/**
 * pi-boomerang - Token-efficient autonomous task execution
 *
 * Executes a task autonomously, then summarizes the exchange using
 * navigateTree (like /tree does).
 *
 * Usage: /boomerang <task>
 */
import type { ThinkingLevel } from "@earendil-works/pi-agent-core";
import { type ExtensionAPI } from "@earendil-works/pi-coding-agent";
import type { ConfigStorageOptions, ExtensionHostCapabilities } from "../metadata-types.js";
export interface BoomerangConfig {
    toolEnabled?: boolean;
    toolGuidance?: string | null;
}
export declare function installBoomerangBranchSummaryRendererPatch(): void;
export declare function resolveBoomerangConfigPath(pathOrOptions?: string | ConfigStorageOptions): {
    dir: string;
    path: string;
};
export declare function loadBoomerangConfig(pathOrOptions?: string | ConfigStorageOptions): BoomerangConfig;
export declare function saveBoomerangConfig(config: BoomerangConfig, pathOrOptions?: string | ConfigStorageOptions): string | null;
export declare function extractRethrow(task: string): {
    task: string;
    rethrowCount: number;
} | null;
declare global {
    var __boomerangCollapseInProgress: boolean | undefined;
}
interface PromptTemplate {
    content: string;
    models: string[];
    skill?: string;
    thinking?: ThinkingLevel;
}
interface ChainStep {
    templateRef: string;
    template: PromptTemplate;
    args: string[];
}
export declare function parseChain(task: string): {
    steps: Array<{
        templateRef: string;
        args: string[];
    }>;
    globalArgs: string[];
} | null;
export declare function getEffectiveArgs(step: ChainStep, globalArgs: string[]): string[];
export interface BoomerangOptions extends ConfigStorageOptions {
    toolEnabledByDefault?: boolean;
    enableCommand?: boolean;
    enableTool?: boolean;
    enableShortcuts?: boolean;
    enableAutoMode?: boolean;
    hostCapabilities?: ExtensionHostCapabilities;
}
export declare function registerBoomerangExtension(pi: ExtensionAPI, options?: BoomerangOptions): void;
export default registerBoomerangExtension;
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