs

@@ -83,6 +83,8 @@ pub struct Provider {
     pub managed: bool,
     #[serde(default = "default_true")]
     pub enabled: bool,
+    #[serde(default)]
+    pub active: bool,
     #[serde(default, skip_serializing_if = "Value::is_null")]
     pub raw_other: Value,
 }
@@ -98,6 +100,7 @@ impl PartialEq for Provider {
             && self.official_url == other.official_url
             && self.managed == other.managed
             && self.enabled == other.enabled
+            && self.active == other.active
             && self.raw_other == other.raw_other
     }
 }

src-tauri/src/pi_io.rs

@@ -201,6 +201,7 @@ pub fn pi_file_to_config(file: &PiModelsFile) -> Config {
             official_url: None,
             managed: false,
             enabled: pi_provider.enabled,
+            active: true,
             raw_other: pi_provider.extra.clone(),
         };
 

src/App.tsx

@@ -194,37 +194,27 @@ export default function App() {
   const handleSwitchProvider = (name: string) => {
     updateConfig((cfg) => {
       const target = cfg.providers[name];
-      if (!target) return cfg;
+      if (!target || target.managed) return cfg;
 
       const isKimiNative = (p: Provider) => p.managed === true;
 
-      // Keep Kimi native (managed) providers and the selected provider only.
+      // Mark the selected provider as active and deactivate other custom providers.
+      // Kimi native providers are left untouched. No provider/model records are deleted.
       const providers: Record<string, Provider> = {};
       for (const [key, p] of Object.entries(cfg.providers)) {
-        if (isKimiNative(p)) {
-          providers[key] = p;
-        }
-      }
-      providers[name] = { ...target, enabled: true };
-
-      // Drop models whose provider was removed.
-      const models: Record<string, Model> = {};
-      for (const [key, m] of Object.entries(cfg.models)) {
-        if (providers[m.provider]) {
-          models[key] = m;
-        }
+        providers[key] = { ...p, active: isKimiNative(p) ? undefined : key === name };
       }
 
       // Set default model to the first model of the selected provider.
       let default_model: string | null = null;
-      for (const [key, m] of Object.entries(models)) {
+      for (const [key, m] of Object.entries(cfg.models)) {
         if (m.provider === name) {
           default_model = key;
           break;
         }
       }
 
-      return { ...cfg, providers, models, default_model };
+      return { ...cfg, providers, default_model };
     });
   };
 

src/components/ProviderList.tsx

@@ -93,10 +93,7 @@ export function ProviderList({
                 ? models[defaultModel]?.display_name || defaultModel
                 : null;
               const isKimiNative = provider.managed === true;
-              const isActive =
-                !isKimiNative &&
-                defaultModel !== null &&
-                models[defaultModel]?.provider === provider.name;
+              const isActive = !isKimiNative && provider.active === true;
 
               return (
                 <div

src/types/index.ts

@@ -22,6 +22,8 @@ export interface Provider {
   managed?: boolean;
   /** Whether the provider is enabled/activated. */
   enabled?: boolean;
+  /** Whether this provider is the currently active one for Kimi Code. */
+  active?: boolean;
   /** Extra agent-specific provider fields preserved across edits. */
   raw_other?: unknown;
 }