feat: LLM provider configuration, secret store, and setup wizard

Add secure credential storage (GNOME Keyring + file fallback),
LLM provider config in ~/.mcpctl/config.json, interactive setup
wizard (mcpctl config setup), and wire configured provider into
mcplocal for smart pagination summaries.

- Secret store: SecretStore interface, GnomeKeyringStore, FileSecretStore
- Config schema: LlmConfigSchema with provider/model/url/binaryPath
- Setup wizard: arrow-key provider/model selection, dynamic model fetch
- Provider factory: creates ProviderRegistry from config + secrets
- Status: shows LLM line with hint when not configured
- 572 tests passing across all packages

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/cli/tests/commands/config-setup.test.ts

@@ -0,0 +1,268 @@
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { createConfigSetupCommand } from '../../src/commands/config-setup.js';
+import type { ConfigSetupDeps, ConfigSetupPrompt } from '../../src/commands/config-setup.js';
+import type { SecretStore } from '@mcpctl/shared';
+import { mkdtempSync, rmSync, readFileSync } from 'node:fs';
+import { join } from 'node:path';
+import { tmpdir } from 'node:os';
+
+let tempDir: string;
+let logs: string[];
+
+beforeEach(() => {
+  tempDir = mkdtempSync(join(tmpdir(), 'mcpctl-config-setup-test-'));
+  logs = [];
+});
+
+function cleanup() {
+  rmSync(tempDir, { recursive: true, force: true });
+}
+
+function mockSecretStore(secrets: Record<string, string> = {}): SecretStore {
+  const store: Record<string, string> = { ...secrets };
+  return {
+    get: vi.fn(async (key: string) => store[key] ?? null),
+    set: vi.fn(async (key: string, value: string) => { store[key] = value; }),
+    delete: vi.fn(async () => true),
+    backend: () => 'mock',
+  };
+}
+
+function mockPrompt(answers: unknown[]): ConfigSetupPrompt {
+  let callIndex = 0;
+  return {
+    select: vi.fn(async () => answers[callIndex++]),
+    input: vi.fn(async () => answers[callIndex++] as string),
+    password: vi.fn(async () => answers[callIndex++] as string),
+    confirm: vi.fn(async () => answers[callIndex++] as boolean),
+  };
+}
+
+function buildDeps(overrides: {
+  secrets?: Record<string, string>;
+  answers?: unknown[];
+  fetchModels?: ConfigSetupDeps['fetchModels'];
+} = {}): ConfigSetupDeps {
+  return {
+    configDeps: { configDir: tempDir },
+    secretStore: mockSecretStore(overrides.secrets),
+    log: (...args: string[]) => logs.push(args.join(' ')),
+    prompt: mockPrompt(overrides.answers ?? []),
+    fetchModels: overrides.fetchModels ?? vi.fn(async () => []),
+  };
+}
+
+function readConfig(): Record<string, unknown> {
+  const raw = readFileSync(join(tempDir, 'config.json'), 'utf-8');
+  return JSON.parse(raw) as Record<string, unknown>;
+}
+
+async function runSetup(deps: ConfigSetupDeps): Promise<void> {
+  const cmd = createConfigSetupCommand(deps);
+  await cmd.parseAsync([], { from: 'user' });
+}
+
+describe('config setup wizard', () => {
+  describe('provider: none', () => {
+    it('disables LLM and saves config', async () => {
+      const deps = buildDeps({ answers: ['none'] });
+      await runSetup(deps);
+
+      const config = readConfig();
+      expect(config.llm).toEqual({ provider: 'none' });
+      expect(logs.some((l) => l.includes('LLM disabled'))).toBe(true);
+      cleanup();
+    });
+  });
+
+  describe('provider: gemini-cli', () => {
+    it('saves gemini-cli with selected model', async () => {
+      // Answers: select provider, select model, confirm custom binary=false
+      const deps = buildDeps({ answers: ['gemini-cli', 'gemini-2.5-flash', false] });
+      await runSetup(deps);
+
+      const config = readConfig();
+      expect((config.llm as Record<string, unknown>).provider).toBe('gemini-cli');
+      expect((config.llm as Record<string, unknown>).model).toBe('gemini-2.5-flash');
+      cleanup();
+    });
+
+    it('saves gemini-cli with custom model and binary path', async () => {
+      // Answers: select provider, select custom, enter model name, confirm custom binary=true, enter path
+      const deps = buildDeps({ answers: ['gemini-cli', '__custom__', 'gemini-3.0-flash', true, '/opt/gemini'] });
+      await runSetup(deps);
+
+      const config = readConfig();
+      const llm = config.llm as Record<string, unknown>;
+      expect(llm.model).toBe('gemini-3.0-flash');
+      expect(llm.binaryPath).toBe('/opt/gemini');
+      cleanup();
+    });
+  });
+
+  describe('provider: ollama', () => {
+    it('fetches models and allows selection', async () => {
+      const fetchModels = vi.fn(async () => ['llama3.2', 'codellama', 'mistral']);
+      // Answers: select provider, enter URL, select model
+      const deps = buildDeps({
+        answers: ['ollama', 'http://localhost:11434', 'codellama'],
+        fetchModels,
+      });
+      await runSetup(deps);
+
+      expect(fetchModels).toHaveBeenCalledWith('http://localhost:11434', '/api/tags');
+      const config = readConfig();
+      const llm = config.llm as Record<string, unknown>;
+      expect(llm.provider).toBe('ollama');
+      expect(llm.model).toBe('codellama');
+      expect(llm.url).toBe('http://localhost:11434');
+      cleanup();
+    });
+
+    it('falls back to manual input when fetch fails', async () => {
+      const fetchModels = vi.fn(async () => []);
+      // Answers: select provider, enter URL, enter model manually
+      const deps = buildDeps({
+        answers: ['ollama', 'http://localhost:11434', 'llama3.2'],
+        fetchModels,
+      });
+      await runSetup(deps);
+
+      const config = readConfig();
+      expect((config.llm as Record<string, unknown>).model).toBe('llama3.2');
+      cleanup();
+    });
+  });
+
+  describe('provider: anthropic', () => {
+    it('prompts for API key and saves to secret store', async () => {
+      // Answers: select provider, enter API key, select model
+      const deps = buildDeps({
+        answers: ['anthropic', 'sk-ant-new-key', 'claude-haiku-3-5-20241022'],
+      });
+      await runSetup(deps);
+
+      expect(deps.secretStore.set).toHaveBeenCalledWith('anthropic-api-key', 'sk-ant-new-key');
+      const config = readConfig();
+      const llm = config.llm as Record<string, unknown>;
+      expect(llm.provider).toBe('anthropic');
+      expect(llm.model).toBe('claude-haiku-3-5-20241022');
+      // API key should NOT be in config file
+      expect(llm).not.toHaveProperty('apiKey');
+      cleanup();
+    });
+
+    it('shows existing key masked and allows keeping it', async () => {
+      // Answers: select provider, confirm change=false, select model
+      const deps = buildDeps({
+        secrets: { 'anthropic-api-key': 'sk-ant-existing-key-1234' },
+        answers: ['anthropic', false, 'claude-sonnet-4-20250514'],
+      });
+      await runSetup(deps);
+
+      // Should NOT have called set (kept existing key)
+      expect(deps.secretStore.set).not.toHaveBeenCalled();
+      const config = readConfig();
+      expect((config.llm as Record<string, unknown>).model).toBe('claude-sonnet-4-20250514');
+      cleanup();
+    });
+
+    it('allows replacing existing key', async () => {
+      // Answers: select provider, confirm change=true, enter new key, select model
+      const deps = buildDeps({
+        secrets: { 'anthropic-api-key': 'sk-ant-old' },
+        answers: ['anthropic', true, 'sk-ant-new', 'claude-haiku-3-5-20241022'],
+      });
+      await runSetup(deps);
+
+      expect(deps.secretStore.set).toHaveBeenCalledWith('anthropic-api-key', 'sk-ant-new');
+      cleanup();
+    });
+  });
+
+  describe('provider: vllm', () => {
+    it('fetches models from vLLM and allows selection', async () => {
+      const fetchModels = vi.fn(async () => ['my-model', 'llama-70b']);
+      // Answers: select provider, enter URL, select model
+      const deps = buildDeps({
+        answers: ['vllm', 'http://gpu:8000', 'llama-70b'],
+        fetchModels,
+      });
+      await runSetup(deps);
+
+      expect(fetchModels).toHaveBeenCalledWith('http://gpu:8000', '/v1/models');
+      const config = readConfig();
+      const llm = config.llm as Record<string, unknown>;
+      expect(llm.provider).toBe('vllm');
+      expect(llm.url).toBe('http://gpu:8000');
+      expect(llm.model).toBe('llama-70b');
+      cleanup();
+    });
+  });
+
+  describe('provider: openai', () => {
+    it('prompts for key, model, and optional custom endpoint', async () => {
+      // Answers: select provider, enter key, enter model, confirm custom URL=true, enter URL
+      const deps = buildDeps({
+        answers: ['openai', 'sk-openai-key', 'gpt-4o', true, 'https://custom.api.com'],
+      });
+      await runSetup(deps);
+
+      expect(deps.secretStore.set).toHaveBeenCalledWith('openai-api-key', 'sk-openai-key');
+      const config = readConfig();
+      const llm = config.llm as Record<string, unknown>;
+      expect(llm.provider).toBe('openai');
+      expect(llm.model).toBe('gpt-4o');
+      expect(llm.url).toBe('https://custom.api.com');
+      cleanup();
+    });
+
+    it('skips custom URL when not requested', async () => {
+      // Answers: select provider, enter key, enter model, confirm custom URL=false
+      const deps = buildDeps({
+        answers: ['openai', 'sk-openai-key', 'gpt-4o-mini', false],
+      });
+      await runSetup(deps);
+
+      const config = readConfig();
+      const llm = config.llm as Record<string, unknown>;
+      expect(llm.url).toBeUndefined();
+      cleanup();
+    });
+  });
+
+  describe('provider: deepseek', () => {
+    it('prompts for key and model', async () => {
+      // Answers: select provider, enter key, select model
+      const deps = buildDeps({
+        answers: ['deepseek', 'sk-ds-key', 'deepseek-chat'],
+      });
+      await runSetup(deps);
+
+      expect(deps.secretStore.set).toHaveBeenCalledWith('deepseek-api-key', 'sk-ds-key');
+      const config = readConfig();
+      const llm = config.llm as Record<string, unknown>;
+      expect(llm.provider).toBe('deepseek');
+      expect(llm.model).toBe('deepseek-chat');
+      cleanup();
+    });
+  });
+
+  describe('output messages', () => {
+    it('shows restart instruction', async () => {
+      const deps = buildDeps({ answers: ['gemini-cli', 'gemini-2.5-flash', false] });
+      await runSetup(deps);
+
+      expect(logs.some((l) => l.includes('systemctl --user restart mcplocal'))).toBe(true);
+      cleanup();
+    });
+
+    it('shows configured provider and model', async () => {
+      const deps = buildDeps({ answers: ['gemini-cli', 'gemini-2.5-flash', false] });
+      await runSetup(deps);
+
+      expect(logs.some((l) => l.includes('gemini-cli') && l.includes('gemini-2.5-flash'))).toBe(true);
+      cleanup();
+    });
+  });
+});

src/cli/tests/commands/status.test.ts

@@ -126,4 +126,69 @@ describe('status command', () => {
     expect(output.join('\n')).toContain('official');
     expect(output.join('\n')).not.toContain('glama');
   });
+
+  it('shows LLM not configured hint when no LLM is set', async () => {
+    const cmd = createStatusCommand({
+      configDeps: { configDir: tempDir },
+      credentialsDeps: { configDir: tempDir },
+      log,
+      checkHealth: async () => true,
+    });
+    await cmd.parseAsync([], { from: 'user' });
+    const out = output.join('\n');
+    expect(out).toContain('LLM:');
+    expect(out).toContain('not configured');
+    expect(out).toContain('mcpctl config setup');
+  });
+
+  it('shows configured LLM provider and model', async () => {
+    saveConfig({ ...DEFAULT_CONFIG, llm: { provider: 'anthropic', model: 'claude-haiku-3-5-20241022' } }, { configDir: tempDir });
+    const cmd = createStatusCommand({
+      configDeps: { configDir: tempDir },
+      credentialsDeps: { configDir: tempDir },
+      log,
+      checkHealth: async () => true,
+    });
+    await cmd.parseAsync([], { from: 'user' });
+    const out = output.join('\n');
+    expect(out).toContain('LLM:');
+    expect(out).toContain('anthropic / claude-haiku-3-5-20241022');
+  });
+
+  it('shows not configured when LLM provider is none', async () => {
+    saveConfig({ ...DEFAULT_CONFIG, llm: { provider: 'none' } }, { configDir: tempDir });
+    const cmd = createStatusCommand({
+      configDeps: { configDir: tempDir },
+      credentialsDeps: { configDir: tempDir },
+      log,
+      checkHealth: async () => true,
+    });
+    await cmd.parseAsync([], { from: 'user' });
+    expect(output.join('\n')).toContain('not configured');
+  });
+
+  it('includes llm field in JSON output', async () => {
+    saveConfig({ ...DEFAULT_CONFIG, llm: { provider: 'gemini-cli', model: 'gemini-2.5-flash' } }, { configDir: tempDir });
+    const cmd = createStatusCommand({
+      configDeps: { configDir: tempDir },
+      credentialsDeps: { configDir: tempDir },
+      log,
+      checkHealth: async () => true,
+    });
+    await cmd.parseAsync(['-o', 'json'], { from: 'user' });
+    const parsed = JSON.parse(output[0]) as Record<string, unknown>;
+    expect(parsed['llm']).toBe('gemini-cli / gemini-2.5-flash');
+  });
+
+  it('includes null llm in JSON output when not configured', async () => {
+    const cmd = createStatusCommand({
+      configDeps: { configDir: tempDir },
+      credentialsDeps: { configDir: tempDir },
+      log,
+      checkHealth: async () => true,
+    });
+    await cmd.parseAsync(['-o', 'json'], { from: 'user' });
+    const parsed = JSON.parse(output[0]) as Record<string, unknown>;
+    expect(parsed['llm']).toBeNull();
+  });
 });