feat: add ping command

src/nodeBridge.ts

@@ -436,6 +436,62 @@ class NodeHandlerRegistry {
       };
     });
 
+    // test a specific model
+    this.messageBus.registerHandler('models.test', async (data) => {
+      const { cwd, modelId } = data;
+      const context = await this.getContext(cwd);
+      const startTime = Date.now();
+
+      try {
+        const { model, error } = await resolveModelWithContext(
+          modelId,
+          context,
+        );
+
+        if (error || !model) {
+          return {
+            success: false,
+            error:
+              error instanceof Error
+                ? error.message
+                : error || 'Model not found',
+            responseTime: Date.now() - startTime,
+          };
+        }
+
+        const m = await model._mCreator();
+        const result = await m.doGenerate({
+          prompt: [
+            {
+              role: 'user',
+              content: [{ type: 'text', text: 'Hi' }],
+            },
+          ],
+        });
+
+        const hasResponse = result.content?.some(
+          (c) => c.type === 'text' && (c as { text: string }).text,
+        );
+
+        return {
+          success: true,
+          data: {
+            modelId,
+            providerName: model.provider.name,
+            modelName: model.model.name,
+            responseTime: Date.now() - startTime,
+            hasResponse,
+          },
+        };
+      } catch (err) {
+        return {
+          success: false,
+          error: err instanceof Error ? err.message : 'Unknown error',
+          responseTime: Date.now() - startTime,
+        };
+      }
+    });
+
     //////////////////////////////////////////////
     // outputStyles
     this.messageBus.registerHandler('outputStyles.list', async (data) => {
@@ -2356,6 +2412,17 @@ function buildSignalKey(cwd: string, sessionId: string) {
   return `${cwd}/${sessionId}`;
 }
 
+// Default API endpoints for providers that use SDK defaults
+const DEFAULT_PROVIDER_ENDPOINTS: Record<string, string> = {
+  openai: 'https://api.openai.com',
+  google: 'https://generativelanguage.googleapis.com',
+  xai: 'https://api.x.ai',
+  anthropic: 'https://api.anthropic.com',
+  openrouter: 'https://openrouter.ai',
+  cerebras: 'https://api.cerebras.ai',
+  antigravity: 'https://antigravity.google',
+};
+
 function normalizeProviders(providers: ProvidersMap, context: Context) {
   return Object.values(providers as Record<string, Provider>).map(
     (provider) => {
@@ -2382,12 +2449,16 @@ function normalizeProviders(providers: ProvidersMap, context: Context) {
         provider.options?.apiKey ||
         context.config.provider?.[provider.id]?.options?.apiKey
       );
+      // Use provider.api or fallback to default endpoint
+      const api =
+        provider.api || DEFAULT_PROVIDER_ENDPOINTS[provider.id] || undefined;
       return {
         id: provider.id,
         name: provider.name,
         doc: provider.doc,
         env: provider.env,
         apiEnv: provider.apiEnv,
+        api,
         validEnvs,
         hasApiKey,
       };

src/nodeBridge.types.ts

@@ -230,6 +230,23 @@ type ModelsListOutput = {
   };
 };
 
+type ModelsTestInput = {
+  cwd: string;
+  modelId: string;
+};
+type ModelsTestOutput = {
+  success: boolean;
+  error?: string;
+  responseTime: number;
+  data?: {
+    modelId: string;
+    providerName: string;
+    modelName: string;
+    responseTime: number;
+    hasResponse: boolean;
+  };
+};
+
 // ============================================================================
 // Output Styles Handlers
 // ============================================================================
@@ -435,6 +452,7 @@ type ProvidersListOutput = {
       doc?: string;
       env?: string[];
       apiEnv?: string[];
+      api?: string;
       validEnvs: string[];
       hasApiKey: boolean;
     }>;
@@ -863,6 +881,7 @@ export type HandlerMap = {
 
   // Models handlers
   'models.list': { input: ModelsListInput; output: ModelsListOutput };
+  'models.test': { input: ModelsTestInput; output: ModelsTestOutput };
 
   // Output styles handlers
   'outputStyles.list': {

src/slash-commands/builtin/index.ts

@@ -12,6 +12,7 @@ import { createLogoutCommand } from './logout';
 import { createMcpCommand } from './mcp';
 import { createModelCommand } from './model';
 import { createOutputStyleCommand } from './output-style';
+import { pingCommand } from './ping';
 import { createResumeCommand } from './resume';
 import { createReviewCommand } from './review';
 import { brainstormCommand } from './spec/brainstorm';
@@ -38,6 +39,7 @@ export function createBuiltinCommands(opts: {
     createMcpCommand(opts),
     createModelCommand(opts),
     createOutputStyleCommand(),
+    pingCommand,
     createResumeCommand(),
     createReviewCommand(opts.language),
     createTerminalSetupCommand(),