Function getModeSelection

src/shared/modes.ts:111–132

(mode: string, promptComponent?: PromptComponent, customModes?: ModeConfig[])

 * If neither is found, the default mode is used.
 */
export function getModeSelection(mode: string, promptComponent?: PromptComponent, customModes?: ModeConfig[]) {
	const customMode = findModeBySlug(mode, customModes)
	const builtInMode = findModeBySlug(mode, modes)

	// If we have a custom mode, use it entirely
	if (customMode) {
		return {
			roleDefinition: customMode.roleDefinition || "",
			baseInstructions: customMode.customInstructions || "",
			description: customMode.description || "",
		}
	}

	// Otherwise, use built-in mode as base and merge with promptComponent
	const baseMode = builtInMode || modes[0] // fallback to default mode

	return {
		roleDefinition: promptComponent?.roleDefinition || baseMode.roleDefinition || "",
		baseInstructions: promptComponent?.customInstructions || baseMode.customInstructions || "",
		description: baseMode.description || "",
	}
}

// Custom error class for file restrictions
export class FileRestrictionError extends Error {