import type { RetrievalGateDecision, RetrievalExcludedDomain, RetrievalIntent, RetrievalLevel } from '../contracts/retrieval-gate.js';
export type { RetrievalGateDecision, RetrievalExcludedDomain, RetrievalGateSignals, RetrievalGenerationDebugSignals, RetrievalGenerationIntent, RetrievalIntent, RetrievalLevel, RetrievalTargetDomainHint, } from '../contracts/retrieval-gate.js';
export type RetrievalGateInput = {
    /** The user's prompt or task description. Required. */
    prompt: string;
    /** Pre-classified intent. If absent, the gate derives it from the prompt. */
    intent?: RetrievalIntent;
    /** Caller-known signal: a PR diff is available for analysis. */
    hasPrDiff?: boolean;
    /** Caller-known signal: specific file paths the prompt is about. */
    mentionedPaths?: ReadonlyArray<string>;
    /** Caller-known signal: specific symbols the prompt is about. */
    mentionedSymbols?: ReadonlyArray<string>;
    /** Caller-known signal: the prompt embeds a stack trace or error text. */
    hasStackTrace?: boolean;
    /**
     * Manual override. When set, bypasses all heuristics and the decision is
     * returned with reason `'manual override'`. The acceptance criteria of
     * #75 require the gate be overridable via CLI/MCP options.
     */
    manualOverride?: RetrievalLevel;
};
export declare function classifyRetrievalLevel(input: RetrievalGateInput): RetrievalGateDecision;
export declare function extractPromptExclusions(prompt: string): {
    excludedTerms: string[];
    excludedPathHints: string[];
    excludedDomains: RetrievalExcludedDomain[];
    positivePrompt: string;
};