import type { SessionEntry } from "@earendil-works/pi-coding-agent";
export type CompactionOwner = "fabric" | "pi" | "external" | "none";
export declare const COMPACTION_OWNERSHIP_DOC = "docs/compaction.md#pi-vcc-precedence";
interface CompactionEntryView {
    details?: unknown;
    fromHook?: boolean;
}
export declare const compactionOwnerOf: (entry: CompactionEntryView | undefined) => CompactionOwner;
export declare const observedCompactionOwner: (entries: readonly SessionEntry[]) => CompactionOwner;
export declare const ownerFromContext: (context: {
    sessionManager?: {
        getBranch?: () => SessionEntry[];
    };
} | undefined) => CompactionOwner;
export declare const ownershipWarning: (owner: Exclude<CompactionOwner, "fabric" | "none">) => string;
export declare class CompactionOwnerObserver {
    #private;
    noteDeliberateYield(): void;
    /** Returns the warning text the first time a foreign owner wins in a session. */
    observe(sessionId: string, entry: CompactionEntryView, fabricEngineEnabled: boolean): {
        owner: CompactionOwner;
        warning?: string;
    };
}
export {};
//# sourceMappingURL=owner.d.ts.map