export declare const IS_WINDOWS: boolean;
export declare const IS_MACOS: boolean;
export declare const IS_LINUX: boolean;
/** Check if a command exists — cross-platform. */
export declare function commandExists(cmd: string): boolean;
/** Global config directory (~/.solosquad or %APPDATA%/solosquad). */
export declare function globalConfigDir(): string;
/**
 * npm global install command — chooses whether to prepend sudo by checking
 * the actual npm prefix's write permission (v1.0.3 fix).
 *
 * Pre-v1.0.3 unconditionally prepended `sudo` whenever the current process
 * was not root. That's wrong for nvm / fnm / asdf / Homebrew users whose
 * npm prefix lives inside their home dir (no sudo needed). The new check
 * runs `npm config get prefix` then `fs.accessSync(prefix, W_OK)` — when
 * the user can write to the prefix dir, no sudo is prepended. If anything
 * in that detection chain throws (command not found, prefix dir gone,
 * access denied), we fall back to `sudo` to keep the install command
 * usable on system-package installs (e.g. apt nodejs under /usr/local).
 */
export declare function npmGlobalInstallCmd(pkg: string): string;
/** Default repos base path per OS. */
export declare function defaultReposPath(): string;
/** Normalize line endings to LF. */
export declare function normalizeLine(content: string): string;
/**
 * v1.2.4 §A.4 — normalize a user-pasted filesystem path. The most common
 * mistake is copying a Windows path with surrounding quotes — PowerShell
 * and Explorer's "Copy as path" both add them — and the literal quotes
 * end up *in* the path argument, so `fs.existsSync` reports it missing.
 *
 * Rules (order matters):
 *   1. trim whitespace
 *   2. strip a single pair of surrounding " " or ' ' (only if balanced)
 *   3. trim whitespace again (paste sometimes leaves internal pads)
 *   4. leave the path as-is otherwise — `path.resolve` handles both
 *      `C:\foo\bar` and `/c/foo/bar` and mixed separators on Windows.
 *
 * Pure function — does not touch the filesystem. Caller is expected to
 * `path.resolve` + `fs.existsSync` after.
 */
export declare function normalizeUserPath(raw: string): string;
/** Parse JSONL content (CRLF-safe). */
export declare function parseJsonl<T = Record<string, unknown>>(content: string): T[];
/** Parse TSV content (CRLF-safe). */
export declare function parseTsv(content: string): Record<string, string>[];
/** Platform info string for diagnostics. */
export declare function platformInfo(): string;
/** Current shell name. */
export declare function shellName(): string;