/**
 * [WHO]: createAgentTool, createTaskToolAlias — the "Agent" / "Task" tool for LLM invocation
 * [FROM]: Depends on @catui/agent-core ( @sinclair/typebox, ./agent-definition, ./agent-input-output, ./agent-registry, ./agent-tool-filter, ./sub-agent-backend
 * [TO]: Consumed by core/tools/index.ts ( tool registration ), core/runtime/agent-session.ts
 * [HERE]: core/sub-agent/agent-tool.ts - The Agent tool implementation per CC §VI (full spawn flow)
 * [COVENANT]: Change tool schema → update agent-input-output.ts
 */
import type { AgentTool } from "@catui/agent-core";
import type { Model } from "@catui/ai/types";
import { type Static } from "@sinclair/typebox";
import type { ModelRegistry } from "../model-registry.js";
import type { AgentPermissionMode } from "./agent-definition.js";
import type { AgentDefinitionRegistry } from "./agent-registry.js";
import { InProcessSubAgentBackend } from "./sub-agent-backend.js";
import type { CreateSessionFn } from "./sub-agent-backend.js";
import type { SubAgentEvent } from "./sub-agent-types.js";
import { WorktreeManager } from "../workspace/index.js";
import type { AgentSession } from "../runtime/agent-session.js";
export declare const AGENT_TOOL_NAME = "Agent";
export declare const TASK_TOOL_NAME = "Task";
declare const agentSchema: import("@sinclair/typebox").TObject<{
    description: import("@sinclair/typebox").TString;
    prompt: import("@sinclair/typebox").TString;
    subagent_type: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TString>;
    model: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TUnion<[import("@sinclair/typebox").TLiteral<"sonnet">, import("@sinclair/typebox").TLiteral<"opus">, import("@sinclair/typebox").TLiteral<"haiku">, import("@sinclair/typebox").TString]>>;
    run_in_background: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TBoolean>;
    name: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TString>;
    mode: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TUnion<[import("@sinclair/typebox").TLiteral<"acceptEdits">, import("@sinclair/typebox").TLiteral<"auto">, import("@sinclair/typebox").TLiteral<"bypassPermissions">, import("@sinclair/typebox").TLiteral<"default">, import("@sinclair/typebox").TLiteral<"dontAsk">, import("@sinclair/typebox").TLiteral<"plan">]>>;
    isolation: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TLiteral<"worktree">>;
}>;
export type AgentToolInput = Static<typeof agentSchema>;
export interface AgentToolConfig {
    /** The parent AgentSession (for inheriting model, prompt, messages) */
    parentSession: AgentSession;
    /** The parent session's current permission mode */
    parentPermissionMode: AgentPermissionMode;
    /** The parent session's model */
    parentModel?: Model<any>;
    /** Agent definition registry (for looking up agent types) */
    registry?: AgentDefinitionRegistry;
    /** Worktree manager (for isolation mode) */
    worktreeManager?: WorktreeManager;
    /** Whether background tasks are disabled (CC: CLAUDE_CODE_DISABLE_BACKGROUND_TASKS) */
    disableBackgroundTasks?: boolean;
    /** Whether this agent is already a fork worker (prevents recursive fork) */
    isForkWorker?: boolean;
    /** Whether this agent is in a team context */
    isTeamContext?: boolean;
    /** Whether this agent is an in-process teammate */
    isInProcessTeam?: boolean;
    /** MCP tools available to sub-agents */
    mcpTools?: AgentTool[];
    /** Auto-background threshold override (default: 2 minutes) */
    autoBackgroundMs?: number;
    /** Tool use context for system prompt building */
    toolUseContext?: unknown;
    /** Callback for forwarding sub-agent events to parent's UI */
    onSubAgentEvent?: (event: SubAgentEvent) => void;
    /** Model registry for resolving tier names to concrete models (CC §VI step 7) */
    modelRegistry?: ModelRegistry;
    /** Factory for creating AgentSession instances (injected to avoid cycle with runtime/sdk) */
    createSession: CreateSessionFn;
    /** Shared InProcessSubAgentBackend for session tracking (SendMessage routing, CC §XI) */
    backend?: InProcessSubAgentBackend;
}
export declare function createAgentTool(config: AgentToolConfig): AgentTool<typeof agentSchema>;
/**
 * Create the Task tool alias (CC: eI="Task" is an alias for Agent).
 * Same functionality, different name.
 */
export declare function createTaskToolAlias(config: AgentToolConfig): AgentTool<typeof agentSchema>;
export {};