/**
 * Per-session abort flags for sync bash_watch waits.
 *
 * When a user sends a message while the agent is blocked in a sync
 * bash_watch wait, the `chat.message` hook sets an abort flag for that
 * session. The sync wait poll loop checks the flag each iteration and
 * on abort: (1) stops blocking, (2) auto-registers the equivalent async
 * watch so the completion/pattern notification still arrives, (3) returns
 * text telling the agent the wait converted to async.
 *
 * Edge cases:
 * - The flag is cleared at sync-wait start so stale flags from previous
 *   turns don't insta-abort a new wait.
 * - A wait that already matched/exited wins over abort (the flag is
 *   checked only at the top of the poll loop, after match/exit checks).
 * - Subagent sessions behave identically — the flag is keyed by sessionID.
 */
/** Signal that a sync watch for this session should abort. */
export declare function signalSyncWatchAbort(sessionID: string | undefined): void;
/** Clear any stale abort flag at the start of a new sync wait. */
export declare function clearSyncWatchAbort(sessionID: string | undefined): void;
/** Check whether the abort flag is set for this session. Does NOT clear it. */
export declare function isSyncWatchAborted(sessionID: string | undefined): boolean;
/** Test-only: reset all abort flags. */
export declare function __resetSyncWatchAbortForTests(): void;
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