/**
 * Language detection for the `graph` CLI. Scans the project root for
 * known language marker files (tsconfig.json, Cargo.toml, pyproject.toml,
 * etc.) and returns the set of canonical adapter ids that apply. All
 * matched adapters apply simultaneously (polyglot per spec D6).
 *
 * Detection is filtered by the registry — markers whose adapter isn't
 * registered in the current CLI bootstrap are reported in
 * `matchedMarkers` but excluded from `adapterIds`.
 */
import { type LanguageRegistry } from '@opensip-cli/core';
interface DetectionMatch {
    readonly marker: string;
    readonly adapterId: string;
}
/**
 * Result of a project-root language scan. `adapterIds` is the
 * authoritative list of adapters the CLI should query; `matchedMarkers`
 * is diagnostic context (which marker files fired, useful for error
 * messages when an adapter is unregistered).
 */
export interface DetectionResult {
    /** Canonical adapter ids of the languages detected at `rootDir`. */
    readonly adapterIds: readonly string[];
    /** Marker files actually found, paired with the adapter they identified. */
    readonly matchedMarkers: readonly DetectionMatch[];
}
/**
 * Scan the project root for known language marker files. Returns ALL
 * matched adapter ids (polyglot supported). Only adapters registered
 * with the given registry are surfaced — if an adapter isn't registered,
 * its markers are still recorded in `matchedMarkers` but filtered from
 * `adapterIds` (defensive against partial CLI bootstrap configurations).
 */
export declare function detectLanguages(rootDir: string, registry: LanguageRegistry): DetectionResult;
export {};
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