/**
 * Git hooks commands: hooks:install, hooks:uninstall, hooks:status
 *
 * Integrates tx graph verification with git post-commit hooks for
 * automatic verification after refactors.
 */
import { Effect } from "effect";
import { type Flags } from "../utils/parse.js";
/** Default configuration for .txrc */
export interface TxrcConfig {
    hooks?: {
        enabled?: boolean;
        fileThreshold?: number;
        highValueFiles?: string[];
        verifyOnCommit?: boolean;
    };
}
/**
 * Validate a file pattern for safe embedding in generated bash scripts.
 * Rejects patterns containing shell metacharacters that could enable
 * command injection when interpolated into grep -qE '...' expressions.
 */
export declare function isValidHookPattern(pattern: string): boolean;
/**
 * Read .txrc configuration file.
 * Returns default config if file doesn't exist.
 */
export declare function readTxrc(projectDir: string): TxrcConfig;
/**
 * Write .txrc configuration file.
 */
export declare function writeTxrc(projectDir: string, config: TxrcConfig): void;
/**
 * Find git root directory from current directory.
 */
export declare function findGitRoot(startDir: string): string | null;
/**
 * Generate the post-commit hook script content.
 */
export declare function generatePostCommitHook(config: TxrcConfig): string;
/**
 * tx hooks:install [--force] [--threshold <n>] [--high-value <patterns>]
 * Install post-commit hook for anchor verification
 */
export declare const hooksInstall: (_pos: string[], flags: Flags) => Effect.Effect<void, never, never>;
/**
 * tx hooks:uninstall
 * Remove post-commit hook
 */
export declare const hooksUninstall: (_pos: string[], flags: Flags) => Effect.Effect<void, never, never>;
/**
 * tx hooks:status [--json]
 * Show current hook status
 */
export declare const hooksStatus: (_pos: string[], flags: Flags) => Effect.Effect<void, never, never>;
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