import { type Dirent } from "node:fs";
import type { SkillOperationBudget } from "../../skill/operation-budget.js";
/** Result returned from runtime builtin skill entries. */
export type RuntimeBuiltinSkillEntriesResult = {
    ok: true;
    entries: Dirent[];
} | {
    ok: false;
    errorMessage: string;
};
/** Resolves runtime builtin skills dir. */
export declare function resolveRuntimeBuiltinSkillsDir(baseDir: string): string;
/** Read runtime builtin skill entries helper. */
export declare function readRuntimeBuiltinSkillEntries(skillsDir: string): RuntimeBuiltinSkillEntriesResult;
/** Resolves runtime builtin skill reference file path. */
export declare function resolveRuntimeBuiltinSkillReferenceFilePath(skillsDir: string, skillId: string, file: string): string | null;
/** Read runtime builtin skill reference file helper. */
export declare function readRuntimeBuiltinSkillReferenceFile(skillsDir: string, skillId: string, file: string): string | null;
/** Read runtime builtin directory skill helper. */
export declare function readRuntimeBuiltinDirectorySkill(skillsDir: string, skillId: string): string | null;
/** Read runtime builtin flat skill helper. */
export declare function readRuntimeBuiltinFlatSkill(skillsDir: string, skillId: string): string | null;
/** Read runtime builtin skill helper. */
export declare function readRuntimeBuiltinSkill(skillsDir: string, skillId: string): string | null;
/** List immediate files in the legacy references/ directory. */
export declare function listRuntimeBuiltinSkillReferenceFiles(skillsDir: string, skillId: string): string[];
/** List runtime builtin skill references. */
export declare function listRuntimeBuiltinSkillReferences(skillsDir: string, skillId: string): string[];
/** Strict bounded runtime read of a built-in skill document. */
export declare function readRuntimeBuiltinSkillWithinLimit(skillsDir: string, skillId: string, budget: SkillOperationBudget): Promise<string | null>;
/** Strict bounded runtime read of one advertised built-in reference. */
export declare function readRuntimeBuiltinSkillReferenceWithinLimit(skillsDir: string, skillId: string, file: string, budget: SkillOperationBudget): Promise<string | null>;
/** Strict capped and deterministic built-in reference listing. */
export declare function listRuntimeBuiltinSkillReferencesWithinLimit(skillsDir: string, skillId: string, budget: SkillOperationBudget): Promise<string[]>;
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