/**
 * Persistent attempt counter for the iterate escalation guard.
 *
 * Tracks how many caller-visible times each review thread has been dispatched to
 * the fix_code handler without being resolved. Body edits reset the count.
 *
 * State lives in `$TMPDIR/pr-shepherd-state/<owner>-<repo>/<pr>/fix-attempts.json`.
 */
export interface FixAttemptsState {
    /** HEAD SHA at the time the counts were last written, retained for observability/compatibility. */
    headSha: string;
    /** Map from thread ID → number of fix_code dispatches that included this thread. */
    threadAttempts: Record<string, number>;
    /** Map from thread ID → body hash used for the associated attempt count. */
    threadBodyHashes?: Record<string, string>;
}
interface StateKey {
    owner: string;
    repo: string;
    pr: number;
}
/** Read the current attempt state. Returns null on miss. */
export declare function readFixAttempts(key: StateKey): Promise<FixAttemptsState | null>;
/** Write attempt state (fire-and-forget — never throws). */
export declare function writeFixAttempts(key: StateKey, state: FixAttemptsState): Promise<void>;
export {};