import type { AgentTool } from "@elyracode/agent-core";
import { type Static, Type } from "typebox";
import type { ToolDefinition } from "../extensions/types.js";
declare const extensionWriteSchema: Type.TObject<{
    name: Type.TString;
    description: Type.TString;
    code: Type.TString;
    scope: Type.TOptional<Type.TUnion<[Type.TLiteral<"user">, Type.TLiteral<"project">]>>;
}>;
export type ExtensionWriteToolInput = Static<typeof extensionWriteSchema>;
export interface ExtensionWriteToolDetails {
    name: string;
    scope: "user" | "project";
    path: string | null;
    saved: boolean;
    rejected?: boolean;
}
/** Pluggable operations for the extension-write tool (overridable for tests). */
export interface ExtensionWriteOperations {
    writeFile: (absolutePath: string, content: string) => Promise<void>;
    mkdir: (dir: string) => Promise<void>;
    exists: (path: string) => boolean;
}
export interface ExtensionWriteToolOptions {
    /** Directory for user-scoped extensions (e.g. ~/.elyra/agent/extensions). */
    userExtensionsDir: string;
    /** Directory for project-scoped extensions (e.g. <cwd>/.elyra/extensions). */
    projectExtensionsDir: string;
    /** Whether auto-extensions is enabled. Read fresh per call so toggles take effect immediately. */
    getAutoExtensions: () => boolean;
    /** Custom operations (default: local filesystem). */
    operations?: ExtensionWriteOperations;
}
/** Validate an extension name. Returns an error message, or null if valid. */
export declare function validateExtensionName(name: string): string | null;
/** Validate an extension description. Returns an error message, or null if valid. */
export declare function validateExtensionDescription(description: string): string | null;
/**
 * Validate that the code looks like a loadable extension: it must have a
 * default export. Returns an error message, or null if valid.
 */
export declare function validateExtensionCode(code: string): string | null;
export declare function createExtensionWriteToolDefinition(options: ExtensionWriteToolOptions): ToolDefinition<typeof extensionWriteSchema, ExtensionWriteToolDetails | undefined>;
export declare function createExtensionWriteTool(options: ExtensionWriteToolOptions): AgentTool<typeof extensionWriteSchema>;
export {};
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