/**
 * Revert Chain Walker — collects merge-commit SHAs from a receipt point forward.
 *
 * Walks the sentient audit log (NDJSON) starting at `fromReceiptId` and
 * collects every `kind:'merge'` event that was appended at or after the
 * specified receipt. Events of other kinds (baseline, verify, abort, etc.)
 * are silently skipped.
 *
 * The result is ordered chronologically (oldest first) so the caller can
 * feed the commit list directly to `git revert`.
 *
 * Delegates chain traversal to {@link walkChainFrom} from `chain-walker.ts`
 * (T1025) to avoid duplicating Merkle-walk logic.
 *
 * @see DESIGN.md §8 T1012-S1
 * @task T1036
 */
import type { MergeEvent } from './events.js';
/**
 * Result of {@link collectMergeCommits}.
 */
export interface CollectMergeCommitsResult {
    /** Commit SHAs referenced by `kind:'merge'` events, oldest first. */
    commits: string[];
    /** The merge events that were collected. */
    events: MergeEvent[];
    /**
     * Whether at least one non-sentient commit author was detected.
     *
     * This is a passive warning flag set by the executor — the walker itself
     * does not check git authorship. The executor populates this after
     * running git-log on the range.
     */
    humanCommitDetected: boolean;
}
/**
 * Collect all `kind:'merge'` events (and their commit SHAs) that were logged
 * at or after `fromReceiptId` in the sentient audit log.
 *
 * The walk is purely log-based — it does NOT access the git repository. The
 * caller is responsible for validating commit reachability.
 *
 * @param projectRoot - Absolute path to the CLEO project root.
 * @param fromReceiptId - The `receiptId` of the starting event (inclusive).
 * @returns Merge commits and events after the receipt, oldest first.
 * @throws With message prefix `E_RECEIPT_NOT_FOUND` if `fromReceiptId` is absent in the log.
 *
 * @example
 * ```ts
 * import { collectMergeCommits } from '@cleocode/core/sentient/revert-walker.js';
 *
 * const { commits, events } = await collectMergeCommits(projectRoot, 'ABC123receiptId');
 * // commits = ['sha1...', 'sha2...', 'sha3...'] ordered oldest first
 * ```
 */
export declare function collectMergeCommits(projectRoot: string, fromReceiptId: string): Promise<CollectMergeCommitsResult>;
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