export declare function setCopilotSettingsToken(token: string | undefined): void;
export declare function clearCopilotAuthCache(): void;
/** Expose the npm root path so callers can run `npm rebuild` there. */
export declare function copilotNpmRoot(): string;
/** Clear the cached SDK dynamic import so the next call to _getSdk() re-imports it. */
export declare function clearCopilotSdkCache(): void;
export declare function isCopilotSdkBusy(root: string): boolean;
export declare function getLatestCopilotSdkSessionId(root: string): string | undefined;
/**
 * Steer the live Copilot SDK session MID-TURN. Unlike copilot-cli (a one-shot
 * subprocess), the SDK holds a persistent LocalSession whose send() accepts
 * mode:'immediate' — the message is injected into the CURRENTLY-RUNNING turn
 * (the model's next call includes it) instead of the default 'enqueue' which
 * waits for the next turn. Returns true only if there's a live/busy session to
 * inject into; false otherwise, so the caller falls back to the durable TODO
 * queue (at-least-once delivery preserved).
 */
export declare function steerCopilotSdk(root: string, text: string, log: (msg: string) => void): Promise<boolean>;
export declare function readCopilotSdkOutputSince(stdoutFile: string, fromByte: number): string;
export declare function sendCopilotSdkPrompt(root: string, promptFilePath: string, _resolvedSessionId: string | undefined, stdoutFile: string, exitFile: string, log: (msg: string) => void, showOutput?: () => void): void;
export declare function closeCopilotSdkSession(root: string, log: (msg: string) => void): void;
export declare function closeAllCopilotSdkSessions(): void;