import type { ContextSegmentRole, ContextSegmentType } from "../../shared/context-xray.js";
import type { EngineContentPart, EngineMessage } from "../engine/types.js";
export interface ContextSegment {
    segmentId: string;
    msgIndex: number;
    partIndex: number;
    role: ContextSegmentRole;
    type: ContextSegmentType;
    label: string;
    group: string;
    canonicalContent: string;
    hash: string;
    dupIndex: number;
    pairKey?: string;
    part: EngineContentPart;
}
export declare function computeSegments(messages: EngineMessage[]): ContextSegment[];
export declare function computeProtectedSegmentIds(messages: EngineMessage[]): Set<string>;
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