interface TextContentLike {
    type: string;
    text?: string;
}
interface MessageLike {
    role: string;
    content: string | TextContentLike[];
}
interface SessionEntryLike {
    type: string;
    message?: MessageLike;
}
interface SessionManagerLike {
    getEntries(): SessionEntryLike[];
}
interface UIContextLike {
    setWidget(key: string, content: string[] | undefined, options?: {
        placement?: 'aboveEditor' | 'belowEditor';
    }): void;
}
interface ExtensionCtxLike {
    ui?: UIContextLike;
    mode?: string;
    sessionManager?: SessionManagerLike;
    model?: {
        provider?: string;
        id?: string;
    };
}
type PiEvents = 'session_start' | 'input' | 'turn_end' | 'session_shutdown';
interface PiLike {
    on(event: PiEvents, handler: (event: any, ctx: ExtensionCtxLike) => void): void;
}
/**
 * Register the inactivity-recap chrome on `pi`.
 *
 * Returns immediately (inert) when CRTR_NODE_ID is absent — a plain pi session
 * or legacy job agent loads it as a no-op.
 */
export declare function registerCanvasRecap(pi: PiLike): void;
export default registerCanvasRecap;