import type { ToolResult } from "../pi.js";
/** Wrap guarded text as a pi tool result (content-blocks contract). */
export declare function textResult(text: string, details?: unknown): ToolResult;
/** First text block of a tool result, for tests and internal use. */
export declare function resultText(result: {
    content?: unknown;
}): string;
export type ToolInfo = {
    name: string;
    description?: string;
    inputSchema?: unknown;
};
export declare const MAX_RESULT_CHARS: number;
/** Render a tool's full describe block. */
export declare function renderDescribe(tool: ToolInfo, server: string | undefined): string;
/** Render a one-line search hit. */
export declare function renderSearchHit(tool: ToolInfo): string;
export declare function renderToolResult(result: unknown): string;
/** Extract a short first line for compact call-result rendering in the transcript. */
export declare function resultFirstLine(text: string): string;
/** The ui:// resource a tool result carries (port of the adapter's
 * getToolUiResourceUri): `_meta["ui/resourceUri"]` or `_meta.ui.resourceUri`. */
export declare function toolUiResourceUri(result: unknown): string | undefined;
/** MCP readResource result → guarded plain text: text contents pass through
 *  (pretty-printed when small JSON; with the shared size guard), images become
 *  markers, base64 blobs become byte notes. */
export declare function renderResourceResult(result: unknown): string;
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