import type { NativeExternalDrift, NativeSnapshotProjection } from './native-verification-scope.js';
import type { NativeWorkspaceGitProvenance } from './native-workspace.js';
import type { NativeDeclaredArtifact } from './native-verification-scope.js';
/**
 * Prove that a subset of baseline/current changes is a fast-forward of the target branch rather
 * than an implementation edit. Any uncertainty simply returns no evidence for that path; the
 * normal Native partial-scope path remains responsible for asking for a decision.
 */
export declare function detectNativeGitExternalDrift(options: {
    projectRoot: string;
    provenance: NativeWorkspaceGitProvenance;
    baseline: Pick<NativeSnapshotProjection, 'complete' | 'entries'>;
    current: Pick<NativeSnapshotProjection, 'complete' | 'entries'>;
    declaredArtifacts: readonly NativeDeclaredArtifact[];
}): NativeExternalDrift | null;
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