import type { AssistantMessage } from "@earendil-works/pi-ai";
/**
 * Extract text from assistant message.
 */
export declare function extractTextFromMessage(message: AssistantMessage): string;
/**
 * Extract the model's reasoning (thinking) text from an assistant message.
 * Returns "" when there is none (or it was redacted to an empty block).
 */
export declare function extractThinkingFromMessage(message: AssistantMessage): string;
/**
 * Check if assistant message contains tool calls (more turns will follow).
 */
export declare function hasToolCalls(message: AssistantMessage): boolean;
/**
 * Format a single tool-call summary line for the remote user.
 * Wraps the tool name in backticks so Matrix renders it as inline code,
 * preserving snake_case readability.
 */
export declare function formatToolCall(name: string, args: Record<string, unknown> | undefined): string;
/**
 * Format tool call summaries for the remote user.
 */
export declare function formatToolCalls(message: AssistantMessage): string;
/**
 * Extract text from a tool result (AgentToolResult-shaped, or a plain string).
 */
export declare function extractToolResultText(result: any): string;
/**
 * Format a tool's output, shown (truncated) under its call line.
 * Returns "" when there's nothing to show and it wasn't an error.
 */
export declare function formatToolResult(result: any, isError: boolean): string;
/**
 * Truncate string to max length with ellipsis.
 */
export declare function truncate(str: string, maxLen: number): string;
/**
 * Split long messages into chunks, breaking at newlines when possible.
 */
export declare function splitMessage(text: string, maxLen: number): string[];
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