/**
 * 多模型共识算法纯逻辑（零平台依赖）。
 * 从 oh-my-opencode-cohub/src/tools/council.ts 搬移 A 类 + B 类函数与常量。
 * C 类（依赖 @opencode-ai/sdk / @opencode-ai/plugin）不搬。
 */
/** 失败分类（搬自 quality.ts） */
export type FailureCategory = "timeout" | "empty" | "error" | "quality-low";
/** 重试决策结果（搬自 council.ts T2 decision table） */
export type RetryAction = "retry" | "needs-human" | "give-up" | "budget-exhausted";
/** 结构化摘要（搬自 council.ts CouncillorSummary） */
export interface CouncillorSummary {
    conclusions: string[];
    entities: string[];
}
/** 共识检测输入（搬自 council.ts ConsensusInput） */
export interface ConsensusInput {
    name: string;
    summary: CouncillorSummary;
}
/** 共识检测结果（搬自 council.ts ConsensusResult） */
export interface ConsensusResult {
    consensus: boolean;
    agreementScores: Record<string, number>;
    averageAgreement: number;
}
/**
 * 最小化 councillor 配置引用（搬自 council.ts CouncillorConfig 的结构等价接口）。
 * 仅保留 adaptiveKey 所需的字段。
 */
export interface CouncillorModelRef {
    model: string;
    variant?: string;
}
/**
 * 最小化 councillor 结果条目（搬自 council.ts 内部 CouncillorResult 的结构等价接口）。
 * 原类型未 export；此处定义为共享层兼容接口，供 formatCouncillorResults 等函数使用。
 */
export interface CouncillorResult {
    name: string;
    model: string;
    status: string;
    result?: string;
    error?: string;
    summary?: CouncillorSummary;
}
/** Per-category retry limits（empty 保留 legacy councillor_retries 默认） */
export declare const RETRY_LIMITS: Record<FailureCategory, number>;
export declare const CONCLUSION_MARKERS: string[];
export declare const ENTITY_MARKERS: string[];
export declare const STOPWORDS: Set<string>;
export declare const VARIANT_ORDER: readonly ["max", "high", "medium", "low"];
export declare function tokenize(text: string): string[];
/** Jaccard overlap between two token sets. */
export declare function jaccard(x: string[], y: string[]): number;
/** Downgrade a variant one step ("max" -> "high" -> "medium" -> "low" -> undefined). */
export declare function downgradeVariant(variant?: string): string | undefined;
/**
 * Parse "provider/model" reference.
 * Returns null if format is invalid.
 */
export declare function parseModelReference(model: string): {
    providerID: string;
    modelID: string;
} | null;
/**
 * Build a human-readable model composition string.
 * e.g. "expert1: gpt-4, expert2: claude-3"
 */
export declare function formatModelComposition(councillorResults: CouncillorResult[]): string;
/**
 * T8: 自适应参数表的 (strategy, agent) 键。
 * strategy 取 councillor 的 variant 档位（未配置时为 "default"），agent 取模型引用；
 * 与 tracker computeStats 的 (strategy, agent) 聚合维度对齐。
 */
export declare function adaptiveKey(config: CouncillorModelRef): string;
/**
 * Merge the user prompt with the optional councillor-specific prompt prefix.
 */
export declare function formatCouncillorPrompt(userPrompt: string, councillorPrompt?: string): string;
/**
 * Shared retry budget (T4): a total retry counter plus an elapsed-time cap.
 * Both runCouncillorWithRetry retries and serial extra rounds draw from it.
 */
export declare class RetryBudget {
    retriesLeft: number;
    readonly maxElapsedMs: number;
    readonly startedAt: number;
    constructor(maxTotalRetries: number, maxElapsedMs: number, startedAt?: number);
    elapsedMs(): number;
    expired(): boolean;
    /** Consume one retry slot; returns false when exhausted or expired. */
    consumeRetry(): boolean;
}
/** Map an error message to a failure category. */
export declare function classifyFailure(message: string): FailureCategory;
/**
 * Heuristically extract a structured summary (conclusion sentences + key
 * entity/decision sentences) from a councillor response text.
 */
export declare function extractCouncillorSummary(text: string): CouncillorSummary;
/**
 * Pairwise agreement between two summaries: 0.5 * conclusion overlap
 * + 0.5 * entity overlap (Jaccard on tokens).
 */
export declare function pairwiseAgreement(a: CouncillorSummary, b: CouncillorSummary): number;
/**
 * Compute consensus across councillor summaries.
 * Converged when >= ceil(2n/3) councillors have an average pairwise
 * agreement at or above the threshold.
 */
export declare function computeConsensus(inputs: ConsensusInput[], threshold: number): ConsensusResult;
/**
 * T2 retry decision table.
 * - consecutiveStreak >= 2 of the same category -> needs-human
 * - per-category retry limit reached            -> give-up
 * - shared budget exhausted                     -> budget-exhausted
 * - otherwise                                   -> retry
 */
export declare function decideRetryAction(category: FailureCategory, consecutiveStreak: number, categoryRetriesUsed: number, budgetAvailable: boolean, categoryLimit?: number): RetryAction;
/** Append retry guidance to the prompt based on the failure category. */
export declare function appendRetryContext(prompt: string, category: FailureCategory): string;
/**
 * Format all councillor results into a single structured text block that the
 * council agent can synthesize.
 */
export declare function formatCouncillorResults(originalPrompt: string, councillorResults: CouncillorResult[]): string;
/**
 * P1-4: 构建 serial 模式第二轮起的协商 prompt —— 将上一轮其他成员的意见
 * 注入，要求当前 councillor 回应并修正或坚持立场，驱动收敛。
 */
export declare function buildDeliberationPrompt(originalPrompt: string, previousRound: CouncillorResult[], currentName: string): string;
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