import type { CompanionDiffReadResult, CompanionDiffReader } from '../../core/workflow/companion/diff-reader.js';
interface CompanionDiffLimits {
    readonly maxChangedFiles: number;
    readonly maxBlobBytes: number;
    readonly maxTotalInputBytes: number;
    readonly maxTemporaryBytes: number;
    readonly maxStdoutBytes: number;
    readonly maxStderrBytes: number;
    readonly maxSubprocesses: number;
    readonly timeoutMs: number;
}
interface CompanionDiffObservation {
    readonly afterFrozenIndex?: (root: string) => Promise<void>;
}
export declare class GitCompanionDiffReader implements CompanionDiffReader {
    private readonly observation;
    private readonly limits;
    constructor(limits?: Partial<CompanionDiffLimits>, observation?: CompanionDiffObservation);
    readBaselineSha(cwd: string, signal?: AbortSignal): Promise<string>;
    readDiff(cwd: string, baselineSha: string, signal?: AbortSignal): Promise<CompanionDiffReadResult>;
    private createRunner;
}
export {};
//# sourceMappingURL=companion-git-diff-reader.d.ts.map