Is Cursor safe to use with Redux

1---
2description: Redux Toolkit conventions
3globs: "src/store/**/*.ts,src/store/**/*.tsx"
4alwaysApply: true
5---
6
7## Redux Rules
8- ALWAYS use @reduxjs/toolkit createSlice, NOT manual action creators
9- ALWAYS use createAsyncThunk for async operations, NEVER dispatch in useEffect
10- Slice files go in src/store/slices/ with the pattern {feature}Slice.ts
11- Export actions and reducer from each slice file
12- Use the existing RootState and AppDispatch types from src/store/index.ts
13- NEVER create a new store — only add slices to the existing one
14- Use Immer (built into RTK) for state mutations in reducers
15- Name async thunks as '{slice}/{action}' e.g. 'users/fetchAll'

1// Open src/store/slices/userSlice.ts, select the reducers block,
2// then press Cmd+K and type:
3// "Add a 'setUserPreferences' reducer that accepts a
4// payload of { theme: string; language: string } and
5// merges it into the existing user state. Follow the
6// same pattern as the other reducers in this file."
7
8// Cursor generates:
9setUserPreferences: (state, action: PayloadAction<{
10  theme: string;
11  language: string;
12}>) => {
13  state.preferences = {
14    ...state.preferences,
15    ...action.payload,
16  };
17},

1// Cursor Chat prompt (Cmd+L):
2// @src/store/slices/userSlice.ts @src/store/index.ts
3// Create a createAsyncThunk called 'users/updateProfile'
4// that takes { name: string, email: string }, calls
5// PUT /api/users/profile, and updates the user slice
6// state. Add the extraReducers cases to the existing
7// userSlice. Use our AppDispatch and RootState types.
8
9// Expected output includes:
10export const updateProfile = createAsyncThunk<
11  User,
12  { name: string; email: string },
13  { state: RootState }
14>('users/updateProfile', async (data, { rejectWithValue }) => {
15  try {
16    const response = await fetch('/api/users/profile', {
17      method: 'PUT',
18      headers: { 'Content-Type': 'application/json' },
19      body: JSON.stringify(data),
20    });
21    if (!response.ok) throw new Error('Update failed');
22    return response.json();
23  } catch (err) {
24    return rejectWithValue(err.message);
25  }
26});

1// Open src/store/index.ts, select the combineReducers
2// or configureStore block, press Cmd+K:
3// "Add the new orderSlice reducer from
4// @src/store/slices/orderSlice.ts to the existing store.
5// Do not modify any existing reducers."
6
7// Cursor adds:
8import orderReducer from './slices/orderSlice';
9
10// And inserts into the reducer map:
11const store = configureStore({
12  reducer: {
13    users: userReducer,
14    products: productReducer,
15    orders: orderReducer,  // <-- new line only
16  },
17});

1// After Cursor generates changes, check:
2// 1. No existing reducers were modified (look for red lines in diff)
3// 2. Initial state shape is preserved
4// 3. Action type strings are unique (no duplicates)
5// 4. Imports do not conflict with existing imports
6// 5. TypeScript types are correct
7
8// If something went wrong, use the checkpoint:
9// Click the restore icon in the Composer panel to revert
10// all changes from the last operation