/** Result return modes supported by delegated child runs. */
export type ChildRunResultMode = "summary" | "full" | "structured";
/** Options accepted when building child run result summaries. */
export type BuildChildRunResultSummaryOptions = {
    mode?: ChildRunResultMode;
};
/** Structured contract facts extracted from delegated result text. */
export type ChildRunContractFacts = {
    modelIds?: string[];
    toolIds?: string[];
    providerToolIds?: string[];
    importPaths?: string[];
};
/** Summary metadata returned to parent runs after child delegation. */
export type ChildRunResultSummary = {
    text: string;
    status?: "complete" | "truncated";
    truncated?: boolean;
    originalChars?: number;
    returnedChars?: number;
    omittedChars?: number;
    limitChars?: number;
    contractFacts?: ChildRunContractFacts;
};
/** Extract structured contract facts from delegated result text. */
export declare function extractChildRunContractFacts(text: string): ChildRunContractFacts | undefined;
/** Summarize child run result text helper. */
export declare function summarizeChildRunResultText(text: string, maxLength?: number): string;
/** Summarize child run result text with machine-readable truncation metadata. */
export declare function summarizeChildRunResultTextWithMetadata(text: string, maxLength?: number): ChildRunResultSummary;
/** Builds child run result summary. */
export declare function buildChildRunResultSummary(text: string, options?: BuildChildRunResultSummaryOptions): ChildRunResultSummary;
/** Builds root owned child run result text. */
export declare function buildRootOwnedChildRunResultText(text: string): string;
/** Builds root owned child run result hint. */
export declare function buildRootOwnedChildRunResultHint(input: {
    text: string;
    instruction: string;
}): {
    instruction: string;
    suggestedText: string;
};
/** Summarize child run result value helper. */
export declare function summarizeChildRunResultValue(output: unknown, depth?: number): unknown;
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