/** 计量面的 `event` 词表(顺序 = HELP 行里的出现顺序)。 */
export declare const PERMISSION_RULE_EVENT_TABLE: readonly [{
    readonly event: "persisted_rule_allowed";
    readonly meaning: "a persisted allow rule authorized the call and nobody was asked";
}, {
    readonly event: "rule_store_unreadable";
    readonly meaning: "the rule store failed to read, so the call was adjudicated with ZERO rules (expect an approval storm whose cause is the store, not the model)";
}, {
    readonly event: "read_only_allowed";
    readonly meaning: "the engine's read-only shell verdict cleared an ask that was NOT an operator-written rule (core decisionReason \"read_only\"; an operator-declared ask carries matchedAskRule and is never cleared this way)";
}];
/** 词表里的一个词(闭集)。 */
export type PermissionRuleEventWord = (typeof PERMISSION_RULE_EVENT_TABLE)[number]["event"];
/** 这一帧是否进 `permission_rule_events_total`(判别式与词表同源,不再手抄第二串 `===`)。 */
export declare function isPermissionRuleEventKind(kind: string): boolean;
/** 帧名 → `event` 标签值。调用方须先过 {@link isPermissionRuleEventKind}。 */
export declare function permissionRuleEventWordOf(kind: string): string;
/** `/metrics` 的 HELP 行文案(从词表派生 —— 加词自动出现,不存在「第二份会漂的散文」)。 */
export declare function buildPermissionRuleEventsHelp(): string;
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