/**
 * Turbo-Cat™ (= Format-finder) — fills .faf slots from file-format evidence
 * across ~200 formats (the KNOWLEDGE_BASE). Restores the multi-ecosystem
 * manifest interrogation the v6.0 rewrite narrowed to README+Cargo+package.json.
 *
 * v6-native sync port (the v5 engine was async; sync integrates cleanly with
 * `auto`). Two-layer: (1A) config files in the project directory itself,
 * (1B) source extensions below it; priority-wins slot recommendations.
 *
 * Boundary: detection never looks above the project directory. A parent's
 * tsconfig.json, Cargo.toml or vercel.json is another project's evidence —
 * a monorepo package, a subfolder or a new folder under ~ must not inherit it.
 *
 * Used as the LOWEST-precedence filler in `auto`: v6's specific detection wins;
 * Turbo-Cat fills only the slots still empty (esp. non-npm stacks).
 */
/** A format actually discovered on disk (config-file layer; real files only). */
export interface DiscoveredFormat {
    fileName: string;
    /** Derived from the entry's primary slot family (deterministic — real
     *  knowledge surfaced, not invented): package-manager, language, framework,
     *  backend, database, ci-cd, hosting, build, … */
    category: string;
    priority: number;
}
export interface TurboCatResult {
    slotFills: Record<string, string>;
    frameworks: string[];
    confirmedCount: number;
    /** Option B (compose spec 2026-06-12): the per-format breakdown consumers
     *  display — surfaced so MCPs can DELETE their local format maps entirely. */
    discoveredFormats: DiscoveredFormat[];
    /** Deterministic lowercase signature, e.g. "typescript-react" ('unknown-stack' when bare). */
    stackSignature: string;
}
/** Scan formats → priority-wins slot recommendations. */
export declare function turboCatScan(projectDir: string): TurboCatResult;
/** Turbo-Cat slot fills shaped as a v6 .faf partial ({ project, stack }) for fillEmpties. */
export declare function turboCatSlots(projectDir: string): {
    project?: Record<string, string>;
    stack?: Record<string, string>;
};