fix(copilot): options render inside thinking

.claude/rules/emcn-components.md

@@ -0,0 +1,35 @@
+---
+paths:
+  - "apps/sim/components/emcn/**"
+---
+
+# EMCN Components
+
+Import from `@/components/emcn`, never from subpaths (except CSS files).
+
+## CVA vs Direct Styles
+
+**Use CVA when:** 2+ variants (primary/secondary, sm/md/lg)
+
+```tsx
+const buttonVariants = cva('base-classes', {
+  variants: { variant: { default: '...', primary: '...' } }
+})
+export { Button, buttonVariants }
+```
+
+**Use direct className when:** Single consistent style, no variations
+
+```tsx
+function Label({ className, ...props }) {
+  return <Primitive className={cn('style-classes', className)} {...props} />
+}
+```
+
+## Rules
+
+- Use Radix UI primitives for accessibility
+- Export component and variants (if using CVA)
+- TSDoc with usage examples
+- Consistent tokens: `font-medium`, `text-[12px]`, `rounded-[4px]`
+- `transition-colors` for hover states

.claude/rules/global.md

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+# Global Standards
+
+## Logging
+Import `createLogger` from `sim/logger`. Use `logger.info`, `logger.warn`, `logger.error` instead of `console.log`.
+
+## Comments
+Use TSDoc for documentation. No `====` separators. No non-TSDoc comments.
+
+## Styling
+Never update global styles. Keep all styling local to components.
+
+## Package Manager
+Use `bun` and `bunx`, not `npm` and `npx`.

.claude/rules/sim-architecture.md

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+---
+paths:
+  - "apps/sim/**"
+---
+
+# Sim App Architecture
+
+## Core Principles
+1. **Single Responsibility**: Each component, hook, store has one clear purpose
+2. **Composition Over Complexity**: Break down complex logic into smaller pieces
+3. **Type Safety First**: TypeScript interfaces for all props, state, return types
+4. **Predictable State**: Zustand for global state, useState for UI-only concerns
+
+## Root-Level Structure
+
+```
+apps/sim/
+├── app/                 # Next.js app router (pages, API routes)
+├── blocks/              # Block definitions and registry
+├── components/          # Shared UI (emcn/, ui/)
+├── executor/            # Workflow execution engine
+├── hooks/               # Shared hooks (queries/, selectors/)
+├── lib/                 # App-wide utilities
+├── providers/           # LLM provider integrations
+├── stores/              # Zustand stores
+├── tools/               # Tool definitions
+└── triggers/            # Trigger definitions
+```
+
+## Feature Organization
+
+Features live under `app/workspace/[workspaceId]/`:
+
+```
+feature/
+├── components/          # Feature components
+├── hooks/               # Feature-scoped hooks
+├── utils/               # Feature-scoped utilities (2+ consumers)
+├── feature.tsx          # Main component
+└── page.tsx             # Next.js page entry
+```
+
+## Naming Conventions
+- **Components**: PascalCase (`WorkflowList`)
+- **Hooks**: `use` prefix (`useWorkflowOperations`)
+- **Files**: kebab-case (`workflow-list.tsx`)
+- **Stores**: `stores/feature/store.ts`
+- **Constants**: SCREAMING_SNAKE_CASE
+- **Interfaces**: PascalCase with suffix (`WorkflowListProps`)
+
+## Utils Rules
+
+- **Never create `utils.ts` for single consumer** - inline it
+- **Create `utils.ts` when** 2+ files need the same helper
+- **Check existing sources** before duplicating (`lib/` has many utilities)
+- **Location**: `lib/` (app-wide) → `feature/utils/` (feature-scoped) → inline (single-use)

.claude/rules/sim-components.md

@@ -0,0 +1,48 @@
+---
+paths:
+  - "apps/sim/**/*.tsx"
+---
+
+# Component Patterns
+
+## Structure Order
+
+```typescript
+'use client' // Only if using hooks
+
+// Imports (external → internal)
+// Constants at module level
+const CONFIG = { SPACING: 8 } as const
+
+// Props interface
+interface ComponentProps {
+  requiredProp: string
+  optionalProp?: boolean
+}
+
+export function Component({ requiredProp, optionalProp = false }: ComponentProps) {
+  // a. Refs
+  // b. External hooks (useParams, useRouter)
+  // c. Store hooks
+  // d. Custom hooks
+  // e. Local state
+  // f. useMemo
+  // g. useCallback
+  // h. useEffect
+  // i. Return JSX
+}
+```
+
+## Rules
+
+1. `'use client'` only when using React hooks
+2. Always define props interface
+3. Extract constants with `as const`
+4. Semantic HTML (`aside`, `nav`, `article`)
+5. Optional chain callbacks: `onAction?.(id)`
+
+## Component Extraction
+
+**Extract when:** 50+ lines, used in 2+ files, or has own state/logic
+
+**Keep inline when:** < 10 lines, single use, purely presentational

.claude/rules/sim-hooks.md

@@ -0,0 +1,55 @@
+---
+paths:
+  - "apps/sim/**/use-*.ts"
+  - "apps/sim/**/hooks/**/*.ts"
+---
+
+# Hook Patterns
+
+## Structure
+
+```typescript
+interface UseFeatureProps {
+  id: string
+  onSuccess?: (result: Result) => void
+}
+
+export function useFeature({ id, onSuccess }: UseFeatureProps) {
+  // 1. Refs for stable dependencies
+  const idRef = useRef(id)
+  const onSuccessRef = useRef(onSuccess)
+
+  // 2. State
+  const [data, setData] = useState<Data | null>(null)
+  const [isLoading, setIsLoading] = useState(false)
+
+  // 3. Sync refs
+  useEffect(() => {
+    idRef.current = id
+    onSuccessRef.current = onSuccess
+  }, [id, onSuccess])
+
+  // 4. Operations (useCallback with empty deps when using refs)
+  const fetchData = useCallback(async () => {
+    setIsLoading(true)
+    try {
+      const result = await fetch(`/api/${idRef.current}`).then(r => r.json())
+      setData(result)
+      onSuccessRef.current?.(result)
+    } finally {
+      setIsLoading(false)
+    }
+  }, [])
+
+  return { data, isLoading, fetchData }
+}
+```
+
+## Rules
+
+1. Single responsibility per hook
+2. Props interface required
+3. Refs for stable callback dependencies
+4. Wrap returned functions in useCallback
+5. Always try/catch async operations
+6. Track loading/error states

.claude/rules/sim-imports.md

@@ -0,0 +1,62 @@
+---
+paths:
+  - "apps/sim/**/*.ts"
+  - "apps/sim/**/*.tsx"
+---
+
+# Import Patterns
+
+## Absolute Imports
+
+**Always use absolute imports.** Never use relative imports.
+
+```typescript
+// ✓ Good
+import { useWorkflowStore } from '@/stores/workflows/store'
+import { Button } from '@/components/ui/button'
+
+// ✗ Bad
+import { useWorkflowStore } from '../../../stores/workflows/store'
+```
+
+## Barrel Exports
+
+Use barrel exports (`index.ts`) when a folder has 3+ exports. Import from barrel, not individual files.
+
+```typescript
+// ✓ Good
+import { Dashboard, Sidebar } from '@/app/workspace/[workspaceId]/logs/components'
+
+// ✗ Bad
+import { Dashboard } from '@/app/workspace/[workspaceId]/logs/components/dashboard/dashboard'
+```
+
+## No Re-exports
+
+Do not re-export from non-barrel files. Import directly from the source.
+
+```typescript
+// ✓ Good - import from where it's declared
+import { CORE_TRIGGER_TYPES } from '@/stores/logs/filters/types'
+
+// ✗ Bad - re-exporting in utils.ts then importing from there
+import { CORE_TRIGGER_TYPES } from '@/app/workspace/.../utils'
+```
+
+## Import Order
+
+1. React/core libraries
+2. External libraries
+3. UI components (`@/components/emcn`, `@/components/ui`)
+4. Utilities (`@/lib/...`)
+5. Stores (`@/stores/...`)
+6. Feature imports
+7. CSS imports
+
+## Type Imports
+
+Use `type` keyword for type-only imports:
+
+```typescript
+import type { WorkflowLog } from '@/stores/logs/types'
+```

.claude/rules/sim-integrations.md

@@ -0,0 +1,209 @@
+---
+paths:
+  - "apps/sim/tools/**"
+  - "apps/sim/blocks/**"
+  - "apps/sim/triggers/**"
+---
+
+# Adding Integrations
+
+## Overview
+
+Adding a new integration typically requires:
+1. **Tools** - API operations (`tools/{service}/`)
+2. **Block** - UI component (`blocks/blocks/{service}.ts`)
+3. **Icon** - SVG icon (`components/icons.tsx`)
+4. **Trigger** (optional) - Webhooks/polling (`triggers/{service}/`)
+
+Always look up the service's API docs first.
+
+## 1. Tools (`tools/{service}/`)
+
+```
+tools/{service}/
+├── index.ts           # Export all tools
+├── types.ts           # Params/response types
+├── {action}.ts        # Individual tool (e.g., send_message.ts)
+└── ...
+```
+
+**Tool file structure:**
+
+```typescript
+// tools/{service}/{action}.ts
+import type { {Service}Params, {Service}Response } from '@/tools/{service}/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const {service}{Action}Tool: ToolConfig<{Service}Params, {Service}Response> = {
+  id: '{service}_{action}',
+  name: '{Service} {Action}',
+  description: 'What this tool does',
+  version: '1.0.0',
+  oauth: { required: true, provider: '{service}' }, // if OAuth
+  params: { /* param definitions */ },
+  request: {
+    url: '/api/tools/{service}/{action}',
+    method: 'POST',
+    headers: () => ({ 'Content-Type': 'application/json' }),
+    body: (params) => ({ ...params }),
+  },
+  transformResponse: async (response) => {
+    const data = await response.json()
+    if (!data.success) throw new Error(data.error)
+    return { success: true, output: data.output }
+  },
+  outputs: { /* output definitions */ },
+}
+```
+
+**Register in `tools/registry.ts`:**
+
+```typescript
+import { {service}{Action}Tool } from '@/tools/{service}'
+// Add to registry object
+{service}_{action}: {service}{Action}Tool,
+```
+
+## 2. Block (`blocks/blocks/{service}.ts`)
+
+```typescript
+import { {Service}Icon } from '@/components/icons'
+import type { BlockConfig } from '@/blocks/types'
+import type { {Service}Response } from '@/tools/{service}/types'
+
+export const {Service}Block: BlockConfig<{Service}Response> = {
+  type: '{service}',
+  name: '{Service}',
+  description: 'Short description',
+  longDescription: 'Detailed description',
+  category: 'tools',
+  bgColor: '#hexcolor',
+  icon: {Service}Icon,
+  subBlocks: [ /* see SubBlock Properties below */ ],
+  tools: {
+    access: ['{service}_{action}', ...],
+    config: {
+      tool: (params) => `{service}_${params.operation}`,
+      params: (params) => ({ ...params }),
+    },
+  },
+  inputs: { /* input definitions */ },
+  outputs: { /* output definitions */ },
+}
+```
+
+### SubBlock Properties
+
+```typescript
+{
+  id: 'fieldName',           // Unique identifier
+  title: 'Field Label',      // UI label
+  type: 'short-input',       // See SubBlock Types below
+  placeholder: 'Hint text',
+  required: true,            // See Required below
+  condition: { ... },        // See Condition below
+  dependsOn: ['otherField'], // See DependsOn below
+  mode: 'basic',             // 'basic' | 'advanced' | 'both' | 'trigger'
+}
+```
+
+**SubBlock Types:** `short-input`, `long-input`, `dropdown`, `code`, `switch`, `slider`, `oauth-input`, `channel-selector`, `user-selector`, `file-upload`, etc.
+
+### `condition` - Show/hide based on another field
+
+```typescript
+// Show when operation === 'send'
+condition: { field: 'operation', value: 'send' }
+
+// Show when operation is 'send' OR 'read'
+condition: { field: 'operation', value: ['send', 'read'] }
+
+// Show when operation !== 'send'
+condition: { field: 'operation', value: 'send', not: true }
+
+// Complex: NOT in list AND another condition
+condition: {
+  field: 'operation',
+  value: ['list_channels', 'list_users'],
+  not: true,
+  and: { field: 'destinationType', value: 'dm', not: true }
+}
+```
+
+### `required` - Field validation
+
+```typescript
+// Always required
+required: true
+
+// Conditionally required (same syntax as condition)
+required: { field: 'operation', value: 'send' }
+```
+
+### `dependsOn` - Clear field when dependencies change
+
+```typescript
+// Clear when credential changes
+dependsOn: ['credential']
+
+// Clear when authMethod changes AND (credential OR botToken) changes
+dependsOn: { all: ['authMethod'], any: ['credential', 'botToken'] }
+```
+
+### `mode` - When to show field
+
+- `'basic'` - Only in basic mode (default UI)
+- `'advanced'` - Only in advanced mode (manual input)
+- `'both'` - Show in both modes (default)
+- `'trigger'` - Only when block is used as trigger
+
+**Register in `blocks/registry.ts`:**
+
+```typescript
+import { {Service}Block } from '@/blocks/blocks/{service}'
+// Add to registry object (alphabetically)
+{service}: {Service}Block,
+```
+
+## 3. Icon (`components/icons.tsx`)
+
+```typescript
+export function {Service}Icon(props: SVGProps<SVGSVGElement>) {
+  return (
+    <svg {...props} viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
+      {/* SVG path from service's brand assets */}
+    </svg>
+  )
+}
+```
+
+## 4. Trigger (`triggers/{service}/`) - Optional
+
+```
+triggers/{service}/
+├── index.ts           # Export all triggers
+├── webhook.ts         # Webhook handler
+├── utils.ts           # Shared utilities
+└── {event}.ts         # Specific event handlers
+```
+
+**Register in `triggers/registry.ts`:**
+
+```typescript
+import { {service}WebhookTrigger } from '@/triggers/{service}'
+// Add to TRIGGER_REGISTRY
+{service}_webhook: {service}WebhookTrigger,
+```
+
+## Checklist
+
+- [ ] Look up API docs for the service
+- [ ] Create `tools/{service}/types.ts` with proper types
+- [ ] Create tool files for each operation
+- [ ] Create `tools/{service}/index.ts` barrel export
+- [ ] Register tools in `tools/registry.ts`
+- [ ] Add icon to `components/icons.tsx`
+- [ ] Create block in `blocks/blocks/{service}.ts`
+- [ ] Register block in `blocks/registry.ts`
+- [ ] (Optional) Create triggers in `triggers/{service}/`
+- [ ] (Optional) Register triggers in `triggers/registry.ts`

.claude/rules/sim-queries.md

@@ -0,0 +1,66 @@
+---
+paths:
+  - "apps/sim/hooks/queries/**/*.ts"
+---
+
+# React Query Patterns
+
+All React Query hooks live in `hooks/queries/`.
+
+## Query Key Factory
+
+Every query file defines a keys factory:
+
+```typescript
+export const entityKeys = {
+  all: ['entity'] as const,
+  list: (workspaceId?: string) => [...entityKeys.all, 'list', workspaceId ?? ''] as const,
+  detail: (id?: string) => [...entityKeys.all, 'detail', id ?? ''] as const,
+}
+```
+
+## File Structure
+
+```typescript
+// 1. Query keys factory
+// 2. Types (if needed)
+// 3. Private fetch functions
+// 4. Exported hooks
+```
+
+## Query Hook
+
+```typescript
+export function useEntityList(workspaceId?: string, options?: { enabled?: boolean }) {
+  return useQuery({
+    queryKey: entityKeys.list(workspaceId),
+    queryFn: () => fetchEntities(workspaceId as string),
+    enabled: Boolean(workspaceId) && (options?.enabled ?? true),
+    staleTime: 60 * 1000,
+    placeholderData: keepPreviousData,
+  })
+}
+```
+
+## Mutation Hook
+
+```typescript
+export function useCreateEntity() {
+  const queryClient = useQueryClient()
+  return useMutation({
+    mutationFn: async (variables) => { /* fetch POST */ },
+    onSuccess: () => queryClient.invalidateQueries({ queryKey: entityKeys.all }),
+  })
+}
+```
+
+## Optimistic Updates
+
+For optimistic mutations syncing with Zustand, use `createOptimisticMutationHandlers` from `@/hooks/queries/utils/optimistic-mutation`.
+
+## Naming
+
+- **Keys**: `entityKeys`
+- **Query hooks**: `useEntity`, `useEntityList`
+- **Mutation hooks**: `useCreateEntity`, `useUpdateEntity`
+- **Fetch functions**: `fetchEntity` (private)

.claude/rules/sim-stores.md

@@ -0,0 +1,71 @@
+---
+paths:
+  - "apps/sim/**/store.ts"
+  - "apps/sim/**/stores/**/*.ts"
+---
+
+# Zustand Store Patterns
+
+Stores live in `stores/`. Complex stores split into `store.ts` + `types.ts`.
+
+## Basic Store
+
+```typescript
+import { create } from 'zustand'
+import { devtools } from 'zustand/middleware'
+import type { FeatureState } from '@/stores/feature/types'
+
+const initialState = { items: [] as Item[], activeId: null as string | null }
+
+export const useFeatureStore = create<FeatureState>()(
+  devtools(
+    (set, get) => ({
+      ...initialState,
+      setItems: (items) => set({ items }),
+      addItem: (item) => set((state) => ({ items: [...state.items, item] })),
+      reset: () => set(initialState),
+    }),
+    { name: 'feature-store' }
+  )
+)
+```
+
+## Persisted Store
+
+```typescript
+import { create } from 'zustand'
+import { persist } from 'zustand/middleware'
+
+export const useFeatureStore = create<FeatureState>()(
+  persist(
+    (set) => ({
+      width: 300,
+      setWidth: (width) => set({ width }),
+      _hasHydrated: false,
+      setHasHydrated: (v) => set({ _hasHydrated: v }),
+    }),
+    {
+      name: 'feature-state',
+      partialize: (state) => ({ width: state.width }),
+      onRehydrateStorage: () => (state) => state?.setHasHydrated(true),
+    }
+  )
+)
+```
+
+## Rules
+
+1. Use `devtools` middleware (named stores)
+2. Use `persist` only when data should survive reload
+3. `partialize` to persist only necessary state
+4. `_hasHydrated` pattern for persisted stores needing hydration tracking
+5. Immutable updates only
+6. `set((state) => ...)` when depending on previous state
+7. Provide `reset()` action
+
+## Outside React
+
+```typescript
+const items = useFeatureStore.getState().items
+useFeatureStore.setState({ items: newItems })
+```

.claude/rules/sim-styling.md

@@ -0,0 +1,41 @@
+---
+paths:
+  - "apps/sim/**/*.tsx"
+  - "apps/sim/**/*.css"
+---
+
+# Styling Rules
+
+## Tailwind
+
+1. **No inline styles** - Use Tailwind classes
+2. **No duplicate dark classes** - Skip `dark:` when value matches light mode
+3. **Exact values** - `text-[14px]`, `h-[26px]`
+4. **Transitions** - `transition-colors` for interactive states
+
+## Conditional Classes
+
+```typescript
+import { cn } from '@/lib/utils'
+
+<div className={cn(
+  'base-classes',
+  isActive && 'active-classes',
+  disabled ? 'opacity-60' : 'hover:bg-accent'
+)} />
+```
+
+## CSS Variables
+
+For dynamic values (widths, heights) synced with stores:
+
+```typescript
+// In store
+setWidth: (width) => {
+  set({ width })
+  document.documentElement.style.setProperty('--sidebar-width', `${width}px`)
+}
+
+// In component
+<aside style={{ width: 'var(--sidebar-width)' }} />
+```

.claude/rules/sim-testing.md

@@ -0,0 +1,58 @@
+---
+paths:
+  - "apps/sim/**/*.test.ts"
+  - "apps/sim/**/*.test.tsx"
+---
+
+# Testing Patterns
+
+Use Vitest. Test files: `feature.ts` → `feature.test.ts`
+
+## Structure
+
+```typescript
+/**
+ * @vitest-environment node
+ */
+import { databaseMock, loggerMock } from '@sim/testing'
+import { describe, expect, it, vi } from 'vitest'
+
+vi.mock('@sim/db', () => databaseMock)
+vi.mock('@sim/logger', () => loggerMock)
+
+import { myFunction } from '@/lib/feature'
+
+describe('myFunction', () => {
+  beforeEach(() => vi.clearAllMocks())
+  it.concurrent('isolated tests run in parallel', () => { ... })
+})
+```
+
+## @sim/testing Package
+
+Always prefer over local mocks.
+
+| Category | Utilities |
+|----------|-----------|
+| **Mocks** | `loggerMock`, `databaseMock`, `setupGlobalFetchMock()` |
+| **Factories** | `createSession()`, `createWorkflowRecord()`, `createBlock()`, `createExecutorContext()` |
+| **Builders** | `WorkflowBuilder`, `ExecutionContextBuilder` |
+| **Assertions** | `expectWorkflowAccessGranted()`, `expectBlockExecuted()` |
+
+## Rules
+
+1. `@vitest-environment node` directive at file top
+2. `vi.mock()` calls before importing mocked modules
+3. `@sim/testing` utilities over local mocks
+4. `it.concurrent` for isolated tests (no shared mutable state)
+5. `beforeEach(() => vi.clearAllMocks())` to reset state
+
+## Hoisted Mocks
+
+For mutable mock references:
+
+```typescript
+const mockFn = vi.hoisted(() => vi.fn())
+vi.mock('@/lib/module', () => ({ myFunction: mockFn }))
+mockFn.mockResolvedValue({ data: 'test' })
+```

.claude/rules/sim-typescript.md

@@ -0,0 +1,21 @@
+---
+paths:
+  - "apps/sim/**/*.ts"
+  - "apps/sim/**/*.tsx"
+---
+
+# TypeScript Rules
+
+1. **No `any`** - Use proper types or `unknown` with type guards
+2. **Props interface** - Always define for components
+3. **Const assertions** - `as const` for constant objects/arrays
+4. **Ref types** - Explicit: `useRef<HTMLDivElement>(null)`
+5. **Type imports** - `import type { X }` for type-only imports
+
+```typescript
+// ✗ Bad
+const handleClick = (e: any) => {}
+
+// ✓ Good
+const handleClick = (e: React.MouseEvent<HTMLButtonElement>) => {}
+```

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/chat-history-skeleton/chat-history-skeleton.tsx

@@ -0,0 +1,22 @@
+import { PopoverSection } from '@/components/emcn'
+
+/**
+ * Skeleton loading component for chat history dropdown
+ * Displays placeholder content while chats are being loaded
+ */
+export function ChatHistorySkeleton() {
+  return (
+    <>
+      <PopoverSection>
+        <div className='h-3 w-12 animate-pulse rounded bg-muted/40' />
+      </PopoverSection>
+      <div className='flex flex-col gap-0.5'>
+        {[1, 2, 3].map((i) => (
+          <div key={i} className='flex h-[25px] items-center px-[6px]'>
+            <div className='h-3 w-full animate-pulse rounded bg-muted/40' />
+          </div>
+        ))}
+      </div>
+    </>
+  )
+}

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/chat-history-skeleton/index.ts

@@ -0,0 +1 @@
+export * from './chat-history-skeleton'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/checkpoint-discard-modal/checkpoint-discard-modal.tsx

@@ -0,0 +1,56 @@
+import { Button } from '@/components/emcn'
+
+interface CheckpointDiscardModalProps {
+  isProcessingDiscard: boolean
+  onCancel: () => void
+  onRevert: () => void
+  onContinue: () => void
+}
+
+/**
+ * Inline confirmation modal for discarding checkpoints during message editing
+ * Shows options to cancel, revert to checkpoint, or continue without reverting
+ */
+export function CheckpointDiscardModal({
+  isProcessingDiscard,
+  onCancel,
+  onRevert,
+  onContinue,
+}: CheckpointDiscardModalProps) {
+  return (
+    <div className='mt-[8px] rounded-[4px] border border-[var(--border)] bg-[var(--surface-4)] p-[10px]'>
+      <p className='mb-[8px] text-[12px] text-[var(--text-primary)]'>
+        Continue from a previous message?
+      </p>
+      <div className='flex gap-[8px]'>
+        <Button
+          onClick={onCancel}
+          variant='active'
+          size='sm'
+          className='flex-1'
+          disabled={isProcessingDiscard}
+        >
+          Cancel
+        </Button>
+        <Button
+          onClick={onRevert}
+          variant='destructive'
+          size='sm'
+          className='flex-1'
+          disabled={isProcessingDiscard}
+        >
+          {isProcessingDiscard ? 'Reverting...' : 'Revert'}
+        </Button>
+        <Button
+          onClick={onContinue}
+          variant='tertiary'
+          size='sm'
+          className='flex-1'
+          disabled={isProcessingDiscard}
+        >
+          Continue
+        </Button>
+      </div>
+    </div>
+  )
+}

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/checkpoint-discard-modal/index.ts

@@ -0,0 +1 @@
+export * from './checkpoint-discard-modal'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/file-display/index.ts

@@ -0,0 +1 @@
+export * from './file-display'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/index.ts

@@ -1,5 +1,7 @@
+export * from './checkpoint-discard-modal'
 export * from './file-display'
-export { default as CopilotMarkdownRenderer } from './markdown-renderer'
+export { CopilotMarkdownRenderer } from './markdown-renderer'
+export * from './restore-checkpoint-modal'
 export * from './smooth-streaming'
 export * from './thinking-block'
 export * from './usage-limit-actions'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/markdown-renderer/index.ts

@@ -0,0 +1 @@
+export { default as CopilotMarkdownRenderer } from './markdown-renderer'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/restore-checkpoint-modal/index.ts

@@ -0,0 +1 @@
+export * from './restore-checkpoint-modal'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/restore-checkpoint-modal/restore-checkpoint-modal.tsx

@@ -0,0 +1,46 @@
+import { Button } from '@/components/emcn'
+
+interface RestoreCheckpointModalProps {
+  isReverting: boolean
+  onCancel: () => void
+  onConfirm: () => void
+}
+
+/**
+ * Inline confirmation modal for restoring a checkpoint
+ * Warns user that the action cannot be undone
+ */
+export function RestoreCheckpointModal({
+  isReverting,
+  onCancel,
+  onConfirm,
+}: RestoreCheckpointModalProps) {
+  return (
+    <div className='mt-[8px] rounded-[4px] border border-[var(--border)] bg-[var(--surface-4)] p-[10px]'>
+      <p className='mb-[8px] text-[12px] text-[var(--text-primary)]'>
+        Revert to checkpoint? This will restore your workflow to the state saved at this checkpoint.{' '}
+        <span className='text-[var(--text-error)]'>This action cannot be undone.</span>
+      </p>
+      <div className='flex gap-[8px]'>
+        <Button
+          onClick={onCancel}
+          variant='active'
+          size='sm'
+          className='flex-1'
+          disabled={isReverting}
+        >
+          Cancel
+        </Button>
+        <Button
+          onClick={onConfirm}
+          variant='destructive'
+          size='sm'
+          className='flex-1'
+          disabled={isReverting}
+        >
+          {isReverting ? 'Reverting...' : 'Revert'}
+        </Button>
+      </div>
+    </div>
+  )
+}

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/smooth-streaming/index.ts

@@ -0,0 +1 @@
+export * from './smooth-streaming'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/smooth-streaming/smooth-streaming.tsx

@@ -1,6 +1,6 @@
 import { memo, useEffect, useRef, useState } from 'react'
 import { cn } from '@/lib/core/utils/cn'
-import CopilotMarkdownRenderer from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/markdown-renderer'
+import { CopilotMarkdownRenderer } from '../markdown-renderer'
 
 /**
  * Character animation delay in milliseconds

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/thinking-block/index.ts

@@ -0,0 +1 @@
+export * from './thinking-block'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/thinking-block/thinking-block.tsx

@@ -3,15 +3,20 @@
 import { memo, useEffect, useMemo, useRef, useState } from 'react'
 import clsx from 'clsx'
 import { ChevronUp } from 'lucide-react'
-import CopilotMarkdownRenderer from './markdown-renderer'
+import { CopilotMarkdownRenderer } from '../markdown-renderer'
 
 /**
  * Removes thinking tags (raw or escaped) from streamed content.
+ * Also strips special tags (options, plan) that may have been accidentally included.
  */
 function stripThinkingTags(text: string): string {
   return text
     .replace(/<\/?thinking[^>]*>/gi, '')
     .replace(/&lt;\/?thinking[^&]*&gt;/gi, '')
+    .replace(/<options>[\s\S]*?<\/options>/gi, '') // Strip complete options tags
+    .replace(/<options>[\s\S]*$/gi, '') // Strip incomplete/streaming options tags
+    .replace(/<plan>[\s\S]*?<\/plan>/gi, '') // Strip complete plan tags
+    .replace(/<plan>[\s\S]*$/gi, '') // Strip incomplete/streaming plan tags
     .trim()
 }
 

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/usage-limit-actions/index.ts

@@ -0,0 +1 @@
+export * from './usage-limit-actions'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/copilot-message.tsx

@@ -9,18 +9,22 @@ import {
   ToolCall,
 } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components'
 import {
+  CheckpointDiscardModal,
   FileAttachmentDisplay,
+  RestoreCheckpointModal,
   SmoothStreamingText,
   StreamingIndicator,
   ThinkingBlock,
   UsageLimitActions,
 } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components'
-import CopilotMarkdownRenderer from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/markdown-renderer'
+import { CopilotMarkdownRenderer } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/markdown-renderer'
 import {
   useCheckpointManagement,
+  useMessageContentAnalysis,
   useMessageEditing,
 } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/hooks'
 import { UserInput } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/user-input'
+import { buildMentionHighlightNodes } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/utils'
 import type { CopilotMessage as CopilotMessageType } from '@/stores/panel'
 import { useCopilotStore } from '@/stores/panel'
 
@@ -179,6 +183,32 @@ const CopilotMessage: FC<CopilotMessageProps> = memo(
       return message.content ? parseSpecialTags(message.content) : null
     }, [message.content, message.contentBlocks, isUser, isStreaming])
 
+    // Detect previously selected option by checking if the next user message matches an option
+    const selectedOptionKey = useMemo(() => {
+      if (!parsedTags?.options || isStreaming) return null
+
+      // Find the index of this message in the messages array
+      const currentIndex = messages.findIndex((m) => m.id === message.id)
+      if (currentIndex === -1 || currentIndex >= messages.length - 1) return null
+
+      // Get the next message
+      const nextMessage = messages[currentIndex + 1]
+      if (!nextMessage || nextMessage.role !== 'user') return null
+
+      const nextContent = nextMessage.content?.trim()
+      if (!nextContent) return null
+
+      // Check if the next user message content matches any option title
+      for (const [key, option] of Object.entries(parsedTags.options)) {
+        const optionTitle = typeof option === 'string' ? option : option.title
+        if (nextContent === optionTitle) {
+          return key
+        }
+      }
+
+      return null
+    }, [parsedTags?.options, messages, message.id, isStreaming])
+
     // Get sendMessage from store for continuation actions
     const sendMessage = useCopilotStore((s) => s.sendMessage)
 
@@ -191,6 +221,9 @@ const CopilotMessage: FC<CopilotMessageProps> = memo(
       [sendMessage]
     )
 
+    // Analyze message content for visibility (used for assistant messages)
+    const { hasVisibleContent } = useMessageContentAnalysis({ message })
+
     // Memoize content blocks to avoid re-rendering unchanged blocks
     // No entrance animations to prevent layout shift
     const memoizedContentBlocks = useMemo(() => {
@@ -290,40 +323,12 @@ const CopilotMessage: FC<CopilotMessageProps> = memo(
 
               {/* Inline Checkpoint Discard Confirmation - shown below input in edit mode */}
               {showCheckpointDiscardModal && (
-                <div className='mt-[8px] rounded-[4px] border border-[var(--border)] bg-[var(--surface-4)] p-[10px]'>
-                  <p className='mb-[8px] text-[12px] text-[var(--text-primary)]'>
-                    Continue from a previous message?
-                  </p>
-                  <div className='flex gap-[8px]'>
-                    <Button
-                      onClick={handleCancelCheckpointDiscard}
-                      variant='active'
-                      size='sm'
-                      className='flex-1'
-                      disabled={isProcessingDiscard}
-                    >
-                      Cancel
-                    </Button>
-                    <Button
-                      onClick={handleContinueAndRevert}
-                      variant='destructive'
-                      size='sm'
-                      className='flex-1'
-                      disabled={isProcessingDiscard}
-                    >
-                      {isProcessingDiscard ? 'Reverting...' : 'Revert'}
-                    </Button>
-                    <Button
-                      onClick={handleContinueWithoutRevert}
-                      variant='tertiary'
-                      size='sm'
-                      className='flex-1'
-                      disabled={isProcessingDiscard}
-                    >
-                      Continue
-                    </Button>
-                  </div>
-                </div>
+                <CheckpointDiscardModal
+                  isProcessingDiscard={isProcessingDiscard}
+                  onCancel={handleCancelCheckpointDiscard}
+                  onRevert={handleContinueAndRevert}
+                  onContinue={handleContinueWithoutRevert}
+                />
               )}
             </div>
           ) : (
@@ -348,46 +353,15 @@ const CopilotMessage: FC<CopilotMessageProps> = memo(
                   ref={messageContentRef}
                   className={`relative whitespace-pre-wrap break-words px-[2px] py-1 font-medium font-sans text-[var(--text-primary)] text-sm leading-[1.25rem] ${isSendingMessage && isLastUserMessage && isHoveringMessage ? 'pr-7' : ''} ${!isExpanded && needsExpansion ? 'max-h-[60px] overflow-hidden' : 'overflow-visible'}`}
                 >
-                  {(() => {
-                    const text = message.content || ''
-                    const contexts: any[] = Array.isArray((message as any).contexts)
-                      ? ((message as any).contexts as any[])
-                      : []
-
-                    // Build tokens with their prefixes (@ for mentions, / for commands)
-                    const tokens = contexts
-                      .filter((c) => c?.kind !== 'current_workflow' && c?.label)
-                      .map((c) => {
-                        const prefix = c?.kind === 'slash_command' ? '/' : '@'
-                        return `${prefix}${c.label}`
-                      })
-                    if (!tokens.length) return text
-
-                    const escapeRegex = (s: string) => s.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
-                    const pattern = new RegExp(`(${tokens.map(escapeRegex).join('|')})`, 'g')
-
-                    const nodes: React.ReactNode[] = []
-                    let lastIndex = 0
-                    let match: RegExpExecArray | null
-                    while ((match = pattern.exec(text)) !== null) {
-                      const i = match.index
-                      const before = text.slice(lastIndex, i)
-                      if (before) nodes.push(before)
-                      const mention = match[0]
-                      nodes.push(
-                        <span
-                          key={`mention-${i}-${lastIndex}`}
-                          className='rounded-[4px] bg-[rgba(50,189,126,0.65)] py-[1px]'
-                        >
-                          {mention}
-                        </span>
-                      )
-                      lastIndex = i + mention.length
-                    }
-                    const tail = text.slice(lastIndex)
-                    if (tail) nodes.push(tail)
-                    return nodes
-                  })()}
+                  {buildMentionHighlightNodes(
+                    message.content || '',
+                    message.contexts || [],
+                    (token, key) => (
+                      <span key={key} className='rounded-[4px] bg-[rgba(50,189,126,0.65)] py-[1px]'>
+                        {token}
+                      </span>
+                    )
+                  )}
                 </div>
 
                 {/* Gradient fade when truncated - applies to entire message box */}
@@ -439,50 +413,16 @@ const CopilotMessage: FC<CopilotMessageProps> = memo(
 
           {/* Inline Restore Checkpoint Confirmation */}
           {showRestoreConfirmation && (
-            <div className='mt-[8px] rounded-[4px] border border-[var(--border)] bg-[var(--surface-4)] p-[10px]'>
-              <p className='mb-[8px] text-[12px] text-[var(--text-primary)]'>
-                Revert to checkpoint? This will restore your workflow to the state saved at this
-                checkpoint.{' '}
-                <span className='text-[var(--text-error)]'>This action cannot be undone.</span>
-              </p>
-              <div className='flex gap-[8px]'>
-                <Button
-                  onClick={handleCancelRevert}
-                  variant='active'
-                  size='sm'
-                  className='flex-1'
-                  disabled={isReverting}
-                >
-                  Cancel
-                </Button>
-                <Button
-                  onClick={handleConfirmRevert}
-                  variant='destructive'
-                  size='sm'
-                  className='flex-1'
-                  disabled={isReverting}
-                >
-                  {isReverting ? 'Reverting...' : 'Revert'}
-                </Button>
-              </div>
-            </div>
+            <RestoreCheckpointModal
+              isReverting={isReverting}
+              onCancel={handleCancelRevert}
+              onConfirm={handleConfirmRevert}
+            />
           )}
         </div>
       )
     }
 
-    // Check if there's any visible content in the blocks
-    const hasVisibleContent = useMemo(() => {
-      if (!message.contentBlocks || message.contentBlocks.length === 0) return false
-      return message.contentBlocks.some((block) => {
-        if (block.type === 'text') {
-          const parsed = parseSpecialTags(block.content)
-          return parsed.cleanContent.trim().length > 0
-        }
-        return block.type === 'thinking' || block.type === 'tool_call'
-      })
-    }, [message.contentBlocks])
-
     if (isAssistant) {
       return (
         <div
@@ -534,6 +474,7 @@ const CopilotMessage: FC<CopilotMessageProps> = memo(
                   isLastMessage && !isStreaming && parsedTags.optionsComplete === true
                 }
                 streaming={isStreaming || !parsedTags.optionsComplete}
+                selectedOptionKey={selectedOptionKey}
               />
             )}
           </div>

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/hooks/index.ts

@@ -1,2 +1,3 @@
 export { useCheckpointManagement } from './use-checkpoint-management'
+export { useMessageContentAnalysis } from './use-message-content-analysis'
 export { useMessageEditing } from './use-message-editing'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/hooks/use-message-content-analysis.ts

@@ -0,0 +1,31 @@
+import { useMemo } from 'react'
+import { parseSpecialTags } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components'
+import type { CopilotMessage } from '@/stores/panel'
+
+interface UseMessageContentAnalysisProps {
+  message: CopilotMessage
+}
+
+/**
+ * Hook to analyze message content blocks for visibility and content
+ * Determines if there's any visible content to display
+ *
+ * @param props - Configuration containing the message to analyze
+ * @returns Object containing visibility analysis results
+ */
+export function useMessageContentAnalysis({ message }: UseMessageContentAnalysisProps) {
+  const hasVisibleContent = useMemo(() => {
+    if (!message.contentBlocks || message.contentBlocks.length === 0) return false
+    return message.contentBlocks.some((block) => {
+      if (block.type === 'text') {
+        const parsed = parseSpecialTags(block.content)
+        return parsed.cleanContent.trim().length > 0
+      }
+      return block.type === 'thinking' || block.type === 'tool_call'
+    })
+  }, [message.contentBlocks])
+
+  return {
+    hasVisibleContent,
+  }
+}

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/hooks/use-message-editing.ts

@@ -2,11 +2,18 @@
 
 import { useCallback, useEffect, useRef, useState } from 'react'
 import { createLogger } from '@sim/logger'
-import type { CopilotMessage } from '@/stores/panel'
+import type { ChatContext, CopilotMessage, MessageFileAttachment } from '@/stores/panel'
 import { useCopilotStore } from '@/stores/panel'
 
 const logger = createLogger('useMessageEditing')
 
+/**
+ * Ref interface for UserInput component
+ */
+interface UserInputRef {
+  focus: () => void
+}
+
 /**
  * Message truncation height in pixels
  */
@@ -32,8 +39,8 @@ interface UseMessageEditingProps {
   setShowCheckpointDiscardModal: (show: boolean) => void
   pendingEditRef: React.MutableRefObject<{
     message: string
-    fileAttachments?: any[]
-    contexts?: any[]
+    fileAttachments?: MessageFileAttachment[]
+    contexts?: ChatContext[]
   } | null>
   /**
    * When true, disables the internal document click-outside handler.
@@ -69,7 +76,7 @@ export function useMessageEditing(props: UseMessageEditingProps) {
 
   const editContainerRef = useRef<HTMLDivElement>(null)
   const messageContentRef = useRef<HTMLDivElement>(null)
-  const userInputRef = useRef<any>(null)
+  const userInputRef = useRef<UserInputRef>(null)
 
   const { sendMessage, isSendingMessage, abortMessage, currentChat } = useCopilotStore()
 
@@ -121,7 +128,11 @@ export function useMessageEditing(props: UseMessageEditingProps) {
    * Truncates messages after edited message and resends with same ID
    */
   const performEdit = useCallback(
-    async (editedMessage: string, fileAttachments?: any[], contexts?: any[]) => {
+    async (
+      editedMessage: string,
+      fileAttachments?: MessageFileAttachment[],
+      contexts?: ChatContext[]
+    ) => {
       const currentMessages = messages
       const editIndex = currentMessages.findIndex((m) => m.id === message.id)
 
@@ -134,7 +145,7 @@ export function useMessageEditing(props: UseMessageEditingProps) {
           ...message,
           content: editedMessage,
           fileAttachments: fileAttachments || message.fileAttachments,
-          contexts: contexts || (message as any).contexts,
+          contexts: contexts || message.contexts,
         }
 
         useCopilotStore.setState({ messages: [...truncatedMessages, updatedMessage] })
@@ -153,7 +164,7 @@ export function useMessageEditing(props: UseMessageEditingProps) {
                   timestamp: m.timestamp,
                   ...(m.contentBlocks && { contentBlocks: m.contentBlocks }),
                   ...(m.fileAttachments && { fileAttachments: m.fileAttachments }),
-                  ...((m as any).contexts && { contexts: (m as any).contexts }),
+                  ...(m.contexts && { contexts: m.contexts }),
                 })),
               }),
             })
@@ -164,7 +175,7 @@ export function useMessageEditing(props: UseMessageEditingProps) {
 
         await sendMessage(editedMessage, {
           fileAttachments: fileAttachments || message.fileAttachments,
-          contexts: contexts || (message as any).contexts,
+          contexts: contexts || message.contexts,
           messageId: message.id,
           queueIfBusy: false,
         })
@@ -178,7 +189,11 @@ export function useMessageEditing(props: UseMessageEditingProps) {
    * Checks for checkpoints and shows confirmation if needed
    */
   const handleSubmitEdit = useCallback(
-    async (editedMessage: string, fileAttachments?: any[], contexts?: any[]) => {
+    async (
+      editedMessage: string,
+      fileAttachments?: MessageFileAttachment[],
+      contexts?: ChatContext[]
+    ) => {
       if (!editedMessage.trim()) return
 
       if (isSendingMessage) {

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/index.ts

@@ -0,0 +1 @@
+export * from './copilot-message'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/index.ts

@@ -1,7 +1,8 @@
-export * from './copilot-message/copilot-message'
-export * from './plan-mode-section/plan-mode-section'
-export * from './queued-messages/queued-messages'
-export * from './todo-list/todo-list'
-export * from './tool-call/tool-call'
-export * from './user-input/user-input'
-export * from './welcome/welcome'
+export * from './chat-history-skeleton'
+export * from './copilot-message'
+export * from './plan-mode-section'
+export * from './queued-messages'
+export * from './todo-list'
+export * from './tool-call'
+export * from './user-input'
+export * from './welcome'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/plan-mode-section/index.ts

@@ -0,0 +1 @@
+export * from './plan-mode-section'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/plan-mode-section/plan-mode-section.tsx

@@ -29,7 +29,7 @@ import { Check, GripHorizontal, Pencil, X } from 'lucide-react'
 import { Button, Textarea } from '@/components/emcn'
 import { Trash } from '@/components/emcn/icons/trash'
 import { cn } from '@/lib/core/utils/cn'
-import CopilotMarkdownRenderer from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/markdown-renderer'
+import { CopilotMarkdownRenderer } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/markdown-renderer'
 
 /**
  * Shared border and background styles

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/queued-messages/index.ts

@@ -0,0 +1 @@
+export * from './queued-messages'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/todo-list/index.ts

@@ -0,0 +1 @@
+export * from './todo-list'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/tool-call/index.ts

@@ -0,0 +1 @@
+export * from './tool-call'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/tool-call/tool-call.tsx

@@ -15,7 +15,7 @@ import {
   hasInterrupt as hasInterruptFromConfig,
   isSpecialTool as isSpecialToolFromConfig,
 } from '@/lib/copilot/tools/client/ui-config'
-import CopilotMarkdownRenderer from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/markdown-renderer'
+import { CopilotMarkdownRenderer } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/markdown-renderer'
 import { SmoothStreamingText } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/smooth-streaming'
 import { ThinkingBlock } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/copilot-message/components/thinking-block'
 import { getDisplayValue } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/workflow-block/workflow-block'
@@ -244,6 +244,7 @@ export function OptionsSelector({
   disabled = false,
   enableKeyboardNav = false,
   streaming = false,
+  selectedOptionKey = null,
 }: {
   options: Record<string, OptionItem>
   onSelect: (optionKey: string, optionText: string) => void
@@ -252,6 +253,8 @@ export function OptionsSelector({
   enableKeyboardNav?: boolean
   /** When true, looks enabled but interaction is disabled (for streaming state) */
   streaming?: boolean
+  /** Pre-selected option key (for restoring selection from history) */
+  selectedOptionKey?: string | null
 }) {
   const isInteractionDisabled = disabled || streaming
   const sortedOptions = useMemo(() => {
@@ -270,7 +273,7 @@ export function OptionsSelector({
   }, [options])
 
   const [hoveredIndex, setHoveredIndex] = useState(0)
-  const [chosenKey, setChosenKey] = useState<string | null>(null)
+  const [chosenKey, setChosenKey] = useState<string | null>(selectedOptionKey)
   const containerRef = useRef<HTMLDivElement>(null)
 
   const isLocked = chosenKey !== null

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/attached-files-display/index.ts

@@ -0,0 +1 @@
+export * from './attached-files-display'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/bottom-controls/bottom-controls.tsx

@@ -0,0 +1,127 @@
+'use client'
+
+import { ArrowUp, Image, Loader2 } from 'lucide-react'
+import { Badge, Button } from '@/components/emcn'
+import { cn } from '@/lib/core/utils/cn'
+import { ModeSelector } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/mode-selector/mode-selector'
+import { ModelSelector } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/model-selector/model-selector'
+
+interface BottomControlsProps {
+  mode: 'ask' | 'build' | 'plan'
+  onModeChange?: (mode: 'ask' | 'build' | 'plan') => void
+  selectedModel: string
+  onModelSelect: (model: string) => void
+  isNearTop: boolean
+  disabled: boolean
+  hideModeSelector: boolean
+  canSubmit: boolean
+  isLoading: boolean
+  isAborting: boolean
+  showAbortButton: boolean
+  onSubmit: () => void
+  onAbort: () => void
+  onFileSelect: () => void
+}
+
+/**
+ * Bottom controls section of the user input
+ * Contains mode selector, model selector, file attachment button, and submit/abort buttons
+ */
+export function BottomControls({
+  mode,
+  onModeChange,
+  selectedModel,
+  onModelSelect,
+  isNearTop,
+  disabled,
+  hideModeSelector,
+  canSubmit,
+  isLoading,
+  isAborting,
+  showAbortButton,
+  onSubmit,
+  onAbort,
+  onFileSelect,
+}: BottomControlsProps) {
+  return (
+    <div className='flex items-center justify-between gap-2'>
+      {/* Left side: Mode Selector + Model Selector */}
+      <div className='flex min-w-0 flex-1 items-center gap-[8px]'>
+        {!hideModeSelector && (
+          <ModeSelector
+            mode={mode}
+            onModeChange={onModeChange}
+            isNearTop={isNearTop}
+            disabled={disabled}
+          />
+        )}
+
+        <ModelSelector
+          selectedModel={selectedModel}
+          isNearTop={isNearTop}
+          onModelSelect={onModelSelect}
+        />
+      </div>
+
+      {/* Right side: Attach Button + Send Button */}
+      <div className='flex flex-shrink-0 items-center gap-[10px]'>
+        <Badge
+          onClick={onFileSelect}
+          title='Attach file'
+          className={cn(
+            'cursor-pointer rounded-[6px] border-0 bg-transparent p-[0px] dark:bg-transparent',
+            disabled && 'cursor-not-allowed opacity-50'
+          )}
+        >
+          <Image className='!h-3.5 !w-3.5 scale-x-110' />
+        </Badge>
+
+        {showAbortButton ? (
+          <Button
+            onClick={onAbort}
+            disabled={isAborting}
+            className={cn(
+              'h-[20px] w-[20px] rounded-full border-0 p-0 transition-colors',
+              !isAborting
+                ? 'bg-[var(--c-383838)] hover:bg-[var(--c-575757)] dark:bg-[var(--c-E0E0E0)] dark:hover:bg-[var(--c-CFCFCF)]'
+                : 'bg-[var(--c-383838)] dark:bg-[var(--c-E0E0E0)]'
+            )}
+            title='Stop generation'
+          >
+            {isAborting ? (
+              <Loader2 className='block h-[13px] w-[13px] animate-spin text-white dark:text-black' />
+            ) : (
+              <svg
+                className='block h-[13px] w-[13px] fill-white dark:fill-black'
+                viewBox='0 0 24 24'
+                xmlns='http://www.w3.org/2000/svg'
+              >
+                <rect x='4' y='4' width='16' height='16' rx='3' ry='3' />
+              </svg>
+            )}
+          </Button>
+        ) : (
+          <Button
+            onClick={onSubmit}
+            disabled={!canSubmit}
+            className={cn(
+              'h-[22px] w-[22px] rounded-full border-0 p-0 transition-colors',
+              canSubmit
+                ? 'bg-[var(--c-383838)] hover:bg-[var(--c-575757)] dark:bg-[var(--c-E0E0E0)] dark:hover:bg-[var(--c-CFCFCF)]'
+                : 'bg-[var(--c-808080)] dark:bg-[var(--c-808080)]'
+            )}
+          >
+            {isLoading ? (
+              <Loader2 className='block h-3.5 w-3.5 animate-spin text-white dark:text-black' />
+            ) : (
+              <ArrowUp
+                className='block h-3.5 w-3.5 text-white dark:text-black'
+                strokeWidth={2.25}
+              />
+            )}
+          </Button>
+        )}
+      </div>
+    </div>
+  )
+}

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/bottom-controls/index.ts

@@ -0,0 +1 @@
+export * from './bottom-controls'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/context-pills/index.ts

@@ -0,0 +1 @@
+export * from './context-pills'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/index.ts

@@ -1,6 +1,7 @@
-export { AttachedFilesDisplay } from './attached-files-display/attached-files-display'
-export { ContextPills } from './context-pills/context-pills'
-export { type MentionFolderNav, MentionMenu } from './mention-menu/mention-menu'
-export { ModeSelector } from './mode-selector/mode-selector'
-export { ModelSelector } from './model-selector/model-selector'
-export { type SlashFolderNav, SlashMenu } from './slash-menu/slash-menu'
+export { AttachedFilesDisplay } from './attached-files-display'
+export { BottomControls } from './bottom-controls'
+export { ContextPills } from './context-pills'
+export { type MentionFolderNav, MentionMenu } from './mention-menu'
+export { ModeSelector } from './mode-selector'
+export { ModelSelector } from './model-selector'
+export { type SlashFolderNav, SlashMenu } from './slash-menu'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/mention-menu/index.ts

@@ -0,0 +1 @@
+export * from './mention-menu'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/mode-selector/index.ts

@@ -0,0 +1 @@
+export * from './mode-selector'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/model-selector/index.ts

@@ -0,0 +1 @@
+export * from './model-selector'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components/slash-menu/index.ts

@@ -0,0 +1 @@
+export * from './slash-menu'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/index.ts

@@ -5,5 +5,6 @@ export { useMentionData } from './use-mention-data'
 export { useMentionInsertHandlers } from './use-mention-insert-handlers'
 export { useMentionKeyboard } from './use-mention-keyboard'
 export { useMentionMenu } from './use-mention-menu'
+export { useMentionSystem } from './use-mention-system'
 export { useMentionTokens } from './use-mention-tokens'
 export { useTextareaAutoResize } from './use-textarea-auto-resize'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-context-management.ts

@@ -1,5 +1,6 @@
 import { useCallback, useEffect, useRef, useState } from 'react'
 import {
+  escapeRegex,
   filterOutContext,
   isContextAlreadySelected,
 } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/utils'
@@ -22,9 +23,6 @@ interface UseContextManagementProps {
 export function useContextManagement({ message, initialContexts }: UseContextManagementProps) {
   const [selectedContexts, setSelectedContexts] = useState<ChatContext[]>(initialContexts ?? [])
   const initializedRef = useRef(false)
-  const escapeRegex = useCallback((value: string) => {
-    return value.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
-  }, [])
 
   // Initialize with initial contexts when they're first provided (for edit mode)
   useEffect(() => {

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-mention-system.ts

@@ -0,0 +1,107 @@
+import type { MentionFolderNav } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components'
+import { useContextManagement } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-context-management'
+import { useFileAttachments } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-file-attachments'
+import { useMentionData } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-mention-data'
+import { useMentionInsertHandlers } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-mention-insert-handlers'
+import { useMentionKeyboard } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-mention-keyboard'
+import { useMentionMenu } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-mention-menu'
+import { useMentionTokens } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-mention-tokens'
+import { useTextareaAutoResize } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-textarea-auto-resize'
+import type { ChatContext } from '@/stores/panel'
+
+interface UseMentionSystemProps {
+  message: string
+  setMessage: (message: string) => void
+  workflowId: string | null
+  workspaceId: string
+  userId?: string
+  panelWidth: number
+  disabled: boolean
+  isLoading: boolean
+  inputContainerRef: HTMLDivElement | null
+  initialContexts?: ChatContext[]
+  mentionFolderNav: MentionFolderNav | null
+}
+
+/**
+ * Composite hook that combines all mention-related hooks into a single interface.
+ * Reduces import complexity in components that need full mention functionality.
+ *
+ * @param props - Configuration for all mention system hooks
+ * @returns Combined interface for mention system functionality
+ */
+export function useMentionSystem({
+  message,
+  setMessage,
+  workflowId,
+  workspaceId,
+  userId,
+  panelWidth,
+  disabled,
+  isLoading,
+  inputContainerRef,
+  initialContexts,
+  mentionFolderNav,
+}: UseMentionSystemProps) {
+  const contextManagement = useContextManagement({ message, initialContexts })
+
+  const mentionMenu = useMentionMenu({
+    message,
+    selectedContexts: contextManagement.selectedContexts,
+    onContextSelect: contextManagement.addContext,
+    onMessageChange: setMessage,
+  })
+
+  const mentionTokens = useMentionTokens({
+    message,
+    selectedContexts: contextManagement.selectedContexts,
+    mentionMenu,
+    setMessage,
+    setSelectedContexts: contextManagement.setSelectedContexts,
+  })
+
+  const { overlayRef } = useTextareaAutoResize({
+    message,
+    panelWidth,
+    selectedContexts: contextManagement.selectedContexts,
+    textareaRef: mentionMenu.textareaRef,
+    containerRef: inputContainerRef,
+  })
+
+  const mentionData = useMentionData({
+    workflowId,
+    workspaceId,
+  })
+
+  const fileAttachments = useFileAttachments({
+    userId,
+    disabled,
+    isLoading,
+  })
+
+  const insertHandlers = useMentionInsertHandlers({
+    mentionMenu,
+    workflowId,
+    selectedContexts: contextManagement.selectedContexts,
+    onContextAdd: contextManagement.addContext,
+    mentionFolderNav,
+  })
+
+  const mentionKeyboard = useMentionKeyboard({
+    mentionMenu,
+    mentionData,
+    insertHandlers,
+    mentionFolderNav,
+  })
+
+  return {
+    contextManagement,
+    mentionMenu,
+    mentionTokens,
+    overlayRef,
+    mentionData,
+    fileAttachments,
+    insertHandlers,
+    mentionKeyboard,
+  }
+}

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/index.ts

@@ -0,0 +1 @@
+export * from './user-input'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/user-input.tsx

@@ -9,19 +9,19 @@ import {
   useState,
 } from 'react'
 import { createLogger } from '@sim/logger'
-import { ArrowUp, AtSign, Image, Loader2 } from 'lucide-react'
+import { AtSign } from 'lucide-react'
 import { useParams } from 'next/navigation'
 import { createPortal } from 'react-dom'
 import { Badge, Button, Textarea } from '@/components/emcn'
 import { useSession } from '@/lib/auth/auth-client'
+import type { CopilotModelId } from '@/lib/copilot/models'
 import { cn } from '@/lib/core/utils/cn'
 import {
   AttachedFilesDisplay,
+  BottomControls,
   ContextPills,
   type MentionFolderNav,
   MentionMenu,
-  ModelSelector,
-  ModeSelector,
   type SlashFolderNav,
   SlashMenu,
 } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/components'
@@ -44,6 +44,10 @@ import {
   useTextareaAutoResize,
 } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks'
 import type { MessageFileAttachment } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-file-attachments'
+import {
+  computeMentionHighlightRanges,
+  extractContextTokens,
+} from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/utils'
 import type { ChatContext } from '@/stores/panel'
 import { useCopilotStore } from '@/stores/panel'
 
@@ -306,7 +310,7 @@ const UserInput = forwardRef<UserInputRef, UserInputProps>(
             size: f.size,
           }))
 
-        onSubmit(trimmedMessage, fileAttachmentsForApi, contextManagement.selectedContexts as any)
+        onSubmit(trimmedMessage, fileAttachmentsForApi, contextManagement.selectedContexts)
 
         const shouldClearInput = clearOnSubmit && !options.preserveInput && !overrideMessage
         if (shouldClearInput) {
@@ -657,7 +661,7 @@ const UserInput = forwardRef<UserInputRef, UserInputProps>(
 
     const handleModelSelect = useCallback(
       (model: string) => {
-        setSelectedModel(model as any)
+        setSelectedModel(model as CopilotModelId)
       },
       [setSelectedModel]
     )
@@ -677,15 +681,17 @@ const UserInput = forwardRef<UserInputRef, UserInputProps>(
         return <span>{displayText}</span>
       }
 
-      const elements: React.ReactNode[] = []
-      const ranges = mentionTokensWithContext.computeMentionRanges()
+      const tokens = extractContextTokens(contexts)
+      const ranges = computeMentionHighlightRanges(message, tokens)
 
       if (ranges.length === 0) {
         const displayText = message.endsWith('\n') ? `${message}\u200B` : message
         return <span>{displayText}</span>
       }
 
+      const elements: React.ReactNode[] = []
       let lastIndex = 0
+
       for (let i = 0; i < ranges.length; i++) {
         const range = ranges[i]
 
@@ -694,13 +700,12 @@ const UserInput = forwardRef<UserInputRef, UserInputProps>(
           elements.push(<span key={`text-${i}-${lastIndex}-${range.start}`}>{before}</span>)
         }
 
-        const mentionText = message.slice(range.start, range.end)
         elements.push(
           <span
             key={`mention-${i}-${range.start}-${range.end}`}
             className='rounded-[4px] bg-[rgba(50,189,126,0.65)] py-[1px]'
           >
-            {mentionText}
+            {range.token}
           </span>
         )
         lastIndex = range.end
@@ -713,7 +718,7 @@ const UserInput = forwardRef<UserInputRef, UserInputProps>(
       }
 
       return elements.length > 0 ? elements : <span>{'\u00A0'}</span>
-    }, [message, contextManagement.selectedContexts, mentionTokensWithContext])
+    }, [message, contextManagement.selectedContexts])
 
     return (
       <div
@@ -855,87 +860,22 @@ const UserInput = forwardRef<UserInputRef, UserInputProps>(
           </div>
 
           {/* Bottom Row: Mode Selector + Model Selector + Attach Button + Send Button */}
-          <div className='flex items-center justify-between gap-2'>
-            {/* Left side: Mode Selector + Model Selector */}
-            <div className='flex min-w-0 flex-1 items-center gap-[8px]'>
-              {!hideModeSelector && (
-                <ModeSelector
-                  mode={mode}
-                  onModeChange={onModeChange}
-                  isNearTop={isNearTop}
-                  disabled={disabled}
-                />
-              )}
-
-              <ModelSelector
-                selectedModel={selectedModel}
-                isNearTop={isNearTop}
-                onModelSelect={handleModelSelect}
-              />
-            </div>
-
-            {/* Right side: Attach Button + Send Button */}
-            <div className='flex flex-shrink-0 items-center gap-[10px]'>
-              <Badge
-                onClick={fileAttachments.handleFileSelect}
-                title='Attach file'
-                className={cn(
-                  'cursor-pointer rounded-[6px] border-0 bg-transparent p-[0px] dark:bg-transparent',
-                  disabled && 'cursor-not-allowed opacity-50'
-                )}
-              >
-                <Image className='!h-3.5 !w-3.5 scale-x-110' />
-              </Badge>
-
-              {showAbortButton ? (
-                <Button
-                  onClick={handleAbort}
-                  disabled={isAborting}
-                  className={cn(
-                    'h-[20px] w-[20px] rounded-full border-0 p-0 transition-colors',
-                    !isAborting
-                      ? 'bg-[var(--c-383838)] hover:bg-[var(--c-575757)] dark:bg-[var(--c-E0E0E0)] dark:hover:bg-[var(--c-CFCFCF)]'
-                      : 'bg-[var(--c-383838)] dark:bg-[var(--c-E0E0E0)]'
-                  )}
-                  title='Stop generation'
-                >
-                  {isAborting ? (
-                    <Loader2 className='block h-[13px] w-[13px] animate-spin text-white dark:text-black' />
-                  ) : (
-                    <svg
-                      className='block h-[13px] w-[13px] fill-white dark:fill-black'
-                      viewBox='0 0 24 24'
-                      xmlns='http://www.w3.org/2000/svg'
-                    >
-                      <rect x='4' y='4' width='16' height='16' rx='3' ry='3' />
-                    </svg>
-                  )}
-                </Button>
-              ) : (
-                <Button
-                  onClick={() => {
-                    void handleSubmit()
-                  }}
-                  disabled={!canSubmit}
-                  className={cn(
-                    'h-[22px] w-[22px] rounded-full border-0 p-0 transition-colors',
-                    canSubmit
-                      ? 'bg-[var(--c-383838)] hover:bg-[var(--c-575757)] dark:bg-[var(--c-E0E0E0)] dark:hover:bg-[var(--c-CFCFCF)]'
-                      : 'bg-[var(--c-808080)] dark:bg-[var(--c-808080)]'
-                  )}
-                >
-                  {isLoading ? (
-                    <Loader2 className='block h-3.5 w-3.5 animate-spin text-white dark:text-black' />
-                  ) : (
-                    <ArrowUp
-                      className='block h-3.5 w-3.5 text-white dark:text-black'
-                      strokeWidth={2.25}
-                    />
-                  )}
-                </Button>
-              )}
-            </div>
-          </div>
+          <BottomControls
+            mode={mode}
+            onModeChange={onModeChange}
+            selectedModel={selectedModel}
+            onModelSelect={handleModelSelect}
+            isNearTop={isNearTop}
+            disabled={disabled}
+            hideModeSelector={hideModeSelector}
+            canSubmit={canSubmit}
+            isLoading={isLoading}
+            isAborting={isAborting}
+            showAbortButton={Boolean(showAbortButton)}
+            onSubmit={() => void handleSubmit()}
+            onAbort={handleAbort}
+            onFileSelect={fileAttachments.handleFileSelect}
+          />
 
           {/* Hidden File Input - enabled during streaming so users can prepare images for the next message */}
           <input

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/utils.ts

@@ -1,3 +1,4 @@
+import type { ReactNode } from 'react'
 import {
   FOLDER_CONFIGS,
   type MentionFolderId,
@@ -5,6 +6,102 @@ import {
 import type { MentionDataReturn } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/user-input/hooks/use-mention-data'
 import type { ChatContext } from '@/stores/panel'
 
+/**
+ * Escapes special regex characters in a string
+ * @param value - String to escape
+ * @returns Escaped string safe for use in RegExp
+ */
+export function escapeRegex(value: string): string {
+  return value.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+}
+
+/**
+ * Extracts mention tokens from contexts for display/matching
+ * Filters out current_workflow contexts and builds prefixed labels
+ * @param contexts - Array of chat contexts
+ * @returns Array of prefixed token strings (e.g., "@workflow", "/web")
+ */
+export function extractContextTokens(contexts: ChatContext[]): string[] {
+  return contexts
+    .filter((c) => c.kind !== 'current_workflow' && c.label)
+    .map((c) => {
+      const prefix = c.kind === 'slash_command' ? '/' : '@'
+      return `${prefix}${c.label}`
+    })
+}
+
+/**
+ * Mention range for text highlighting
+ */
+export interface MentionHighlightRange {
+  start: number
+  end: number
+  token: string
+}
+
+/**
+ * Computes mention ranges in text for highlighting
+ * @param text - Text to search
+ * @param tokens - Prefixed tokens to find (e.g., "@workflow", "/web")
+ * @returns Array of ranges with start, end, and matched token
+ */
+export function computeMentionHighlightRanges(
+  text: string,
+  tokens: string[]
+): MentionHighlightRange[] {
+  if (!tokens.length || !text) return []
+
+  const pattern = new RegExp(`(${tokens.map(escapeRegex).join('|')})`, 'g')
+  const ranges: MentionHighlightRange[] = []
+  let match: RegExpExecArray | null
+
+  while ((match = pattern.exec(text)) !== null) {
+    ranges.push({
+      start: match.index,
+      end: match.index + match[0].length,
+      token: match[0],
+    })
+  }
+
+  return ranges
+}
+
+/**
+ * Builds React nodes with highlighted mention tokens
+ * @param text - Text to render
+ * @param contexts - Chat contexts to highlight
+ * @param createHighlightSpan - Function to create highlighted span element
+ * @returns Array of React nodes with highlighted mentions
+ */
+export function buildMentionHighlightNodes(
+  text: string,
+  contexts: ChatContext[],
+  createHighlightSpan: (token: string, key: string) => ReactNode
+): ReactNode[] {
+  const tokens = extractContextTokens(contexts)
+  if (!tokens.length) return [text]
+
+  const ranges = computeMentionHighlightRanges(text, tokens)
+  if (!ranges.length) return [text]
+
+  const nodes: ReactNode[] = []
+  let lastIndex = 0
+
+  for (const range of ranges) {
+    if (range.start > lastIndex) {
+      nodes.push(text.slice(lastIndex, range.start))
+    }
+    nodes.push(createHighlightSpan(range.token, `mention-${range.start}-${range.end}`))
+    lastIndex = range.end
+  }
+
+  if (lastIndex < text.length) {
+    nodes.push(text.slice(lastIndex))
+  }
+
+  return nodes
+}
+
 /**
  * Gets the data array for a folder ID from mentionData.
  * Uses FOLDER_CONFIGS as the source of truth for key mapping.

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/components/welcome/index.ts

@@ -0,0 +1 @@
+export * from './welcome'

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/copilot.tsx

@@ -24,6 +24,7 @@ import {
 import { Trash } from '@/components/emcn/icons/trash'
 import { cn } from '@/lib/core/utils/cn'
 import {
+  ChatHistorySkeleton,
   CopilotMessage,
   PlanModeSection,
   QueuedMessages,
@@ -40,6 +41,7 @@ import {
   useTodoManagement,
 } from '@/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/hooks'
 import { useScrollManagement } from '@/app/workspace/[workspaceId]/w/[workflowId]/hooks'
+import type { ChatContext } from '@/stores/panel'
 import { useCopilotStore } from '@/stores/panel'
 import { useWorkflowRegistry } from '@/stores/workflows/registry/store'
 
@@ -74,10 +76,12 @@ export const Copilot = forwardRef<CopilotRef, CopilotProps>(({ panelWidth }, ref
   const copilotContainerRef = useRef<HTMLDivElement>(null)
   const cancelEditCallbackRef = useRef<(() => void) | null>(null)
   const [editingMessageId, setEditingMessageId] = useState<string | null>(null)
-  const [isEditingMessage, setIsEditingMessage] = useState(false)
   const [revertingMessageId, setRevertingMessageId] = useState<string | null>(null)
   const [isHistoryDropdownOpen, setIsHistoryDropdownOpen] = useState(false)
 
+  // Derived state - editing when there's an editingMessageId
+  const isEditingMessage = editingMessageId !== null
+
   const { activeWorkflowId } = useWorkflowRegistry()
 
   const {
@@ -106,9 +110,9 @@ export const Copilot = forwardRef<CopilotRef, CopilotProps>(({ panelWidth }, ref
     areChatsFresh,
     workflowId: copilotWorkflowId,
     setPlanTodos,
+    closePlanTodos,
     clearPlanArtifact,
     savePlanArtifact,
-    setSelectedModel,
     loadAutoAllowedTools,
   } = useCopilotStore()
 
@@ -292,6 +296,15 @@ export const Copilot = forwardRef<CopilotRef, CopilotProps>(({ panelWidth }, ref
     }
   }, [abortMessage, showPlanTodos])
 
+  /**
+   * Handles closing the plan todos section
+   * Calls store action and clears the todos
+   */
+  const handleClosePlanTodos = useCallback(() => {
+    closePlanTodos()
+    setPlanTodos([])
+  }, [closePlanTodos, setPlanTodos])
+
   /**
    * Handles message submission to the copilot
    * @param query - The message text to send
@@ -299,13 +312,12 @@ export const Copilot = forwardRef<CopilotRef, CopilotProps>(({ panelWidth }, ref
    * @param contexts - Optional context references
    */
   const handleSubmit = useCallback(
-    async (query: string, fileAttachments?: MessageFileAttachment[], contexts?: any[]) => {
+    async (query: string, fileAttachments?: MessageFileAttachment[], contexts?: ChatContext[]) => {
       // Allow submission even when isSendingMessage - store will queue the message
       if (!query || !activeWorkflowId) return
 
       if (showPlanTodos) {
-        const store = useCopilotStore.getState()
-        store.setPlanTodos([])
+        setPlanTodos([])
       }
 
       try {
@@ -319,7 +331,7 @@ export const Copilot = forwardRef<CopilotRef, CopilotProps>(({ panelWidth }, ref
         logger.error('Failed to send message:', error)
       }
     },
-    [activeWorkflowId, sendMessage, showPlanTodos]
+    [activeWorkflowId, sendMessage, showPlanTodos, setPlanTodos]
   )
 
   /**
@@ -330,7 +342,6 @@ export const Copilot = forwardRef<CopilotRef, CopilotProps>(({ panelWidth }, ref
   const handleEditModeChange = useCallback(
     (messageId: string, isEditing: boolean, cancelCallback?: () => void) => {
       setEditingMessageId(isEditing ? messageId : null)
-      setIsEditingMessage(isEditing)
       cancelEditCallbackRef.current = isEditing ? cancelCallback || null : null
       logger.info('Edit mode changed', { messageId, isEditing, willDimMessages: isEditing })
     },
@@ -375,24 +386,6 @@ export const Copilot = forwardRef<CopilotRef, CopilotProps>(({ panelWidth }, ref
     [handleHistoryDropdownOpenHook]
   )
 
-  /**
-   * Skeleton loading component for chat history
-   */
-  const ChatHistorySkeleton = () => (
-    <>
-      <PopoverSection>
-        <div className='h-3 w-12 animate-pulse rounded bg-muted/40' />
-      </PopoverSection>
-      <div className='flex flex-col gap-0.5'>
-        {[1, 2, 3].map((i) => (
-          <div key={i} className='flex h-[25px] items-center px-[6px]'>
-            <div className='h-3 w-full animate-pulse rounded bg-muted/40' />
-          </div>
-        ))}
-      </div>
-    </>
-  )
-
   return (
     <>
       <div
@@ -588,11 +581,7 @@ export const Copilot = forwardRef<CopilotRef, CopilotProps>(({ panelWidth }, ref
                       <TodoList
                         todos={planTodos}
                         collapsed={todosCollapsed}
-                        onClose={() => {
-                          const store = useCopilotStore.getState()
-                          store.closePlanTodos?.()
-                          useCopilotStore.setState({ planTodos: [] })
-                        }}
+                        onClose={handleClosePlanTodos}
                       />
                     </div>
                   )}

apps/sim/app/workspace/[workspaceId]/w/[workflowId]/components/panel/components/copilot/hooks/use-copilot-initialization.ts

@@ -80,6 +80,25 @@ export function useCopilotInitialization(props: UseCopilotInitializationProps) {
       loadChats(false)
     }
 
+    // Handle race condition: chats loaded for wrong workflow during initial load
+    // This happens when user navigates before initial loadChats completes
+    if (
+      activeWorkflowId &&
+      !isLoadingChats &&
+      chatsLoadedForWorkflow !== null &&
+      chatsLoadedForWorkflow !== activeWorkflowId &&
+      !isSendingMessage
+    ) {
+      logger.info('Chats loaded for wrong workflow, reloading', {
+        loaded: chatsLoadedForWorkflow,
+        active: activeWorkflowId,
+      })
+      setIsInitialized(false)
+      lastWorkflowIdRef.current = activeWorkflowId
+      setCopilotWorkflowId(activeWorkflowId)
+      loadChats(false)
+    }
+
     // Mark as initialized when chats are loaded for the active workflow
     if (
       activeWorkflowId &&

apps/sim/stores/panel/copilot/store.ts

@@ -1736,8 +1736,13 @@ const sseHandlers: Record<string, SSEHandler> = {
     }
   },
   done: (_data, context) => {
+    logger.info('[SSE] DONE EVENT RECEIVED', {
+      doneEventCount: context.doneEventCount,
+      data: _data,
+    })
     context.doneEventCount++
     if (context.doneEventCount >= 1) {
+      logger.info('[SSE] Setting streamComplete = true, stream will terminate')
       context.streamComplete = true
     }
   },
@@ -2542,6 +2547,7 @@ export const useCopilotStore = create<CopilotStore>()(
         set({
           chats: [],
           isLoadingChats: false,
+          chatsLoadedForWorkflow: workflowId,
           error: error instanceof Error ? error.message : 'Failed to load chats',
         })
       }