/**
 * [WHO]: Skill tool - LLM-callable skill invocation
 * [FROM]: Claude Code Skill tool (aligned)
 * [TO]: Consumed by skill-tool extension via registerTool()
 * [HERE]: extensions/builtin/skill-tool/skill-tool.ts
 *
 * Allows the LLM to proactively invoke skills (slash commands)
 * by name, returning the skill content as a tool result.
 */
import type { Static } from "@sinclair/typebox";
import type { AgentToolResult } from "@catui/agent-core";
import type { ExtensionContext } from "../../../core/extensions-host/types.js";
declare const skillInputSchema: import("@sinclair/typebox").TObject<{
    skill: import("@sinclair/typebox").TString;
    args: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TString>;
}>;
export type SkillInput = Static<typeof skillInputSchema>;
export declare function createSkillTool(): {
    name: string;
    label: string;
    description: string;
    parameters: import("@sinclair/typebox").TObject<{
        skill: import("@sinclair/typebox").TString;
        args: import("@sinclair/typebox").TOptional<import("@sinclair/typebox").TString>;
    }>;
    guidance: string;
    execute(_toolCallId: string, params: SkillInput, _signal: AbortSignal | undefined, _onUpdate: undefined, ctx: ExtensionContext): Promise<AgentToolResult<unknown>>;
};
export {};