/**
 * Describes an unknown-but-interesting workspace signal captured for review.
 */
export interface UnknownSignalEntry {
    id: string;
    path: string;
    fileName: string;
    category: "mcp-manifest" | "host-rule-folder" | "unfamiliar-package-dependency" | "plugin-manifest";
    confidence: "high" | "medium" | "low";
    evidence: string[];
    ambiguityNotes: string[];
    suggestedNextAction: "add-signature" | "add-source-mapping" | "ignore" | "quarantine" | "needs-research";
}
/**
 * Describes the unknown-signal report persisted by discovery.
 */
export interface UnknownSignalReport {
    schemaVersion: number;
    generatedAt: string;
    scanRoot: string;
    summary: {
        scannedFiles: number;
        signalCount: number;
        scanTruncated?: boolean;
        truncationReason?: string;
        scannedBytes?: number;
        byCategory: Record<UnknownSignalEntry["category"], number>;
    };
    signals: UnknownSignalEntry[];
}
/**
 * Writes a structured unknown-signal backlog report for workspace evolution.
 */
export declare function writeUnknownSignalReport(scanRoot: string, outputPath: string): Promise<UnknownSignalReport>;
/**
 * Builds structured unknown workspace signals from interesting but ambiguous evidence.
 */
export declare function buildUnknownSignalReport(scanRoot: string): Promise<UnknownSignalReport>;
declare function createSignal(idPath: string, fileName: string, category: UnknownSignalEntry["category"], confidence: UnknownSignalEntry["confidence"], evidence: string[], displayPath?: string): UnknownSignalEntry;
declare function collectUnfamiliarDependencyNames(fileName: string, filePath: string): Promise<string[]>;
declare function parsePackageJson(content: string): {
    dependencies?: Record<string, string>;
    devDependencies?: Record<string, string>;
    optionalDependencies?: Record<string, string>;
    peerDependencies?: Record<string, string>;
} | null;
declare function dedupeSignals(signals: UnknownSignalEntry[]): UnknownSignalEntry[];
declare function countByCategory(signals: UnknownSignalEntry[]): Record<UnknownSignalEntry["category"], number>;
/**
 * Exposes pure helpers for focused unknown-signal branch coverage.
 */
export declare const unknownSignalInternals: {
    KNOWN_PACKAGE_PREFIXES: readonly ["@types/", "@vitejs/", "eslint", "typescript", "vite", "react", "next", "vue", "svelte", "astro", "express", "fastify", "hono", "zod", "vitest", "jest", "playwright", "prettier"];
    createSignal: typeof createSignal;
    dedupeSignals: typeof dedupeSignals;
    collectUnfamiliarDependencyNames: typeof collectUnfamiliarDependencyNames;
    parsePackageJson: typeof parsePackageJson;
    countByCategory: typeof countByCategory;
};
export {};