/**
 * Leading-indicator jsonl writer/reader (v1.1).
 *
 * Per v1.1 PRD §14. The daily `crons/leading-indicator.md` cron
 * computes 5 indicators over 1d + 7d windows and appends one line to
 * `<org>/memory/leading-indicators.jsonl`. This module is the typed
 * interface for that file — the cron prompt writes through here,
 * the Chief RETROSPECT stage (loop engineering) reads from here.
 *
 * Append-only by design: each daily run produces exactly one line. The
 * file is intentionally never rotated (PRD §15.1) — long-horizon trend
 * tracking is the entire point.
 */
export interface IndicatorSnapshot {
    /** Conversation → workflow/goal conversion rate (0..1). */
    conversion_to_task_rate: number;
    /** Mergeable PR rate among auto-produced PRs (0..1). */
    auto_pr_success_rate: number;
    /** Count of autonomous goal cycles completed without user intervention. */
    autonomous_goal_cycles: number;
    /** Consecutive release days. */
    shipping_streak_days: number;
    /** Average confidence score across PM hypotheses (0..100). */
    avg_confidence_score: number;
}
export interface LeadingIndicatorEntry {
    /** ISO 8601 timestamp when the snapshot was taken. */
    ts: string;
    /** Last-24h window. */
    window_1d: IndicatorSnapshot;
    /** Trailing-7d window. */
    window_7d: IndicatorSnapshot;
    /** Pointers to ledger / archive entries that supplied the numbers. */
    evidence_refs: string[];
}
export interface LeadingIndicatorsOpts {
    /** Org root, e.g. `<workspace>/<org>/`. */
    orgRoot: string;
}
/** Append one snapshot to the org's leading-indicators.jsonl. */
export declare function appendEntry(opts: LeadingIndicatorsOpts, entry: LeadingIndicatorEntry): void;
/**
 * Read all snapshots, optionally limited to entries newer than `sinceIso`.
 * Returns chronological order (oldest first). Malformed lines are skipped.
 */
export declare function readEntries(opts: LeadingIndicatorsOpts, sinceIso?: string): LeadingIndicatorEntry[];
/**
 * Latest entry, or null if the file is empty/missing. Used by the Chief
 * RETROSPECT stage to compare against the prior period.
 */
export declare function latestEntry(opts: LeadingIndicatorsOpts): LeadingIndicatorEntry | null;