import type { Profile } from '@manehorizons/cadence-types';
/**
 * Phase 26.2 — CLAUDE.md scaffold. `cadence init` writes a CLAUDE.md at the
 * repo root with a managed region delimited by these markers. `cadence init
 * --claude-md` regenerates ONLY the managed region, preserving any content
 * the user added outside it. A CLAUDE.md with no markers is treated as
 * fully user-owned and left untouched.
 */
export declare const MANAGED_START = "<!-- cadence:managed:start -->";
export declare const MANAGED_END = "<!-- cadence:managed:end -->";
export interface ClaudeMdOptions {
    projectName: string;
    gateProfile: Profile;
    preset: string;
    regenerateCommand?: string;
}
/** The managed block (markers inclusive). Regenerated verbatim by `--claude-md`. */
export declare function renderManagedBlock(opts: ClaudeMdOptions): string;
/** Full default file when no CLAUDE.md exists yet. */
export declare function renderClaudeMd(opts: ClaudeMdOptions): string;
/** Full default file for Codex/OpenAI agent instruction discovery. */
export declare function renderAgentsMd(opts: ClaudeMdOptions): string;
export type MergeMode = 'created' | 'regenerated' | 'preserved';
export interface MergeResult {
    content: string;
    mode: MergeMode;
}
/**
 * Merge a fresh managed block into an existing CLAUDE.md.
 *
 * - no existing file (empty/whitespace) → full render (`created`)
 * - both markers present → replace the inclusive span, keep prefix/suffix
 *   byte-for-byte (`regenerated`)
 * - content present but markers absent → return unchanged (`preserved`)
 */
export declare function mergeManagedBlock(existing: string | null, opts: ClaudeMdOptions): MergeResult;
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