import type { ResumeValidation, SessionEvent } from '../types/session.js';
/** Revalidate the latest persisted hash for every distinct observed path. */
export declare function validateResumeFileObservations(events: readonly SessionEvent[], projectRoot: string): Promise<ResumeValidation>;
/** Build the ephemeral system message injected into the first resumed turn. */
export declare function formatResumeValidationNotice(validation: ResumeValidation, projectRoot: string): string | null;
/**
 * Build the ephemeral system message injected when the resumed session had
 * tool calls still in flight (the previous run crashed or was interrupted
 * before their results were recorded). The interrupted `tool_use` blocks are
 * stripped from the reconstructed conversation by adjacency repair and are NOT
 * re-executed on resume — this notice simply makes the interruption visible so
 * the model can decide whether to retry the work. Returns null when nothing
 * was in flight.
 */
export declare function formatInterruptedToolNotice(pendingToolUseCount: number): string | null;
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