/**
 * `bare-ac-in-tests` (report tier): a test that cites a criterion without naming its
 * instance (doctor-flags-bare-ac-in-tests/AC-2, doctor-flags-bare-ac-in-tests/AC-3,
 * doctor-flags-bare-ac-in-tests/AC-5).
 *
 * A bare `AC-n` counts toward coverage only while exactly one instance defines id n
 * (`traceability/matrix.ts`). It reads as fine on the day it is written and stops counting,
 * with nothing failing, the day a second instance defines the same id. `lessons.md` records
 * that five times. The gate warns only once the id is already ambiguous; this names every
 * bare reference before it gets there, so the registry is deliberately not consulted.
 *
 * **Same files as the gate.** The globs and the scanner are the gate's own, not a copy, so
 * doctor and the gate cannot disagree about which files count. Scanner warnings (rejected
 * globs, skipped files) are left to the gate: one condition, one voice.
 *
 * **Why `report`.** The remedy is choosing which instance a reference means, which doctor
 * cannot know, and a confirm tier would turn doctor's exit code red
 * (doctor-flags-bare-ac-in-tests/AC-3).
 *
 * **Capped at 20 lines** (doctor-flags-bare-ac-in-tests/AC-5). Uncapped, this repo printed
 * 862 lines on every doctor and update run, and a doctor block that scrolls is one nobody
 * reads. The header still counts every line and the tail says how many are not shown, as
 * `knowledge-stale-sources` does. Lines holding several ids print once with all of them.
 *
 * Reads `ctx.projectRoot`, not the primary checkout: test files are committed, so a branch is
 * judged on its own tree, as `knowledge-stale-sources` is.
 */
import type { Migration } from '../types.js';
/** Fixed, not configurable: requirements rule out a new config key. */
export declare const MAX_LISTED_LINES = 20;
/** One test line holding at least one bare reference. */
export interface BareReferenceLine {
    /** Posix, project-root-relative — as the scanner emits it. */
    path: string;
    line: number;
    /** Ids on that line, in the order they appear. */
    ids: number[];
}
/**
 * Every test line holding a bare reference, in scan order — sorted path, then line — so two
 * runs over one tree print the same report.
 */
export declare function bareReferencesInTests(projectRoot: string): BareReferenceLine[];
export declare const bareAcInTests: Migration;
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