Class ExtensionHost

apps/cli/src/agent/extension-host.ts:118–614

}

export class ExtensionHost extends EventEmitter implements ExtensionHostInterface {
	// Extension lifecycle.
	private vscode: ReturnType<typeof createVSCodeAPI> | null = null
	private extensionModule: ExtensionModule | null = null
	private extensionAPI: unknown = null
	private options: ExtensionHostOptions
	private isReady = false
	private messageListener: ((message: ExtensionMessage) => void) | null = null
	private initialSettings: RooCodeSettings

	// Console suppression.
	private originalConsole: {
		log: typeof console.log
		warn: typeof console.warn
		error: typeof console.error
		debug: typeof console.debug
		info: typeof console.info
	} | null = null

	private originalProcessEmitWarning: typeof process.emitWarning | null = null

	// Ephemeral storage.
	private ephemeralStorageDir: string | null = null
	private previousCliRuntimeEnv: string | undefined

	// ==========================================================================
	// Managers - These do all the heavy lifting
	// ==========================================================================

	/**
	 * ExtensionClient: Single source of truth for agent loop state.
	 * Handles message processing and state detection.
	 */
	public readonly client: ExtensionClient

	/**
	 * OutputManager: Handles all CLI output and streaming.
	 * Uses Observable pattern internally for stream tracking.
	 */
	private outputManager: OutputManager

	/**
	 * PromptManager: Handles all user input collection.
	 * Provides readline, yes/no, and timed prompts.
	 */
	private promptManager: PromptManager

	/**
	 * AskDispatcher: Routes asks to appropriate handlers.
	 * Uses type guards (isIdleAsk, isInteractiveAsk, etc.) from client module.
	 */
	private askDispatcher: AskDispatcher

	// ==========================================================================
	// Constructor
	// ==========================================================================

	constructor(options: ExtensionHostOptions) {