feat: add Gemini CLI provider integration (#647)

* feat: add Gemini CLI provider for AI model execution

- Add GeminiProvider class extending CliProvider for Gemini CLI integration
- Add Gemini models (Gemini 3 Pro/Flash Preview, 2.5 Pro/Flash/Flash-Lite)
- Add gemini-models.ts with model definitions and types
- Update ModelProvider type to include 'gemini'
- Add isGeminiModel() to provider-utils.ts for model detection
- Register Gemini provider in provider-factory with priority 4
- Add Gemini setup detection routes (status, auth, deauth)
- Add GeminiCliStatus to setup store for UI state management
- Add Gemini to PROVIDER_ICON_COMPONENTS for UI icon display
- Add GEMINI_MODELS to model-display for dropdown population
- Support thinking levels: off, low, medium, high

Based on https://github.com/google-gemini/gemini-cli

* chore: update package-lock.json

* feat(ui): add Gemini provider to settings and setup wizard

- Add GeminiCliStatus component for CLI detection display
- Add GeminiSettingsTab component for global settings
- Update provider-tabs.tsx to include Gemini as 5th tab
- Update providers-setup-step.tsx with Gemini provider detection
- Add useGeminiCliStatus hook for querying CLI status
- Add getGeminiStatus, authGemini, deauthGemini to HTTP API client
- Add gemini query key for React Query
- Fix GeminiModelId type to not double-prefix model IDs

* feat(ui): add Gemini to settings sidebar navigation

- Add 'gemini-provider' to SettingsViewId type
- Add GeminiIcon and gemini-provider to navigation config
- Add gemini-provider to NAV_ID_TO_PROVIDER mapping
- Add gemini-provider case in settings-view switch
- Export GeminiSettingsTab from providers index

This fixes the missing Gemini entry in the AI Providers sidebar menu.

* feat(ui): add Gemini model configuration in settings

- Create GeminiModelConfiguration component for model selection
- Add enabledGeminiModels and geminiDefaultModel state to app-store
- Add setEnabledGeminiModels, setGeminiDefaultModel, toggleGeminiModel actions
- Update GeminiSettingsTab to show model configuration when CLI is installed
- Import GeminiModelId and getAllGeminiModelIds from types

This adds the ability to configure which Gemini models are available
in the feature modal, similar to other providers like Codex and OpenCode.

* feat(ui): add Gemini models to all model dropdowns

- Add GEMINI_MODELS to model-constants.ts for UI dropdowns
- Add Gemini to ALL_MODELS array used throughout the app
- Add GeminiIcon to PROFILE_ICONS mapping
- Fix GEMINI_MODELS in model-display.ts to use correct model IDs
- Update getModelDisplayName to handle Gemini models correctly

Gemini models now appear in all model selection dropdowns including
Model Defaults, Feature Defaults, and feature card settings.

* fix(gemini): fix CLI integration and event handling

- Fix model ID prefix handling: strip gemini- prefix in agent-service,
  add it back in buildCliArgs for CLI invocation
- Fix event normalization to match actual Gemini CLI output format:
  - type: 'init' (not 'system')
  - type: 'message' with role (not 'assistant')
  - tool_name/tool_id/parameters/output field names
- Add --sandbox false and --approval-mode yolo for faster execution
- Remove thinking level selector from UI (Gemini CLI doesn't support it)
- Update auth status to show errors properly

* test: update provider-factory tests for Gemini provider

- Add GeminiProvider import and spy mock
- Update expected provider count from 4 to 5
- Add test for GeminiProvider inclusion
- Add gemini key to checkAllProviders test

* fix(gemini): address PR review feedback

- Fix npm package name from @anthropic-ai/gemini-cli to @google/gemini-cli
- Fix comments in gemini-provider.ts to match actual CLI output format
- Convert sync fs operations to async using fs/promises

* fix(settings): add Gemini and Codex settings to sync

Add enabledGeminiModels, geminiDefaultModel, enabledCodexModels, and
codexDefaultModel to SETTINGS_FIELDS_TO_SYNC for persistence across sessions.

* fix(gemini): address additional PR review feedback

- Use 'Speed' badge for non-thinking Gemini models (consistency)
- Fix installCommand mapping in gemini-settings-tab.tsx
- Add hasEnvApiKey to GeminiCliStatus interface for API parity
- Clarify GeminiThinkingLevel comment (CLI doesn't support --thinking-level)

* fix(settings): restore Codex and Gemini settings from server

Add sanitization and restoration logic for enabledCodexModels,
codexDefaultModel, enabledGeminiModels, and geminiDefaultModel
in refreshSettingsFromServer() to match the fields in SETTINGS_FIELDS_TO_SYNC.

* feat(gemini): normalize tool names and fix workspace restrictions

- Add tool name mapping to normalize Gemini CLI tool names to standard
  names (e.g., write_todos -> TodoWrite, read_file -> Read)
- Add normalizeGeminiToolInput to convert write_todos format to TodoWrite
  format (description -> content, handle cancelled status)
- Pass --include-directories with cwd to fix workspace restriction errors
  when Gemini CLI has a different cached workspace from previous sessions

---------

Co-authored-by: Claude <noreply@anthropic.com>

apps/ui/src/store/app-store.ts

@@ -21,6 +21,7 @@ import type {
   CursorModelId,
   CodexModelId,
   OpencodeModelId,
+  GeminiModelId,
   PhaseModelConfig,
   PhaseModelKey,
   PhaseModelEntry,
@@ -39,8 +40,10 @@ import {
   getAllCursorModelIds,
   getAllCodexModelIds,
   getAllOpencodeModelIds,
+  getAllGeminiModelIds,
   DEFAULT_PHASE_MODELS,
   DEFAULT_OPENCODE_MODEL,
+  DEFAULT_GEMINI_MODEL,
   DEFAULT_MAX_CONCURRENCY,
   DEFAULT_GLOBAL_SETTINGS,
 } from '@automaker/types';
@@ -729,6 +732,10 @@ export interface AppState {
   opencodeModelsLastFetched: number | null; // Timestamp of last successful fetch
   opencodeModelsLastFailedAt: number | null; // Timestamp of last failed fetch
 
+  // Gemini CLI Settings (global)
+  enabledGeminiModels: GeminiModelId[]; // Which Gemini models are available in feature modal
+  geminiDefaultModel: GeminiModelId; // Default Gemini model selection
+
   // Provider Visibility Settings
   disabledProviders: ModelProvider[]; // Providers that are disabled and hidden from dropdowns
 
@@ -1218,6 +1225,11 @@ export interface AppActions {
     providers: Array<{ id: string; name: string; authenticated: boolean; authMethod?: string }>
   ) => void;
 
+  // Gemini CLI Settings actions
+  setEnabledGeminiModels: (models: GeminiModelId[]) => void;
+  setGeminiDefaultModel: (model: GeminiModelId) => void;
+  toggleGeminiModel: (model: GeminiModelId, enabled: boolean) => void;
+
   // Provider Visibility Settings actions
   setDisabledProviders: (providers: ModelProvider[]) => void;
   toggleProviderDisabled: (provider: ModelProvider, disabled: boolean) => void;
@@ -1503,6 +1515,8 @@ const initialState: AppState = {
   opencodeModelsError: null,
   opencodeModelsLastFetched: null,
   opencodeModelsLastFailedAt: null,
+  enabledGeminiModels: getAllGeminiModelIds(), // All Gemini models enabled by default
+  geminiDefaultModel: DEFAULT_GEMINI_MODEL, // Default to Gemini 2.5 Flash
   disabledProviders: [], // No providers disabled by default
   autoLoadClaudeMd: false, // Default to disabled (user must opt-in)
   skipSandboxWarning: false, // Default to disabled (show sandbox warning dialog)
@@ -2735,6 +2749,16 @@ export const useAppStore = create<AppState & AppActions>()((set, get) => ({
       ),
     }),
 
+  // Gemini CLI Settings actions
+  setEnabledGeminiModels: (models) => set({ enabledGeminiModels: models }),
+  setGeminiDefaultModel: (model) => set({ geminiDefaultModel: model }),
+  toggleGeminiModel: (model, enabled) =>
+    set((state) => ({
+      enabledGeminiModels: enabled
+        ? [...state.enabledGeminiModels, model]
+        : state.enabledGeminiModels.filter((m) => m !== model),
+    })),
+
   // Provider Visibility Settings actions
   setDisabledProviders: (providers) => set({ disabledProviders: providers }),
   toggleProviderDisabled: (provider, disabled) =>

apps/ui/src/store/setup-store.ts

@@ -63,6 +63,22 @@ export interface OpencodeCliStatus {
   error?: string;
 }
 
+// Gemini CLI Status
+export interface GeminiCliStatus {
+  installed: boolean;
+  version?: string | null;
+  path?: string | null;
+  auth?: {
+    authenticated: boolean;
+    method: string;
+    hasApiKey?: boolean;
+    hasEnvApiKey?: boolean;
+  };
+  installCommand?: string;
+  loginCommand?: string;
+  error?: string;
+}
+
 // Codex Auth Method
 export type CodexAuthMethod =
   | 'api_key_env' // OPENAI_API_KEY environment variable
@@ -120,6 +136,7 @@ export type SetupStep =
   | 'cursor'
   | 'codex'
   | 'opencode'
+  | 'gemini'
   | 'github'
   | 'complete';
 
@@ -149,6 +166,9 @@ export interface SetupState {
   // OpenCode CLI state
   opencodeCliStatus: OpencodeCliStatus | null;
 
+  // Gemini CLI state
+  geminiCliStatus: GeminiCliStatus | null;
+
   // Setup preferences
   skipClaudeSetup: boolean;
 }
@@ -183,6 +203,9 @@ export interface SetupActions {
   // OpenCode CLI
   setOpencodeCliStatus: (status: OpencodeCliStatus | null) => void;
 
+  // Gemini CLI
+  setGeminiCliStatus: (status: GeminiCliStatus | null) => void;
+
   // Preferences
   setSkipClaudeSetup: (skip: boolean) => void;
 }
@@ -216,6 +239,8 @@ const initialState: SetupState = {
 
   opencodeCliStatus: null,
 
+  geminiCliStatus: null,
+
   skipClaudeSetup: shouldSkipSetup,
 };
 
@@ -288,6 +313,9 @@ export const useSetupStore = create<SetupState & SetupActions>()((set, get) => (
   // OpenCode CLI
   setOpencodeCliStatus: (status) => set({ opencodeCliStatus: status }),
 
+  // Gemini CLI
+  setGeminiCliStatus: (status) => set({ geminiCliStatus: status }),
+
   // Preferences
   setSkipClaudeSetup: (skip) => set({ skipClaudeSetup: skip }),
 }));