import { type AssistantMessage, type AssistantMessageEvent, type ToolResultMessage } from "@earendil-works/pi-ai";
import type { AgentLoopConfig } from "./types.ts";
type TerminalAssistantMessageEvent = Extract<AssistantMessageEvent, {
    type: "done" | "error";
}>;
export declare class ProviderRetryWatchdogAbortError extends Error {
    readonly providerCause: string;
    constructor(providerCause: string);
}
/**
 * Marks a terminal message whose `toolUse` stop reason was demoted because the provider sent no
 * tool call. Demotion rewrites the stop reason, so this diagnostic is the only surviving evidence
 * that the turn was malformed rather than a clean stop; downstream recovery keys on it.
 */
export declare const EMPTY_TOOL_USE_DEMOTION_DIAGNOSTIC = "empty_tool_use_terminal_state";
export declare function demoteToolUseWithoutToolCalls(message: AssistantMessage): AssistantMessage;
export declare function promoteStopWithPendingToolCalls(message: AssistantMessage): AssistantMessage;
export declare function shouldTerminateAssistantTurn(message: AssistantMessage): boolean;
export declare function isStreamIdleTimeoutError(error: unknown): boolean;
/**
 * After tools already finished (Cursor exec-resolved or buffered results),
 * a silent provider is a finished turn, not a failed one.
 */
export declare function shouldFinalizeIdleAsStop(partialMessage: AssistantMessage | null, providerToolResults: readonly ToolResultMessage[]): boolean;
export declare function createTerminalFailureAssistantMessage(model: AgentLoopConfig["model"], reason: Extract<AssistantMessage["stopReason"], "aborted" | "error">, error: unknown, partialMessage: AssistantMessage | null): AssistantMessage;
export declare function normalizeTerminalAssistantMessage(message: AssistantMessage, event: TerminalAssistantMessageEvent): AssistantMessage;
export {};
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