/**
 * @fileoverview Coverage Checker Plugin (SPEC Section 8.4)
 *
 * Calculates quoted string coverage and reports gaps.
 *
 * Per PLG-*:
 * - PLG-1: Creates run-scope hooks
 * - PLG-2: Inspector may only modify diagnostics
 * - PLG-13: Use metricObserve for parallel aggregation
 *
 * @module plugins/coverage-checker
 */
import type { PipelinePlugin } from "./types.js";
/**
 * Calculates quoted string coverage.
 *
 * Per SPEC Section 8.4:
 * - Inspector plugin (observe only)
 * - Reports which parts of input are covered by extracted intents
 * - Helps identify missed content
 */
export declare const coverageCheckerPlugin: PipelinePlugin;
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