/**
 * SeoCitationGate — the deterministic, offline, pre-hub citation gate
 * (spec-20260715-ultimate-seo-suite, Sprint 10; ADR-3,
 * arch-20260715-ultimate-seo-agents-skills-architecture.md:279-295).
 *
 * Pure and total: no LLM, no egress, no filesystem, no clock. Imports
 * nothing beyond `./types.js`. Partitions findings by whether their
 * `citationUrl` is a well-formed primary-source URL — uncited findings are
 * dropped and NEVER reach the hub (Sprint 11) or a human.
 *
 * Naming note (see the sprint briefing §0): the contract (sc-10-3) spells
 * the method `filter`; the architecture and generatorNotes call it `apply`.
 * Both are provided — `filter` is an alias of the same implementation.
 */
import type { SeoFinding } from "./types.js";
/** Mirrors `SeoConfigSchema.blockThreshold` (config/schema.ts:697). */
export type SeoBlockThreshold = "never" | "any-uncited" | "critical-uncited";
export type CitationGateResult = {
    /** Findings with a well-formed primary-source citationUrl — the ONLY findings emitted downstream. */
    cited: SeoFinding[];
    /** Findings with an empty/malformed citationUrl — never reach the hub. */
    dropped: SeoFinding[];
    /** Fail-closed exit-2 signal, derived from `dropped` per `threshold`. */
    blocked: boolean;
};
export declare class SeoCitationGate {
    /**
     * Partitions `findings` into `cited`/`dropped` by citationUrl
     * well-formedness, then derives `blocked` from `threshold`. Pure and
     * total: identical input always yields identical output.
     */
    apply(findings: SeoFinding[], threshold: SeoBlockThreshold): CitationGateResult;
    /** Alias of `apply` — satisfies the contract's literal `.filter(...)` wording (sc-10-3). */
    filter: (findings: SeoFinding[], threshold: SeoBlockThreshold) => CitationGateResult;
}
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