fix(wizard): avoid rerunning completed setup steps

packages/mosaic/src/stages/gateway-config.spec.ts

@@ -167,6 +167,45 @@ describe('gatewayConfigStage', () => {
     expect(state.gateway?.regeneratedConfig).toBe(true);
   });
 
+  it('does not ask for a gateway API key when provider setup was completed with no key', async () => {
+    delete process.env['MOSAIC_ASSUME_YES'];
+    const originalIsTTY = process.stdin.isTTY;
+    Object.defineProperty(process.stdin, 'isTTY', { value: true, configurable: true });
+
+    try {
+      const textFn = vi.fn(async (opts: { message: string; initialValue?: string }) => {
+        if (opts.message === 'Gateway port') return opts.initialValue ?? '14242';
+        if (opts.message === 'Web UI hostname (for browser access)') return 'localhost';
+        if (opts.message.includes('API_KEY')) {
+          throw new Error('gateway API key prompt should be skipped');
+        }
+        return '';
+      });
+      const p = buildPrompter({ text: textFn, select: vi.fn().mockResolvedValue('local') });
+      const state = makeState('/home/user/.config/mosaic');
+
+      const result = await gatewayConfigStage(p, state, {
+        host: 'localhost',
+        defaultPort: 14242,
+        skipInstall: true,
+        providerType: 'none',
+      });
+
+      expect(result.ready).toBe(true);
+      expect(textFn).not.toHaveBeenCalledWith(
+        expect.objectContaining({ message: expect.stringContaining('API_KEY') }),
+      );
+      const envContents = readFileSync(daemonState.envFile, 'utf-8');
+      expect(envContents).not.toContain('ANTHROPIC_API_KEY=');
+      expect(envContents).not.toContain('OPENAI_API_KEY=');
+    } finally {
+      Object.defineProperty(process.stdin, 'isTTY', {
+        value: originalIsTTY,
+        configurable: true,
+      });
+    }
+  });
+
   it('short-circuits when gateway is already fully installed and user declines rerun', async () => {
     // Pre-populate both files + running daemon + meta with token
     const fs = require('node:fs');

packages/mosaic/src/stages/gateway-config.ts

@@ -506,6 +506,9 @@ async function collectAndWriteConfig(
     if (opts.providerKey) {
       anthropicKey = opts.providerKey;
       p.log(`Using API key from provider setup (${opts.providerType ?? 'unknown'}).`);
+    } else if (opts.providerType === 'none') {
+      anthropicKey = '';
+      p.log('No API key provided during provider setup; skipping gateway API key prompt.');
     } else {
       anthropicKey = await p.text({
         message: 'ANTHROPIC_API_KEY (optional, press Enter to skip)',

packages/mosaic/src/stages/quick-start.ts

@@ -37,6 +37,7 @@ export async function quickStartPath(
 
   // 1. Provider setup (first question)
   await providerSetupStage(prompter, state);
+  state.completedSections?.add('providers');
 
   // Apply sensible defaults for everything else
   state.soul.agentName ??= 'Mosaic';
@@ -57,6 +58,7 @@ export async function quickStartPath(
 
   // Skills (recommended set, no user input in quick mode)
   await skillsSelectStage(prompter, state);
+  state.completedSections?.add('skills');
 
   // Finalize writes configs/assets/skills, but defer the success summary until
   // after the gateway health/bootstrap gates complete.
@@ -75,7 +77,7 @@ export async function quickStartPath(
         portOverride: options.gatewayPortOverride,
         skipInstall: options.skipGatewayNpmInstall,
         providerKey: state.providerKey,
-        providerType: state.providerType ?? 'none',
+        providerType: state.providerType,
       });
 
       if (!configResult.ready || !configResult.host || !configResult.port) {

packages/mosaic/src/wizard.ts

@@ -126,6 +126,11 @@ type MenuChoice =
   | 'advanced'
   | 'finish';
 
+function menuSectionKey(section: MenuChoice): MenuSection | null {
+  if (section === 'quick-start' || section === 'finish') return null;
+  return section === 'gateway-config' ? 'gateway' : section;
+}
+
 function menuLabel(section: MenuChoice, completed: Set<MenuSection>): string {
   const labels: Record<MenuChoice, string> = {
     'quick-start': 'Quick Start',
@@ -137,14 +142,24 @@ function menuLabel(section: MenuChoice, completed: Set<MenuSection>): string {
     finish: 'Finish & Apply',
   };
   const base = labels[section];
-  const sectionKey: MenuSection =
-    section === 'gateway-config' ? 'gateway' : (section as MenuSection);
-  if (completed.has(sectionKey)) {
+  const sectionKey = menuSectionKey(section);
+  if (sectionKey && completed.has(sectionKey)) {
     return `${base} [done]`;
   }
   return base;
 }
 
+function skipCompletedMenuChoice(
+  prompter: WizardPrompter,
+  completed: Set<MenuSection>,
+  choice: MenuChoice,
+): boolean {
+  const sectionKey = menuSectionKey(choice);
+  if (!sectionKey || !completed.has(sectionKey)) return false;
+  prompter.log(`${menuLabel(choice, completed)} is already complete; skipping.`);
+  return true;
+}
+
 async function runMenuLoop(
   prompter: WizardPrompter,
   state: WizardState,
@@ -201,21 +216,25 @@ async function runMenuLoop(
         return; // Quick start is a complete flow — exit menu
 
       case 'providers':
+        if (skipCompletedMenuChoice(prompter, completed, choice)) break;
         await providerSetupStage(prompter, state);
         completed.add('providers');
         break;
 
       case 'identity':
+        if (skipCompletedMenuChoice(prompter, completed, choice)) break;
         await agentIntentStage(prompter, state);
         completed.add('identity');
         break;
 
       case 'skills':
+        if (skipCompletedMenuChoice(prompter, completed, choice)) break;
         await skillsSelectStage(prompter, state);
         completed.add('skills');
         break;
 
       case 'gateway-config':
+        if (skipCompletedMenuChoice(prompter, completed, choice)) break;
         // Gateway config is handled during Finish — mark as "configured"
         // after user reviews settings.
         await runGatewaySubMenu(prompter, state, options);
@@ -223,6 +242,7 @@ async function runMenuLoop(
         break;
 
       case 'advanced':
+        if (skipCompletedMenuChoice(prompter, completed, choice)) break;
         await runAdvancedSubMenu(prompter, state);
         completed.add('advanced');
         break;
@@ -325,7 +345,7 @@ async function runFinishPath(
         portOverride: options.gatewayPortOverride,
         skipInstall: options.skipGatewayNpmInstall,
         providerKey: state.providerKey,
-        providerType: state.providerType ?? 'none',
+        providerType: state.providerType,
       });
 
       if (configResult.ready && configResult.host && configResult.port) {
@@ -396,7 +416,7 @@ async function runHeadlessPath(
         portOverride: options.gatewayPortOverride,
         skipInstall: options.skipGatewayNpmInstall,
         providerKey: state.providerKey,
-        providerType: state.providerType ?? 'none',
+        providerType: state.providerType,
       });
 
       if (!configResult.ready || !configResult.host || !configResult.port) {