import { type AgentRegistry, type AgentRoot, type AgentRootOptions } from './registry-builder.js';
/**
 * The nearest directory at or above `cwd` holding `.claude/agents` or
 * `.monomind`. The walk stops at the git root (inclusive) and never looks at
 * the home directory itself, whose `~/.monomind` is the user's global state,
 * not a project. Null when no project is found.
 */
export declare function findProjectRoot(cwd: string, home?: string): string | null;
/** Newest mtime (ms) of any agent `.md` under `roots` (directories count too,
 *  so a deleted file also marks the registry stale). 0 when there are none. */
export declare function newestAgentMtime(roots: (string | AgentRoot)[]): number;
export declare const registryPath: (root: string) => string;
/** True when `root`'s registry is missing or older than an agent definition. */
export declare function registryIsStale(root: string, opts?: AgentRootOptions): boolean;
/**
 * Rebuilds `root`'s registry when stale, synchronously, so a caller that reads
 * it next (`monomind pick`, MCP pick) never races a fire-and-forget build.
 * Returns the built registry, or null when it was already fresh. Never throws.
 */
export declare function ensureRegistry(root: string, opts?: AgentRootOptions): AgentRegistry | null;
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