/**
 * Strip ANSI terminal-control sequences from a string so text pattern-matching
 * (blocking-prompt detection, an exited session's last-output tail) sees the
 * words a human would read rather than raw control bytes.
 *
 * Not exhaustive of every escape a TUI could emit, but covers what real
 * captures show in practice: OSC (window title), CSI (cursor moves, SGR
 * colour/style), and charset/keypad-mode selects. Lives here — rather than in
 * one adapter — because more than one consumer needs it (the Codex adapter's
 * trust-prompt detection and SessionManager's exit-tail sanitizer).
 */
export declare function stripAnsi(text: string): string;
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