import type { EffectivenessDimensionScore } from "../../domain/runtime/effectiveness-dimension.js";
import type { StaleValueWarning } from "../../domain/runtime/stale-value-warning.js";
export interface EffectivenessSignalRecord {
    signalType: string;
    subjectId: string;
    context?: string;
    result: "success" | "skipped" | "failed" | "accepted" | "rejected";
    recordedAt: string;
    details?: Record<string, unknown>;
    category?: "install" | "firstRun" | "guidance" | "runtimeUsage" | "maintenance" | "recursive" | "handoff" | "outcomes" | "heuristics";
    confidenceLevel?: "direct" | "inferred-high" | "inferred-medium" | "inferred-low";
}
export interface EffectivenessSummary {
    total: number;
    bySignalType: Record<string, number>;
    byResult: Record<string, number>;
    latest?: EffectivenessSignalRecord;
}
export declare function readEffectivenessSignals(root: string): Promise<EffectivenessSignalRecord[]>;
export declare function appendEffectivenessSignal(root: string, signal: EffectivenessSignalRecord): Promise<void>;
export declare function updateLastRuntimeCommandTimestamp(root: string): Promise<void>;
export declare function readLastRuntimeCommandTimestamp(root: string): Promise<string | null>;
export declare function appendGuidanceAdoptionSignal(root: string, suggestedCommand: string, executedCommand: string): Promise<void>;
export declare function summarizeEffectivenessSignals(root: string): Promise<EffectivenessSummary>;
export interface EffectivenessSummaryV2 extends EffectivenessSummary {
    dimensions: EffectivenessDimensionScore[];
    staleWarnings: StaleValueWarning[];
    suggestedNextActions: string[];
}
export declare function summarizeEffectivenessSignalsV2(root: string): Promise<EffectivenessSummaryV2>;
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