feat: wire existing-endpoint flow for gateway targets

Author: aidandaly24

src/cli/commands/add/actions.ts

@@ -23,7 +23,11 @@ import {
   createCredential,
   resolveCredentialStrategy,
 } from '../../operations/identity/create-identity';
-import { createGatewayFromWizard, createToolFromWizard } from '../../operations/mcp/create-mcp';
+import {
+  createExternalGatewayTarget,
+  createGatewayFromWizard,
+  createToolFromWizard,
+} from '../../operations/mcp/create-mcp';
 import { createMemory } from '../../operations/memory/create-memory';
 import { createRenderer } from '../../templates';
 import type { MemoryOption } from '../../tui/screens/generate/types';
@@ -334,6 +338,10 @@ export async function handleAddGatewayTarget(
     }
 
     const config = buildGatewayTargetConfig(options);
+    if (config.source === 'existing-endpoint') {
+      const result = await createExternalGatewayTarget(config);
+      return { success: true, toolName: result.toolName };
+    }
     const result = await createToolFromWizard(config);
     return { success: true, toolName: result.toolName, sourcePath: result.projectPath };
   } catch (err) {

src/cli/commands/add/validate.ts

@@ -198,6 +198,9 @@ export async function validateAddGatewayTargetOptions(options: AddGatewayTargetO
   }
 
   if (options.source === 'existing-endpoint') {
+    if (options.host) {
+      return { valid: false, error: '--host is not applicable for existing endpoint targets' };
+    }
     if (!options.endpoint) {
       return { valid: false, error: '--endpoint is required when source is existing-endpoint' };
     }

src/cli/tui/screens/mcp/useAddGatewayTargetWizard.ts

@@ -7,13 +7,13 @@ import { useCallback, useMemo, useState } from 'react';
 /**
  * Dynamic steps based on source.
  * - Existing endpoint: name → source → endpoint → gateway → confirm
- * - Create new: name → source → language → gateway → host → confirm
+ * - Create new: name → source → language → gateway → confirm
  */
 function getSteps(source?: 'existing-endpoint' | 'create-new'): AddGatewayTargetStep[] {
   if (source === 'existing-endpoint') {
     return ['name', 'source', 'endpoint', 'gateway', 'confirm'];
   }
-  return ['name', 'source', 'language', 'gateway', 'host', 'confirm'];
+  return ['name', 'source', 'language', 'gateway', 'confirm'];
 }
 
 function deriveToolDefinition(name: string): ToolDefinition {
@@ -91,13 +91,8 @@ export function useAddGatewayTargetWizard(existingGateways: string[] = []) {
 
   const setGateway = useCallback((gateway: string) => {
     setConfig(c => {
-      const isExternal = c.source === 'existing-endpoint';
       const isSkipped = gateway === SKIP_FOR_NOW;
-      if (isExternal || isSkipped) {
-        setStep('confirm');
-      } else {
-        setStep('host');
-      }
+      setStep('confirm');
       return { ...c, gateway: isSkipped ? undefined : gateway };
     });
   }, []);