feat(ui): add /settings command and UI panel (#4738)

Co-authored-by: Jacob Richman <[email protected]>

3 files changed, 773 insertions, 87 deletions

diff --git a/packages/cli/src/config/settings.ts b/packages/cli/src/config/settings.ts
index 3c4270d7..36fd50f1 100644
--- a/packages/cli/src/config/settings.ts
+++ b/packages/cli/src/config/settings.ts
@@ -9,18 +9,15 @@ import * as path from 'path';
 import { homedir, platform } from 'os';
 import * as dotenv from 'dotenv';
 import {
-  MCPServerConfig,
   GEMINI_CONFIG_DIR as GEMINI_DIR,
   getErrorMessage,
-  BugCommandSettings,
-  ChatCompressionSettings,
-  TelemetrySettings,
-  AuthType,
 } from '@google/gemini-cli-core';
 import stripJsonComments from 'strip-json-comments';
 import { DefaultLight } from '../ui/themes/default-light.js';
 import { DefaultDark } from '../ui/themes/default.js';
-import { CustomTheme } from '../ui/themes/theme.js';
+import { Settings, MemoryImportFormat } from './settingsSchema.js';
+
+export type { Settings, MemoryImportFormat };
 
 export const SETTINGS_DIRECTORY_NAME = '.gemini';
 export const USER_SETTINGS_DIR = path.join(homedir(), SETTINGS_DIRECTORY_NAME);
@@ -44,7 +41,7 @@ export function getWorkspaceSettingsPath(workspaceDir: string): string {
   return path.join(workspaceDir, SETTINGS_DIRECTORY_NAME, 'settings.json');
 }
 
-export type DnsResolutionOrder = 'ipv4first' | 'verbatim';
+export type { DnsResolutionOrder } from './settingsSchema.js';
 
 export enum SettingScope {
   User = 'User',
@@ -64,86 +61,6 @@ export interface AccessibilitySettings {
   disableLoadingPhrases?: boolean;
 }
 
-export interface Settings {
-  theme?: string;
-  customThemes?: Record<string, CustomTheme>;
-  selectedAuthType?: AuthType;
-  useExternalAuth?: boolean;
-  sandbox?: boolean | string;
-  coreTools?: string[];
-  excludeTools?: string[];
-  toolDiscoveryCommand?: string;
-  toolCallCommand?: string;
-  mcpServerCommand?: string;
-  mcpServers?: Record<string, MCPServerConfig>;
-  allowMCPServers?: string[];
-  excludeMCPServers?: string[];
-  showMemoryUsage?: boolean;
-  contextFileName?: string | string[];
-  accessibility?: AccessibilitySettings;
-  telemetry?: TelemetrySettings;
-  usageStatisticsEnabled?: boolean;
-  preferredEditor?: string;
-  bugCommand?: BugCommandSettings;
-  checkpointing?: CheckpointingSettings;
-  autoConfigureMaxOldSpaceSize?: boolean;
-  /** The model name to use (e.g 'gemini-9.0-pro') */
-  model?: string;
-
-  // Git-aware file filtering settings
-  fileFiltering?: {
-    respectGitIgnore?: boolean;
-    respectGeminiIgnore?: boolean;
-    enableRecursiveFileSearch?: boolean;
-  };
-
-  hideWindowTitle?: boolean;
-
-  hideTips?: boolean;
-  hideBanner?: boolean;
-
-  // Setting for setting maximum number of user/model/tool turns in a session.
-  maxSessionTurns?: number;
-
-  // A map of tool names to their summarization settings.
-  summarizeToolOutput?: Record<string, SummarizeToolOutputSettings>;
-
-  vimMode?: boolean;
-  memoryImportFormat?: 'tree' | 'flat';
-
-  // Flag to be removed post-launch.
-  ideModeFeature?: boolean;
-  /// IDE mode setting configured via slash command toggle.
-  ideMode?: boolean;
-
-  // Flag to be removed post-launch.
-  folderTrustFeature?: boolean;
-  // Setting to track whether Folder trust is enabled.
-  folderTrust?: boolean;
-
-  // Setting to track if the user has seen the IDE integration nudge.
-  hasSeenIdeIntegrationNudge?: boolean;
-
-  // Setting for disabling auto-update.
-  disableAutoUpdate?: boolean;
-
-  // Setting for disabling the update nag message.
-  disableUpdateNag?: boolean;
-
-  memoryDiscoveryMaxDirs?: number;
-
-  // Environment variables to exclude from project .env files
-  excludedProjectEnvVars?: string[];
-  dnsResolutionOrder?: DnsResolutionOrder;
-
-  includeDirectories?: string[];
-
-  loadMemoryFromIncludeDirectories?: boolean;
-
-  chatCompression?: ChatCompressionSettings;
-  showLineNumbers?: boolean;
-}
-
 export interface SettingsError {
   message: string;
   path: string;
diff --git a/packages/cli/src/config/settingsSchema.test.ts b/packages/cli/src/config/settingsSchema.test.ts
new file mode 100644
index 00000000..ab820ee1
--- /dev/null
+++ b/packages/cli/src/config/settingsSchema.test.ts
@@ -0,0 +1,253 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import { describe, it, expect } from 'vitest';
+import { SETTINGS_SCHEMA, Settings } from './settingsSchema.js';
+
+describe('SettingsSchema', () => {
+  describe('SETTINGS_SCHEMA', () => {
+    it('should contain all expected top-level settings', () => {
+      const expectedSettings = [
+        'theme',
+        'customThemes',
+        'showMemoryUsage',
+        'usageStatisticsEnabled',
+        'autoConfigureMaxOldSpaceSize',
+        'preferredEditor',
+        'maxSessionTurns',
+        'memoryImportFormat',
+        'memoryDiscoveryMaxDirs',
+        'contextFileName',
+        'vimMode',
+        'ideMode',
+        'accessibility',
+        'checkpointing',
+        'fileFiltering',
+        'disableAutoUpdate',
+        'hideWindowTitle',
+        'hideTips',
+        'hideBanner',
+        'selectedAuthType',
+        'useExternalAuth',
+        'sandbox',
+        'coreTools',
+        'excludeTools',
+        'toolDiscoveryCommand',
+        'toolCallCommand',
+        'mcpServerCommand',
+        'mcpServers',
+        'allowMCPServers',
+        'excludeMCPServers',
+        'telemetry',
+        'bugCommand',
+        'summarizeToolOutput',
+        'ideModeFeature',
+        'dnsResolutionOrder',
+        'excludedProjectEnvVars',
+        'disableUpdateNag',
+        'includeDirectories',
+        'loadMemoryFromIncludeDirectories',
+        'model',
+        'hasSeenIdeIntegrationNudge',
+        'folderTrustFeature',
+      ];
+
+      expectedSettings.forEach((setting) => {
+        expect(
+          SETTINGS_SCHEMA[setting as keyof typeof SETTINGS_SCHEMA],
+        ).toBeDefined();
+      });
+    });
+
+    it('should have correct structure for each setting', () => {
+      Object.entries(SETTINGS_SCHEMA).forEach(([_key, definition]) => {
+        expect(definition).toHaveProperty('type');
+        expect(definition).toHaveProperty('label');
+        expect(definition).toHaveProperty('category');
+        expect(definition).toHaveProperty('requiresRestart');
+        expect(definition).toHaveProperty('default');
+        expect(typeof definition.type).toBe('string');
+        expect(typeof definition.label).toBe('string');
+        expect(typeof definition.category).toBe('string');
+        expect(typeof definition.requiresRestart).toBe('boolean');
+      });
+    });
+
+    it('should have correct nested setting structure', () => {
+      const nestedSettings = [
+        'accessibility',
+        'checkpointing',
+        'fileFiltering',
+      ];
+
+      nestedSettings.forEach((setting) => {
+        const definition = SETTINGS_SCHEMA[
+          setting as keyof typeof SETTINGS_SCHEMA
+        ] as (typeof SETTINGS_SCHEMA)[keyof typeof SETTINGS_SCHEMA] & {
+          properties: unknown;
+        };
+        expect(definition.type).toBe('object');
+        expect(definition.properties).toBeDefined();
+        expect(typeof definition.properties).toBe('object');
+      });
+    });
+
+    it('should have accessibility nested properties', () => {
+      expect(
+        SETTINGS_SCHEMA.accessibility.properties?.disableLoadingPhrases,
+      ).toBeDefined();
+      expect(
+        SETTINGS_SCHEMA.accessibility.properties?.disableLoadingPhrases.type,
+      ).toBe('boolean');
+    });
+
+    it('should have checkpointing nested properties', () => {
+      expect(SETTINGS_SCHEMA.checkpointing.properties?.enabled).toBeDefined();
+      expect(SETTINGS_SCHEMA.checkpointing.properties?.enabled.type).toBe(
+        'boolean',
+      );
+    });
+
+    it('should have fileFiltering nested properties', () => {
+      expect(
+        SETTINGS_SCHEMA.fileFiltering.properties?.respectGitIgnore,
+      ).toBeDefined();
+      expect(
+        SETTINGS_SCHEMA.fileFiltering.properties?.respectGeminiIgnore,
+      ).toBeDefined();
+      expect(
+        SETTINGS_SCHEMA.fileFiltering.properties?.enableRecursiveFileSearch,
+      ).toBeDefined();
+    });
+
+    it('should have unique categories', () => {
+      const categories = new Set();
+
+      // Collect categories from top-level settings
+      Object.values(SETTINGS_SCHEMA).forEach((definition) => {
+        categories.add(definition.category);
+        // Also collect from nested properties
+        const defWithProps = definition as typeof definition & {
+          properties?: Record<string, unknown>;
+        };
+        if (defWithProps.properties) {
+          Object.values(defWithProps.properties).forEach(
+            (nestedDef: unknown) => {
+              const nestedDefTyped = nestedDef as { category?: string };
+              if (nestedDefTyped.category) {
+                categories.add(nestedDefTyped.category);
+              }
+            },
+          );
+        }
+      });
+
+      expect(categories.size).toBeGreaterThan(0);
+      expect(categories).toContain('General');
+      expect(categories).toContain('UI');
+      expect(categories).toContain('Mode');
+      expect(categories).toContain('Updates');
+      expect(categories).toContain('Accessibility');
+      expect(categories).toContain('Checkpointing');
+      expect(categories).toContain('File Filtering');
+      expect(categories).toContain('Advanced');
+    });
+
+    it('should have consistent default values for boolean settings', () => {
+      const checkBooleanDefaults = (schema: Record<string, unknown>) => {
+        Object.entries(schema).forEach(
+          ([_key, definition]: [string, unknown]) => {
+            const def = definition as {
+              type?: string;
+              default?: unknown;
+              properties?: Record<string, unknown>;
+            };
+            if (def.type === 'boolean') {
+              // Boolean settings can have boolean or undefined defaults (for optional settings)
+              expect(['boolean', 'undefined']).toContain(typeof def.default);
+            }
+            if (def.properties) {
+              checkBooleanDefaults(def.properties);
+            }
+          },
+        );
+      };
+
+      checkBooleanDefaults(SETTINGS_SCHEMA as Record<string, unknown>);
+    });
+
+    it('should have showInDialog property configured', () => {
+      // Check that user-facing settings are marked for dialog display
+      expect(SETTINGS_SCHEMA.showMemoryUsage.showInDialog).toBe(true);
+      expect(SETTINGS_SCHEMA.vimMode.showInDialog).toBe(true);
+      expect(SETTINGS_SCHEMA.ideMode.showInDialog).toBe(true);
+      expect(SETTINGS_SCHEMA.disableAutoUpdate.showInDialog).toBe(true);
+      expect(SETTINGS_SCHEMA.hideWindowTitle.showInDialog).toBe(true);
+      expect(SETTINGS_SCHEMA.hideTips.showInDialog).toBe(true);
+      expect(SETTINGS_SCHEMA.hideBanner.showInDialog).toBe(true);
+      expect(SETTINGS_SCHEMA.usageStatisticsEnabled.showInDialog).toBe(true);
+
+      // Check that advanced settings are hidden from dialog
+      expect(SETTINGS_SCHEMA.selectedAuthType.showInDialog).toBe(false);
+      expect(SETTINGS_SCHEMA.coreTools.showInDialog).toBe(false);
+      expect(SETTINGS_SCHEMA.mcpServers.showInDialog).toBe(false);
+      expect(SETTINGS_SCHEMA.telemetry.showInDialog).toBe(false);
+
+      // Check that some settings are appropriately hidden
+      expect(SETTINGS_SCHEMA.theme.showInDialog).toBe(false); // Changed to false
+      expect(SETTINGS_SCHEMA.customThemes.showInDialog).toBe(false); // Managed via theme editor
+      expect(SETTINGS_SCHEMA.checkpointing.showInDialog).toBe(false); // Experimental feature
+      expect(SETTINGS_SCHEMA.accessibility.showInDialog).toBe(false); // Changed to false
+      expect(SETTINGS_SCHEMA.fileFiltering.showInDialog).toBe(false); // Changed to false
+      expect(SETTINGS_SCHEMA.preferredEditor.showInDialog).toBe(false); // Changed to false
+      expect(SETTINGS_SCHEMA.autoConfigureMaxOldSpaceSize.showInDialog).toBe(
+        true,
+      );
+    });
+
+    it('should infer Settings type correctly', () => {
+      // This test ensures that the Settings type is properly inferred from the schema
+      const settings: Settings = {
+        theme: 'dark',
+        includeDirectories: ['/path/to/dir'],
+        loadMemoryFromIncludeDirectories: true,
+      };
+
+      // TypeScript should not complain about these properties
+      expect(settings.theme).toBe('dark');
+      expect(settings.includeDirectories).toEqual(['/path/to/dir']);
+      expect(settings.loadMemoryFromIncludeDirectories).toBe(true);
+    });
+
+    it('should have includeDirectories setting in schema', () => {
+      expect(SETTINGS_SCHEMA.includeDirectories).toBeDefined();
+      expect(SETTINGS_SCHEMA.includeDirectories.type).toBe('array');
+      expect(SETTINGS_SCHEMA.includeDirectories.category).toBe('General');
+      expect(SETTINGS_SCHEMA.includeDirectories.default).toEqual([]);
+    });
+
+    it('should have loadMemoryFromIncludeDirectories setting in schema', () => {
+      expect(SETTINGS_SCHEMA.loadMemoryFromIncludeDirectories).toBeDefined();
+      expect(SETTINGS_SCHEMA.loadMemoryFromIncludeDirectories.type).toBe(
+        'boolean',
+      );
+      expect(SETTINGS_SCHEMA.loadMemoryFromIncludeDirectories.category).toBe(
+        'General',
+      );
+      expect(SETTINGS_SCHEMA.loadMemoryFromIncludeDirectories.default).toBe(
+        false,
+      );
+    });
+
+    it('should have folderTrustFeature setting in schema', () => {
+      expect(SETTINGS_SCHEMA.folderTrustFeature).toBeDefined();
+      expect(SETTINGS_SCHEMA.folderTrustFeature.type).toBe('boolean');
+      expect(SETTINGS_SCHEMA.folderTrustFeature.category).toBe('General');
+      expect(SETTINGS_SCHEMA.folderTrustFeature.default).toBe(false);
+      expect(SETTINGS_SCHEMA.folderTrustFeature.showInDialog).toBe(true);
+    });
+  });
+});
diff --git a/packages/cli/src/config/settingsSchema.ts b/packages/cli/src/config/settingsSchema.ts
new file mode 100644
index 00000000..dc2582ec
--- /dev/null
+++ b/packages/cli/src/config/settingsSchema.ts
@@ -0,0 +1,516 @@
+/**
+ * @license
+ * Copyright 2025 Google LLC
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import {
+  MCPServerConfig,
+  BugCommandSettings,
+  TelemetrySettings,
+  AuthType,
+  ChatCompressionSettings,
+} from '@google/gemini-cli-core';
+import { CustomTheme } from '../ui/themes/theme.js';
+
+export interface SettingDefinition {
+  type: 'boolean' | 'string' | 'number' | 'array' | 'object';
+  label: string;
+  category: string;
+  requiresRestart: boolean;
+  default: boolean | string | number | string[] | object | undefined;
+  description?: string;
+  parentKey?: string;
+  childKey?: string;
+  key?: string;
+  properties?: SettingsSchema;
+  showInDialog?: boolean;
+}
+
+export interface SettingsSchema {
+  [key: string]: SettingDefinition;
+}
+
+export type MemoryImportFormat = 'tree' | 'flat';
+export type DnsResolutionOrder = 'ipv4first' | 'verbatim';
+
+/**
+ * The canonical schema for all settings.
+ * The structure of this object defines the structure of the `Settings` type.
+ * `as const` is crucial for TypeScript to infer the most specific types possible.
+ */
+export const SETTINGS_SCHEMA = {
+  // UI Settings
+  theme: {
+    type: 'string',
+    label: 'Theme',
+    category: 'UI',
+    requiresRestart: false,
+    default: undefined as string | undefined,
+    description: 'The color theme for the UI.',
+    showInDialog: false,
+  },
+  customThemes: {
+    type: 'object',
+    label: 'Custom Themes',
+    category: 'UI',
+    requiresRestart: false,
+    default: {} as Record<string, CustomTheme>,
+    description: 'Custom theme definitions.',
+    showInDialog: false,
+  },
+  hideWindowTitle: {
+    type: 'boolean',
+    label: 'Hide Window Title',
+    category: 'UI',
+    requiresRestart: true,
+    default: false,
+    description: 'Hide the window title bar',
+    showInDialog: true,
+  },
+  hideTips: {
+    type: 'boolean',
+    label: 'Hide Tips',
+    category: 'UI',
+    requiresRestart: false,
+    default: false,
+    description: 'Hide helpful tips in the UI',
+    showInDialog: true,
+  },
+  hideBanner: {
+    type: 'boolean',
+    label: 'Hide Banner',
+    category: 'UI',
+    requiresRestart: false,
+    default: false,
+    description: 'Hide the application banner',
+    showInDialog: true,
+  },
+  showMemoryUsage: {
+    type: 'boolean',
+    label: 'Show Memory Usage',
+    category: 'UI',
+    requiresRestart: false,
+    default: false,
+    description: 'Display memory usage information in the UI',
+    showInDialog: true,
+  },
+
+  usageStatisticsEnabled: {
+    type: 'boolean',
+    label: 'Enable Usage Statistics',
+    category: 'General',
+    requiresRestart: true,
+    default: false,
+    description: 'Enable collection of usage statistics',
+    showInDialog: true,
+  },
+  autoConfigureMaxOldSpaceSize: {
+    type: 'boolean',
+    label: 'Auto Configure Max Old Space Size',
+    category: 'General',
+    requiresRestart: true,
+    default: false,
+    description: 'Automatically configure Node.js memory limits',
+    showInDialog: true,
+  },
+  preferredEditor: {
+    type: 'string',
+    label: 'Preferred Editor',
+    category: 'General',
+    requiresRestart: false,
+    default: undefined as string | undefined,
+    description: 'The preferred editor to open files in.',
+    showInDialog: false,
+  },
+  maxSessionTurns: {
+    type: 'number',
+    label: 'Max Session Turns',
+    category: 'General',
+    requiresRestart: false,
+    default: undefined as number | undefined,
+    description:
+      'Maximum number of user/model/tool turns to keep in a session.',
+    showInDialog: false,
+  },
+  memoryImportFormat: {
+    type: 'string',
+    label: 'Memory Import Format',
+    category: 'General',
+    requiresRestart: false,
+    default: undefined as MemoryImportFormat | undefined,
+    description: 'The format to use when importing memory.',
+    showInDialog: false,
+  },
+  memoryDiscoveryMaxDirs: {
+    type: 'number',
+    label: 'Memory Discovery Max Dirs',
+    category: 'General',
+    requiresRestart: false,
+    default: undefined as number | undefined,
+    description: 'Maximum number of directories to search for memory.',
+    showInDialog: false,
+  },
+  contextFileName: {
+    type: 'object',
+    label: 'Context File Name',
+    category: 'General',
+    requiresRestart: false,
+    default: undefined as string | string[] | undefined,
+    description: 'The name of the context file.',
+    showInDialog: false,
+  },
+  vimMode: {
+    type: 'boolean',
+    label: 'Vim Mode',
+    category: 'Mode',
+    requiresRestart: false,
+    default: false,
+    description: 'Enable Vim keybindings',
+    showInDialog: true,
+  },
+  ideMode: {
+    type: 'boolean',
+    label: 'IDE Mode',
+    category: 'Mode',
+    requiresRestart: true,
+    default: false,
+    description: 'Enable IDE integration mode',
+    showInDialog: true,
+  },
+
+  accessibility: {
+    type: 'object',
+    label: 'Accessibility',
+    category: 'Accessibility',
+    requiresRestart: true,
+    default: {},
+    description: 'Accessibility settings.',
+    showInDialog: false,
+    properties: {
+      disableLoadingPhrases: {
+        type: 'boolean',
+        label: 'Disable Loading Phrases',
+        category: 'Accessibility',
+        requiresRestart: true,
+        default: false,
+        description: 'Disable loading phrases for accessibility',
+        showInDialog: true,
+      },
+    },
+  },
+  checkpointing: {
+    type: 'object',
+    label: 'Checkpointing',
+    category: 'Checkpointing',
+    requiresRestart: true,
+    default: {},
+    description: 'Session checkpointing settings.',
+    showInDialog: false,
+    properties: {
+      enabled: {
+        type: 'boolean',
+        label: 'Enable Checkpointing',
+        category: 'Checkpointing',
+        requiresRestart: true,
+        default: false,
+        description: 'Enable session checkpointing for recovery',
+        showInDialog: false,
+      },
+    },
+  },
+  fileFiltering: {
+    type: 'object',
+    label: 'File Filtering',
+    category: 'File Filtering',
+    requiresRestart: true,
+    default: {},
+    description: 'Settings for git-aware file filtering.',
+    showInDialog: false,
+    properties: {
+      respectGitIgnore: {
+        type: 'boolean',
+        label: 'Respect .gitignore',
+        category: 'File Filtering',
+        requiresRestart: true,
+        default: true,
+        description: 'Respect .gitignore files when searching',
+        showInDialog: true,
+      },
+      respectGeminiIgnore: {
+        type: 'boolean',
+        label: 'Respect .geminiignore',
+        category: 'File Filtering',
+        requiresRestart: true,
+        default: true,
+        description: 'Respect .geminiignore files when searching',
+        showInDialog: true,
+      },
+      enableRecursiveFileSearch: {
+        type: 'boolean',
+        label: 'Enable Recursive File Search',
+        category: 'File Filtering',
+        requiresRestart: true,
+        default: true,
+        description: 'Enable recursive file search functionality',
+        showInDialog: true,
+      },
+    },
+  },
+
+  disableAutoUpdate: {
+    type: 'boolean',
+    label: 'Disable Auto Update',
+    category: 'Updates',
+    requiresRestart: false,
+    default: false,
+    description: 'Disable automatic updates',
+    showInDialog: true,
+  },
+
+  selectedAuthType: {
+    type: 'string',
+    label: 'Selected Auth Type',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as AuthType | undefined,
+    description: 'The currently selected authentication type.',
+    showInDialog: false,
+  },
+  useExternalAuth: {
+    type: 'boolean',
+    label: 'Use External Auth',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as boolean | undefined,
+    description: 'Whether to use an external authentication flow.',
+    showInDialog: false,
+  },
+  sandbox: {
+    type: 'object',
+    label: 'Sandbox',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as boolean | string | undefined,
+    description:
+      'Sandbox execution environment (can be a boolean or a path string).',
+    showInDialog: false,
+  },
+  coreTools: {
+    type: 'array',
+    label: 'Core Tools',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as string[] | undefined,
+    description: 'Paths to core tool definitions.',
+    showInDialog: false,
+  },
+  excludeTools: {
+    type: 'array',
+    label: 'Exclude Tools',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as string[] | undefined,
+    description: 'Tool names to exclude from discovery.',
+    showInDialog: false,
+  },
+  toolDiscoveryCommand: {
+    type: 'string',
+    label: 'Tool Discovery Command',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as string | undefined,
+    description: 'Command to run for tool discovery.',
+    showInDialog: false,
+  },
+  toolCallCommand: {
+    type: 'string',
+    label: 'Tool Call Command',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as string | undefined,
+    description: 'Command to run for tool calls.',
+    showInDialog: false,
+  },
+  mcpServerCommand: {
+    type: 'string',
+    label: 'MCP Server Command',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as string | undefined,
+    description: 'Command to start an MCP server.',
+    showInDialog: false,
+  },
+  mcpServers: {
+    type: 'object',
+    label: 'MCP Servers',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: {} as Record<string, MCPServerConfig>,
+    description: 'Configuration for MCP servers.',
+    showInDialog: false,
+  },
+  allowMCPServers: {
+    type: 'array',
+    label: 'Allow MCP Servers',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as string[] | undefined,
+    description: 'A whitelist of MCP servers to allow.',
+    showInDialog: false,
+  },
+  excludeMCPServers: {
+    type: 'array',
+    label: 'Exclude MCP Servers',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as string[] | undefined,
+    description: 'A blacklist of MCP servers to exclude.',
+    showInDialog: false,
+  },
+  telemetry: {
+    type: 'object',
+    label: 'Telemetry',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as TelemetrySettings | undefined,
+    description: 'Telemetry configuration.',
+    showInDialog: false,
+  },
+  bugCommand: {
+    type: 'object',
+    label: 'Bug Command',
+    category: 'Advanced',
+    requiresRestart: false,
+    default: undefined as BugCommandSettings | undefined,
+    description: 'Configuration for the bug report command.',
+    showInDialog: false,
+  },
+  summarizeToolOutput: {
+    type: 'object',
+    label: 'Summarize Tool Output',
+    category: 'Advanced',
+    requiresRestart: false,
+    default: undefined as Record<string, { tokenBudget?: number }> | undefined,
+    description: 'Settings for summarizing tool output.',
+    showInDialog: false,
+  },
+  ideModeFeature: {
+    type: 'boolean',
+    label: 'IDE Mode Feature Flag',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as boolean | undefined,
+    description: 'Internal feature flag for IDE mode.',
+    showInDialog: false,
+  },
+  dnsResolutionOrder: {
+    type: 'string',
+    label: 'DNS Resolution Order',
+    category: 'Advanced',
+    requiresRestart: true,
+    default: undefined as DnsResolutionOrder | undefined,
+    description: 'The DNS resolution order.',
+    showInDialog: false,
+  },
+  excludedProjectEnvVars: {
+    type: 'array',
+    label: 'Excluded Project Environment Variables',
+    category: 'Advanced',
+    requiresRestart: false,
+    default: ['DEBUG', 'DEBUG_MODE'] as string[],
+    description: 'Environment variables to exclude from project context.',
+    showInDialog: false,
+  },
+  disableUpdateNag: {
+    type: 'boolean',
+    label: 'Disable Update Nag',
+    category: 'Updates',
+    requiresRestart: false,
+    default: false,
+    description: 'Disable update notification prompts.',
+    showInDialog: false,
+  },
+  includeDirectories: {
+    type: 'array',
+    label: 'Include Directories',
+    category: 'General',
+    requiresRestart: false,
+    default: [] as string[],
+    description: 'Additional directories to include in the workspace context.',
+    showInDialog: false,
+  },
+  loadMemoryFromIncludeDirectories: {
+    type: 'boolean',
+    label: 'Load Memory From Include Directories',
+    category: 'General',
+    requiresRestart: false,
+    default: false,
+    description: 'Whether to load memory files from include directories.',
+    showInDialog: true,
+  },
+  model: {
+    type: 'string',
+    label: 'Model',
+    category: 'General',
+    requiresRestart: false,
+    default: undefined as string | undefined,
+    description: 'The Gemini model to use for conversations.',
+    showInDialog: false,
+  },
+  hasSeenIdeIntegrationNudge: {
+    type: 'boolean',
+    label: 'Has Seen IDE Integration Nudge',
+    category: 'General',
+    requiresRestart: false,
+    default: false,
+    description: 'Whether the user has seen the IDE integration nudge.',
+    showInDialog: false,
+  },
+  folderTrustFeature: {
+    type: 'boolean',
+    label: 'Folder Trust Feature',
+    category: 'General',
+    requiresRestart: false,
+    default: false,
+    description: 'Enable folder trust feature for enhanced security.',
+    showInDialog: true,
+  },
+  folderTrust: {
+    type: 'boolean',
+    label: 'Folder Trust',
+    category: 'General',
+    requiresRestart: false,
+    default: false,
+    description: 'Setting to track whether Folder trust is enabled.',
+    showInDialog: true,
+  },
+  chatCompression: {
+    type: 'object',
+    label: 'Chat Compression',
+    category: 'General',
+    requiresRestart: false,
+    default: undefined as ChatCompressionSettings | undefined,
+    description: 'Chat compression settings.',
+    showInDialog: false,
+  },
+  showLineNumbers: {
+    type: 'boolean',
+    label: 'Show Line Numbers',
+    category: 'General',
+    requiresRestart: false,
+    default: false,
+    description: 'Show line numbers in the chat.',
+    showInDialog: true,
+  },
+} as const;
+
+type InferSettings<T extends SettingsSchema> = {
+  -readonly [K in keyof T]?: T[K] extends { properties: SettingsSchema }
+    ? InferSettings<T[K]['properties']>
+    : T[K]['default'] extends boolean
+      ? boolean
+      : T[K]['default'];
+};
+
+export type Settings = InferSettings<typeof SETTINGS_SCHEMA>;