/**
 * @fileoverview Output parser for `roy-agent act` subprocess stdout.
 *
 * `roy-agent act -s <sessionId> <message>` writes human-friendly text to
 * stdout with a leading/trailing sentinel pair:
 *
 *     [TaskEventHandler] Started
 *     ... LLM streaming text ...
 *     [TaskEventHandler] Stopped
 *
 * We do not want the sentinel lines to leak into the chat UI, and we want
 * to strip ANSI colour codes that the CLI uses to highlight text. This
 * module is the single place that knows about that format — every other
 * layer treats output as an opaque byte stream.
 *
 * v2.5.0: kept tiny so we can unit-test the contract in isolation.
 */
export declare const SENTINEL_START = "[TaskEventHandler] Started";
export declare const SENTINEL_STOP = "[TaskEventHandler] Stopped";
/** Strip CSI / SGR ANSI colour codes from a chunk of stdout. */
export declare function stripAnsi(input: string): string;
/** Strip the literal sentinel lines (start + stop). Case-sensitive. */
export declare function stripSentinels(input: string): string;
/** Convenience: strip ANSI + sentinels + trim trailing newline. */
export declare function cleanStdout(raw: string): string;
//# sourceMappingURL=chat-output-parser.d.ts.map