export type CachedExecutable = 'claude' | 'brain' | 'agency' | 'copilot' | 'codex' | 'yeaft' | 'pi';
export type ResolvedExecPaths = Partial<Record<CachedExecutable, string>>;
/**
 * Warm the executable path cache.  Call once at process startup:
 * - In foreground (interactive) mode the full user PATH is available, so
 *   `resolveViaWhich` will find tools in non-standard locations.
 * - In daemon mode the foreground process passes resolved paths via
 *   `AGENTLINK_CACHED_*` env vars; this function seeds the cache from those.
 */
export declare function warmExecPaths(initialPaths?: ResolvedExecPaths): void;
/**
 * Return env vars that should be spread into the daemon child's spawn env
 * so the cached paths cross the process boundary.
 */
export declare function getCachedPathEnvVars(): Record<string, string>;
export declare function getResolvedExecPaths(): ResolvedExecPaths;
export declare function getCachedExecutablePath(name: CachedExecutable): string | null;
export declare function resolveExecutablePath(name: CachedExecutable): string | null;
export declare function resetCachedExecutablePath(name: CachedExecutable): void;
export declare function isWindows(): boolean;
export declare function getDefaultClaudeCodePath(): string;
export declare function getCleanEnv(): NodeJS.ProcessEnv;
export interface ResolvedCommand {
    command: string;
    prefixArgs: string[];
    spawnOpts: Record<string, unknown>;
}
export declare function resolveWindowsNpmWrapper(commandPath: string): ResolvedCommand | null;
export declare function resolvePiCommand(): ResolvedCommand;
export declare function resolveYeaftCommand(): ResolvedCommand;
/**
 * Resolve the claude executable into spawn-ready components.
 * On Windows npm installs, parses the .cmd wrapper to call node directly,
 * avoiding cmd.exe flash and PowerShell execution policy issues.
 */
export declare function resolveClaudeCommand(): ResolvedCommand;
/**
 * Resolve the brain executable into spawn-ready components.
 * Brain is installed at ~/.brain/bin/brain(.cmd) — daemon processes may not
 * have it on PATH, so we check well-known locations first.
 */
export declare function resolveBrainCommand(): ResolvedCommand;
export declare function resolveAgencyCommand(prefixArgs?: string[]): ResolvedCommand;
/**
 * Pipe an AsyncIterable of messages into a child stdin as JSON lines.
 */
export declare function streamToStdin(stream: AsyncIterable<unknown>, stdin: NodeJS.WritableStream, abort?: AbortSignal): Promise<void>;