/** Base marker prefix to identify generated files (version-agnostic) */
export declare const GENERATED_MARKER_PREFIX = "<!-- Generated by agents-reverse-engineer";
/** Marker comment to identify generated AGENTS.md files */
export declare const GENERATED_MARKER: string;
/**
 * Check if an AGENTS.md file was generated by us (contains marker).
 * Uses prefix-based check to work across different versions.
 */
export declare function isGeneratedAgentsMd(filePath: string): Promise<boolean>;
/**
 * Write AGENTS.md for a directory with LLM-generated content.
 *
 * If a user-defined AGENTS.md exists (not generated by us), it will be
 * preserved as AGENTS.local.md. The user content is then prepended
 * verbatim above the generated content so AI agents see it first.
 *
 * With variant: writes to AGENTS.${variant}.md (no user-preservation needed).
 * Without variant: current behavior unchanged.
 *
 * @param dirPath - Directory to write AGENTS.md for
 * @param projectRoot - Project root for relative paths
 * @param content - LLM-generated AGENTS.md content
 * @param variant - Optional eval variant name (e.g., "claude.haiku")
 * @returns Path to written file
 */
export declare function writeAgentsMd(dirPath: string, _projectRoot: string, content: string, variant?: string): Promise<string>;
/**
 * Write a hub AGENTS.md that @-references the active eval variant.
 *
 * Handles AGENTS.local.md preservation (same as writeAgentsMd).
 *
 * @param dirPath - Directory to write AGENTS.md hub for
 * @param activeVariant - Variant name to reference (e.g., "claude.haiku")
 * @returns Path to written AGENTS.md hub
 */
export declare function writeAgentsMdHub(dirPath: string, activeVariant: string): Promise<string>;
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