import type { Grader, GraderInput, GraderMetadata, GraderResult } from "../types.js";
import { type RequiredDisallowedConfig } from "../utils/required-disallowed.js";
export type Config = RequiredDisallowedConfig;
export type Metadata = Config & {
    /**
     * All skills that were called during the session
     */
    skills: string[];
};
export declare class SkillInvocationGrader implements Grader {
    metadata: GraderMetadata;
    defaultName(config: Record<string, unknown>): string;
    /**
     * A skill-invocation instance asserts absence when it ONLY forbids skills: at
     * least one `disallowed` entry and no `required`. An empty trajectory invokes
     * no skills, so such a config passes — under the oracle baseline it is reported
     * N/A rather than flagged as trivially passing (mirrors `tool-calls`).
     */
    assertsAbsence(config: Record<string, unknown>): boolean;
    grade(input: GraderInput): Promise<GraderResult>;
}
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