/**
 * GateRule SPI — interface for pluggable gate evaluation rules.
 *
 * Each rule declares which stages it applies to and how to evaluate
 * a set of artifacts. The GateEngine collects applicable rules per stage
 * and aggregates their results into a RuleVerdict.
 */
import type { ArtifactRef, RuleResult, StageId } from '../types/index.js';
export interface GateRule {
    /** Unique rule identifier. */
    readonly id: string;
    /** Stages this rule applies to. */
    readonly appliesTo: StageId[];
    /** Evaluate artifacts and return a pass/fail result. */
    evaluate(artifacts: ArtifactRef[]): RuleResult;
}
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