/**
 * sliceToBacktrackTrace — serialize a footprintjs VARIABLE SLICE
 * (`sliceToJSON(sliceForKey(...))` from `footprintjs/trace`) into the
 * BacktrackTrace shape agentThinkingUI's <BacktrackView>/<BacktrackOverlay>
 * renders.
 *
 * The sibling of {@link toBacktrackTrace}: that one maps a LOCALIZER REPORT
 * (scored suspects, ablation verdicts); this one maps a STRUCTURAL SLICE —
 * the exact dependency chain behind one variable, with no influence claims
 * at all. Same board, honestly weaker chips:
 *
 *   - `mode` is ALWAYS 'correlational' — a slice is exact STRUCTURE, but it
 *     never tested influence; the default modeLabel says exactly that.
 *   - every card is `upperBound: true` (the UI's hatched meter + star): the
 *     score is 1/(1+depth) — hop PROXIMITY, a deterministic layout aid, not
 *     evidence. The honesty lines state the formula so nobody reads it as
 *     influence.
 *   - slice honesty rides along verbatim: reads-coverage warning
 *     (readTracking off), truncation, per-node incomplete-sources counts,
 *     and honest ABSENCE — a missing slice renders an empty board whose
 *     honesty lines say why ('never written' → initial state / frozen args /
 *     closure), never a fabricated suspect.
 *
 * Pure mapping, no UI dependency, framework-agnostic JSON on both sides —
 * the human and the LLM triage the SAME artifact (the parity loop: an agent
 * emits this, a person confirms or overrides on the board).
 */
import type { SliceJSON } from 'footprintjs/trace';
import type { BacktrackTrace } from './toBacktrackTrace.js';
export interface SliceToBacktrackTraceOptions {
    /** The visible outcome being questioned (the board's answer bubble). */
    readonly answer: {
        readonly text: string;
        readonly label?: string;
        readonly tone?: 'error' | 'question';
    };
    /** Headline question. Default: `Why is '<key>' what it is?`. */
    readonly claim?: string;
    /** How the anchor writer renders: rule diamond or LLM brain. Default 'rule'. */
    readonly decidedAtKind?: 'llm' | 'rule';
    /** Override the mode chip label. */
    readonly modeLabel?: string;
    readonly agent?: string;
    readonly model?: string;
    /** Max suspect cards. Default 6. The rest fold into one disclosed line. */
    readonly maxSuspects?: number;
}
/**
 * Serialize a variable slice for agentThinkingUI's BacktrackView. See the
 * module doc — structural honesty is the whole design.
 */
export declare function sliceToBacktrackTrace(json: SliceJSON, opts: SliceToBacktrackTraceOptions): BacktrackTrace;
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