A full-bleed accent banner component that indicates when a chat session is running in Guide Mode, displaying a compass icon, label, and optional help tooltip.
## Key Components
### `GuideModeBanner`
The primary exported component. Renders a fixed-height (`h-8`) yellow accent strip intended to appear below a chat header.
| Prop | Type | Default | Description |
|------|------|---------|-------------|
| `label` | `React.ReactNode` | `'Guide Mode Chat'` | Banner label text (rendered uppercase via `text-h5` style) |
| `tooltip` | `React.ReactNode \| null` | Default explanation string | Help icon tooltip copy; pass `null` to hide the help icon entirely |
| `className` | `string` | — | Additional CSS classes merged via `cn()` |
**Visual structure:**
- **Leading:** `CompassIcon` (16px)
- **Center:** Truncated label paragraph
- **Trailing:** `QuestionCircleIcon` button with a `TooltipProvider` (hidden when `tooltip` is `null`)
## Usage Example
```typescript
// Default — shows all three elements with built-in copy
// Custom label only
// Hide the help icon entirely
// Fully custom
```
> **Note:** This component is a Client Component (`'use client'`). It maps to Figma node `7532:328222` and uses ODS design tokens (`bg-ods-accent`, `text-ods-text-on-accent`) for theming. The tooltip uses `delayDuration={0}` for immediate display.