import type { ActorCompletionReason, ActorStatus, ActorStopCause } from "./actor-contract.js";
/** Diagnostic categories describe the instrument's result, never prove a target-app defect. */
export declare const CUA_DIAGNOSTIC_CATEGORIES: readonly ["preview", "participant_outcome", "session_interrupted", "execution_error", "evidence_invalid", "mixed", "unknown"];
export type CuaDiagnosticCategory = typeof CUA_DIAGNOSTIC_CATEGORIES[number];
/** Closed at both projection and telemetry boundaries. No provider messages are classified. */
export declare const CUA_DIAGNOSTIC_STOP_CAUSES: readonly ["provider_output_limit", "provider_token_limit", "time_limit", "spend_limit", "study_spend_limit", "provider_incomplete", "provider_status", "harness_aborted", "adapter_limit", "usage_unreported", "unspecified_limit", "mixed", "unknown"];
export type CuaDiagnosticStopCause = typeof CUA_DIAGNOSTIC_STOP_CAUSES[number];
export interface CuaDiagnostics {
    category: CuaDiagnosticCategory;
    stopCause?: CuaDiagnosticStopCause;
}
export declare const isCuaDiagnosticCategory: (value: unknown) => value is CuaDiagnosticCategory;
export declare const isCuaDiagnosticStopCause: (value: unknown) => value is CuaDiagnosticStopCause;
interface SessionEnding {
    status: ActorStatus;
    completionReason: ActorCompletionReason;
    stopCause?: ActorStopCause;
}
export declare function cuaLaneDiagnostics(input: {
    dryRun: boolean;
    skipped?: boolean;
    executionError?: boolean;
    noEngagement?: boolean;
    session?: SessionEnding;
}): CuaDiagnostics;
/** Each lane retains its details. The summary never borrows lane one's ending for other lanes. */
export declare function summarizeCuaDiagnostics(input: {
    dryRun: boolean;
    evidenceInvalid: boolean;
    lanes: readonly {
        status: string;
        ok: boolean;
        diagnostics?: CuaDiagnostics;
    }[];
}): CuaDiagnostics;
export declare function formatCuaStopCause(cause: CuaDiagnosticStopCause): string;
export declare function formatCuaDiagnostics(diagnostics: CuaDiagnostics): string;
export {};