/**
 * Dependency-free OTLP/HTTP telemetry for the machine Agent.
 *
 * Callers can name only reviewed operations, outcomes and lifecycle events.
 * There is deliberately no field for a URL, request/response body, header,
 * credential, tenant coordinate, command, error detail or arbitrary label.
 */
export declare const AGENT_TELEMETRY_OPERATIONS: readonly ["agent.heartbeat", "agent.update", "attestation.refresh", "deployment.claim", "deployment.run", "deployment.renew", "deployment.complete", "migration.claim", "migration.run", "migration.renew", "migration.complete", "provisioning.preflight", "provisioning.claim", "provisioning.apply", "provisioning.renew", "provisioning.complete", "vault.sync", "agent.other"];
export type AgentTelemetryOperation = (typeof AGENT_TELEMETRY_OPERATIONS)[number];
export declare const AGENT_TELEMETRY_OUTCOMES: readonly ["success", "idle", "refused", "retryable", "failed"];
export type AgentTelemetryOutcome = (typeof AGENT_TELEMETRY_OUTCOMES)[number];
export declare const AGENT_TELEMETRY_EVENTS: readonly ["agent.started", "agent.draining", "agent.stopped", "agent.update_prepared", "agent.update_recovered", "metal.resource.recorded", "metal.resource.unavailable", "metal.resource.paused", "metal.resource.retrying", "telemetry.queue_overflow"];
export type AgentTelemetryEvent = (typeof AGENT_TELEMETRY_EVENTS)[number];
export interface AgentTelemetryConfig {
    endpoint: string;
    serviceName: string;
    instanceId: string;
    environment: 'production' | 'development';
    flushIntervalMs: number;
    traceSampleRatio: number;
}
export interface AgentOperationObservation {
    operation: AgentTelemetryOperation;
    outcome: AgentTelemetryOutcome;
    startedAtMs: number;
    durationMs: number;
}
export interface AgentTelemetryState {
    active: number;
    completed: number;
    failed: number;
    draining: boolean;
}
export interface AgentTelemetry {
    recordOperation(observation: AgentOperationObservation): void;
    recordEvent(event: AgentTelemetryEvent): void;
    recordState(state: AgentTelemetryState): void;
    flush(): Promise<void>;
    close(): Promise<void>;
}
type FetchLike = (input: string | URL | Request, init?: RequestInit) => Promise<Response>;
export declare const AGENT_OTLP_EXPORT_TIMEOUT_MS = 5000;
export declare const AGENT_OTLP_MAX_ATTEMPTS = 2;
export declare const AGENT_OTLP_MAX_RETRY_DELAY_MS = 1000;
export declare const AGENT_TELEMETRY_MAX_SPANS = 256;
export declare const AGENT_TELEMETRY_MAX_LOGS = 64;
/** Resolve once at process startup; production refuses to run without an exporter. */
export declare function resolveAgentTelemetryConfig(env?: Record<string, string | undefined>): AgentTelemetryConfig | null;
export declare function createAgentTelemetry(input: AgentTelemetryConfig | null, options?: {
    fetch?: FetchLike;
    warn?: (message: string) => void;
    now?: () => number;
    random?: () => number;
    wait?: (milliseconds: number) => Promise<void>;
}): AgentTelemetry;
export {};