import type { Board, Job } from "./model.js";
/** Artifact handoffs do not imply a start rule. An omitted rule remains unknown. */
export type Prerequisites = {
    kind: "all";
    inputs: string[];
} | {
    kind: "any";
    inputs: string[];
} | {
    kind: "unknown";
    inputs: string[];
} | {
    kind: "conditional";
    inputs: string[];
    condition: string;
};
export interface PrerequisiteContext {
    board?: Pick<Board, "artifacts">;
    job?: Pick<Job, "inputs">;
}
/** Validate explicit declarations at ingestion, optionally checking their references. */
export declare function validatePrerequisites(value: unknown, context?: PrerequisiteContext): Prerequisites;
export interface PrerequisiteAssessment {
    status: "ready" | "waiting" | "unresolved";
    reasons: string[];
    /** Unavailable declared artifacts; for any, these are alternatives, not all required. */
    missingInputs: string[];
}
/**
 * Evaluate only the declared rule. A conditional rule requires all listed inputs
 * and a true named condition. A missing condition is unresolved; false is waiting.
 * Explicit all with no inputs permits a start; absence of a rule never does.
 */
export declare function assessPrerequisites(prerequisites: Prerequisites | undefined, availableArtifactIds: Iterable<string>, conditions?: Readonly<Record<string, boolean | undefined>>): PrerequisiteAssessment;