import type { Formatter } from '../types.js';
/**
 * oc/10: TTY-only path shortener. EXPORTED so other modules can opt in,
 * but JSON/JSONL emitters MUST NOT call this — machine output always uses
 * absolute paths so cross-command joins (list → info → read) dedup
 * correctly on a single key. The `~` prefix is also lossy when $HOME is
 * unusual (CI runners, container layers, root-owned homes).
 */
export declare function shortenForTty(p: string): string;
/**
 * oc/18: deterministic TTY detection that honors the standard env vars.
 *
 *   NO_COLOR=<anything>   → false (no colors / not a TTY for rendering)
 *   FORCE_COLOR=<truthy>  → true  (caller insists on color output)
 *   SESSIONR_AGENT=1      → false (agent harness — never assume TTY)
 *   else                  → process.stdout.isTTY ?? false
 *
 * Existing call sites (`process.stdout.isTTY ?? false`) lie in tmux/CI/
 * supervisor environments where isTTY toggles based on PTY allocation,
 * not on whether the consumer wants color. Routing through this helper
 * gives every formatter a single, env-aware answer.
 */
export declare function isInteractiveTty(): boolean;
export declare function createTtyFormatter(): Formatter;
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