import { type ChildProcess, type SpawnOptions } from 'node:child_process';
import type { ToolDefinition } from './pi-ext-types.js';
export declare const MAX_SUBAGENT_TASKS = 8;
export declare const MAX_SUBAGENT_CONCURRENCY = 8;
export declare const MAX_SUBAGENT_MODEL_CHOICES = 32;
export declare const MAX_SUBAGENT_MODEL_LIST_CHARS = 1200;
export declare const SUBAGENT_KILL_GRACE_MS = 5000;
declare const SubagentParameters: import("@sinclair/typebox").TObject<{
    description: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TString>;
    prompt: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TString>;
    subagent_type: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TString>;
    model: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TString>;
    parallel: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TArray<import("@sinclair/typebox").TObject<{
        description: import("@sinclair/typebox").TString;
        prompt: import("@sinclair/typebox").TString;
        subagent_type: import("@sinclair/typebox").TString;
        model: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TString>;
    }>>>;
    chain: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TArray<import("@sinclair/typebox").TObject<{
        description: import("@sinclair/typebox").TString;
        prompt: import("@sinclair/typebox").TString;
        subagent_type: import("@sinclair/typebox").TString;
        model: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TString>;
    }>>>;
}>;
export interface SubagentModelOption {
    provider: string;
    id: string;
}
type SubagentMode = 'single' | 'parallel' | 'chain';
export interface SubagentUsage {
    input: number;
    output: number;
    cacheRead: number;
    cacheWrite: number;
    cost: number;
    contextTokens: number;
    turns: number;
}
export interface SubagentResult {
    description: string;
    prompt: string;
    subagentType: string;
    exitCode: number;
    output: string;
    stderr: string;
    usage: SubagentUsage;
    model?: string;
    stopReason?: string;
    errorMessage?: string;
}
export interface SubagentDetails {
    mode: SubagentMode;
    results: SubagentResult[];
    usage: SubagentUsage;
}
export type SubagentSpawn = (command: string, args: string[], options: SpawnOptions) => ChildProcess;
export interface SubagentToolDeps {
    spawn: SubagentSpawn;
    command: string;
    agentDir: string;
    ensureRoles(): void;
    toolShimsPath: string;
    mcpBridgePath: string;
    killGraceMs: number;
}
export declare function createSubagentTool(overrides?: Partial<SubagentToolDeps>, modelOptions?: SubagentModelOption[]): ToolDefinition<typeof SubagentParameters, SubagentDetails>;
export {};