import { type PolicyResult } from "../../domain/policy/policy-result";
import type { RuntimeEffect } from "../../runtime/opencode/effects";
import type { RuntimeBeforeCompactionInput, RuntimeCompactionInput } from "./runtime-policy";
export interface CompactionSessionPolicy {
    beforeCompaction(input: RuntimeBeforeCompactionInput): void | Promise<void>;
    onCompaction(input: RuntimeCompactionInput): PolicyResult<RuntimeEffect> | Promise<PolicyResult<RuntimeEffect>>;
    onSessionDeleted?(sessionId: string): void;
}
export declare function createCompactionSessionPolicy(compactionPreserver?: {
    capture: (sessionId: string) => Promise<void>;
    restore: (sessionId: string) => Promise<void>;
    clearSession: (sessionId: string) => void;
} | null): CompactionSessionPolicy;