/**
 * Pi subprocess runner for pi-omni-compact.
 *
 * Spawns a pi subprocess in JSON mode with read-only tools and pi-read-map,
 * parses the JSON event stream, and extracts the final assistant text.
 */
import type { ResolvedModel } from "./models.js";
/**
 * Spawn a pi subprocess to generate a summarization.
 */
export declare function runSummarizationAgent(input: string, systemPrompt: string, model: ResolvedModel, signal: AbortSignal, cwd: string): Promise<string | undefined>;
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