export type HookEffectKind = "observation" | "response-shaping" | "guard-decision";
export type HookOperation = HookEffectKind | "durable-write";
export type HookEffectClassification = {
    hook: string;
    kind: HookEffectKind;
    durableWriteAllowed: false;
};
/**
 * Classifies known OpenCode hook effects according to the harness CQRS boundary.
 *
 * @param hook - OpenCode hook identifier.
 * @returns The hook effect classification used by tests and hook comments.
 */
export declare function classifyHookEffect(hook: string): HookEffectClassification;
/**
 * Rejects hidden durable writes from hook execution contexts.
 *
 * @param input - Hook and attempted operation.
 * @throws A `[Hivemind]` error when a hook attempts a durable write.
 */
export declare function assertHookWriteBoundary(input: {
    hook: string;
    operation: HookOperation;
}): void;
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