import type { BaselineViolation, EslintFinding, EslintRunOptions, EslintRunResult, EslintState, EslintSummary, RedLineEntry } from './eslint-runner-types.js';
export declare function severityFor(value: unknown): 'error' | 'warn' | 'info';
export declare function summarize(findings: readonly EslintFinding[]): EslintSummary;
type DiffRange = {
    readonly file: string;
    readonly lines: readonly number[];
};
/**
 * Read `git diff HEAD --unified=0` and parse every `+` line as a
 * touched line number. Falls back to [] on any parse error so the
 * caller treats all findings as out-of-diff (no silent zero-result).
 */
export declare function resolveProjectRoot(cwd: string): string;
export declare function inDiff(filePath: string, line: number, ranges: readonly DiffRange[]): boolean;
export declare function loadBaseline(projectRoot: string, baselineFile: string): readonly BaselineViolation[];
export declare function matchBaseline(finding: EslintFinding, baseline: readonly BaselineViolation[], projectRoot: string): boolean;
export declare function aggregateRedLine(baseline: readonly BaselineViolation[]): readonly RedLineEntry[];
export declare const EMPTY_DIFF_RANGE: readonly DiffRange[];
export declare const EMPTY_REDLINE: readonly RedLineEntry[];
/**
 * eslint skips dot-paths by default (backlog §2.41): a hand-run over
 * `.husky/*.mjs` answers "File ignored by default" and exits 0, so a run that
 * examined nothing is indistinguishable from a clean one. Any path SEGMENT
 * starting with a dot (but not the `.`/`..` navigational segments) makes the
 * requested scope one eslint will not look at unaided.
 */
export declare function isDotPathScope(scope: string | undefined): boolean;
/** A message eslint emits for an entry it skipped instead of examining. */
export declare function isIgnoredMessage(message: string): boolean;
/** The §2.41 refusal text for an examined population of 0. */
export declare function emptyPopulationReason(scope: string | undefined, ignoredFiles: number): string;
export type EmptyDetail = {
    readonly reason?: string;
    readonly checkedFiles?: number;
    readonly ignoredFiles?: number;
};
export declare function emptyResult(state: EslintState, start: number, rawOutput: string, detail?: EmptyDetail): EslintRunResult;
export declare function buildEslintArgs(options: EslintRunOptions): string[];
export type { DiffRange };