/**
 * Drift Scanner
 *
 * Detects state drift where actual codebase diverges from governance patterns.
 * Scans file content against anti-pattern rules defined in blessed patterns.
 *
 * Extracted from Charter Cloud (ADR-001).
 *
 * Note: In the Cloud version, patterns are fetched from D1. In the Kit version,
 * patterns are provided directly (loaded from .charter/patterns/ by the CLI).
 */
import type { Pattern, DriftReport } from '@stackbilt/types';
/**
 * Scan files for governance violations (drift) against provided patterns.
 *
 * @param files - Map of filename to file content
 * @param patterns - Active blessed-stack patterns to check against
 * @returns Drift report with score and violations
 */
export declare function scanForDrift(files: Record<string, string>, patterns: Pattern[]): DriftReport;
/**
 * Extract template literal bodies from a source file.
 *
 * For .ts, .tsx, .js, and .mjs files, finds all backtick template literal
 * bodies and returns them as a map of virtual filenames to extracted content.
 * Virtual filenames have the format: `filename[template:N]`
 *
 * Handles nested backticks conservatively via non-greedy matching.
 * Short template literals (≤20 chars) are skipped as trivially uninteresting.
 *
 * @param content - File content to extract from
 * @param filename - Filename used to determine extension and virtual names
 * @returns Map of virtual filename → extracted template body
 */
export declare function extractTemplateLiterals(content: string, filename: string): Record<string, string>;
/**
 * Extract testable regexes from anti-pattern text.
 *
 * Supports:
 * - Regex literals: /pattern/flags
 * - Code tokens: `keyword`
 */
export declare function extractRules(antiPatternText: string): RegExp[];
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