/**
 * Helpers for managing the squad-state .gitignore marker block.
 *
 * When the state backend is 'two-layer' or 'orphan', .squad/decisions.md
 * and .squad/agents/history.md are owned by the squad-state orphan branch.
 * Adding them to .gitignore prevents accidental staging via git add .,
 * git add -A, IDE "stage all", or git commit -am -- defense-in-depth
 * complement to the pre-commit hook installed by squad upgrade --state-backend.
 *
 * The block is delimited by marker comments so it can be reliably added and
 * removed without touching unrelated .gitignore content.
 */
import type { StorageProvider } from '../storage/index.js';
export declare const SQUAD_STATE_GITIGNORE_OPEN_MARKER = "# Squad: state owned by squad-state branch (two-layer/orphan backend)";
export declare const SQUAD_STATE_GITIGNORE_CLOSE_MARKER = "# /Squad: state owned by squad-state branch";
/**
 * Append the squad-state marker block to .gitignore if not already present.
 *
 * Idempotent: if the opening marker already exists in the file, this is a
 * no-op. Returns true if the block was added, false if it was already present.
 */
export declare function addSquadStateGitignoreBlock(gitignorePath: string, storage: StorageProvider): boolean;
/**
 * Remove the squad-state marker block from .gitignore if present.
 *
 * Finds the opening and closing marker lines and removes all lines between
 * them (inclusive), plus one leading blank line in what follows if present.
 * Returns true if the block was removed, false if it was not present.
 */
export declare function removeSquadStateGitignoreBlock(gitignorePath: string, storage: StorageProvider): boolean;
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