export type MemoryMode = "off" | "on";
export declare const DEFAULT_REVIEW_MODEL = "gpt-5-mini";
export declare const DEFAULT_MIN_MESSAGES = 4;
export declare const DEFAULT_MEMORY_NOTE_TITLE_CAP = 12;
export declare const DEFAULT_MEMORY_NOTE_CHAR_CAP = 1200;
export declare const DEFAULT_MEMORY_TOPIC_CAP = 10;
export declare const DEFAULT_MEMORY_TOPIC_CHAR_CAP = 800;
export declare const DEFAULT_MEMORY_DIRECTIVE_CAP = 12;
export declare const DEFAULT_MEMORY_DIRECTIVE_CHAR_CAP = 1200;
export declare const DEFAULT_MEMORY_NOTE_AUTO_KEEP = 0;
export interface MemoryConfig {
    memoryMode: MemoryMode;
    memoryReviewModel: string;
    memoryReviewMinMessages: number;
    memoryNoteTitleCap: number;
    memoryNoteCharCap: number;
    memoryTopicCap: number;
    memoryTopicCharCap: number;
    memoryDirectiveCap: number;
    memoryDirectiveCharCap: number;
    memoryNoteAutoKeep: number;
}
export type MemoryConfigKey = "memoryMode" | "memoryReviewModel" | "memoryReviewMinMessages" | "memoryNoteTitleCap" | "memoryNoteCharCap" | "memoryTopicCap" | "memoryTopicCharCap" | "memoryDirectiveCap" | "memoryDirectiveCharCap" | "memoryNoteAutoKeep";
export interface ReadConfigOptions {
    /** Override the home dir (defaults to os.homedir()); used in tests. */
    homeDir?: string;
}
export interface SetConfigOptions extends ReadConfigOptions {
    /** "project" (default) writes .omp/config.json under ompRoot(cwd); "global"
     *  writes ~/.omp/config.json. */
    scope?: "project" | "global";
}
export declare function readMemoryConfig(cwd: string, opts?: ReadConfigOptions): MemoryConfig;
/** Persist a single memory key, preserving all other keys in that file. Atomic.
 *  Writes the project file by default, or the global ~/.omp file with scope. */
export declare function setMemoryConfigValue(cwd: string, key: MemoryConfigKey, value: string, opts?: SetConfigOptions): void;
/** Remove a key from one scope's config file (atomic; no-op if absent). Used so
 *  a global `memory-mode` write isn't silently shadowed by a stale PROJECT key —
 *  readMemoryConfig merges project OVER global, so the project copy must go. */
export declare function unsetMemoryConfigValue(cwd: string, key: MemoryConfigKey, opts?: SetConfigOptions): void;
/** Persist several memory keys in ONE atomic read-modify-write, so enabling
 *  memory never leaves `memoryMode=on` paired with a stale model. */
export declare function setMemoryConfigValues(cwd: string, entries: Partial<Record<MemoryConfigKey, string>>, opts?: SetConfigOptions): void;