import { type Tool } from 'ai';
import { z } from 'zod';
import type { SkillDefinition } from './skills-loader.ts';
export declare const SKILL_INVOCATION_CONTRACT = "Skills extend you with task-specific procedures. Each line below is `<name>: <description>`. When a skill's description matches the task at hand, you MUST call the `Skill` tool with that exact name and follow the instructions it returns before producing your answer \u2014 this is blocking, not optional. Never claim to have applied a skill without calling the tool, and only invoke names that appear in this list.";
declare const skillInputSchema: z.ZodObject<{
    skill: z.ZodString;
    args: z.ZodOptional<z.ZodString>;
}, z.core.$strip>;
export type SkillToolInput = z.infer<typeof skillInputSchema>;
export type SkillToolOutput = {
    ok: true;
    name: string;
    path: string;
    body: string;
    args?: string;
} | {
    ok: false;
    error: string;
};
export declare function skillIndexBlock(skills: readonly SkillDefinition[]): string;
export declare function skillTool(skills: readonly SkillDefinition[]): Tool<SkillToolInput, SkillToolOutput>;
export {};