import type { PRSignal, CISignal } from './types.js';
/** Fields to request from `gh pr view --json` */
export declare const GH_PR_JSON_FIELDS: readonly ["number", "additions", "deletions", "changedFiles", "comments", "reviews", "reviewDecision", "statusCheckRollup", "createdAt", "mergedAt"];
/** Build the `gh pr view` CLI command string */
export declare function buildGhCommand(prNumber: number): string;
/** Parse raw `gh pr view --json` output into a PRSignal */
export declare function parsePRJson(json: Record<string, unknown>): PRSignal;
/** Safe defaults for graceful degradation when PR data is unavailable */
export declare function emptyPRSignal(prNumber?: number): PRSignal;
/**
 * Merge PR check data with an existing CISignal.
 *
 * - Both exist: keep CI runner data (more granular), detect retry scenario
 *   (PR had failures but CI shows passing → increment retries)
 * - No existing CI: derive CISignal from PR check counts (runner='unknown')
 */
export declare function mergePRChecksWithCI(prSignal: PRSignal, existingCI?: CISignal): CISignal;
/**
 * Count checks that failed initially then succeeded (retry detection).
 * Looks at statusCheckRollup for checks with multiple runs where earlier runs failed.
 */
export declare function detectCheckRetries(statusCheckRollup: unknown): number;
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