/**
 * Tool Registry Extension Schema (v0.11.3+ ZT Pack)
 *
 * Records tool registration and capability declarations in
 * ext["org.peacprotocol/tool_registry"].
 *
 * Security: registry_uri validated against URL scheme allowlist
 * (HTTPS + URN only; no file:// or data:// for SSRF prevention).
 */
import { z } from 'zod';
export declare const TOOL_REGISTRY_EXTENSION_KEY: "org.peacprotocol/tool_registry";
/**
 * Tool Registry extension schema
 */
export declare const ToolRegistrySchema: z.ZodObject<{
    tool_id: z.ZodString;
    registry_uri: z.ZodString;
    version: z.ZodOptional<z.ZodString>;
    capabilities: z.ZodOptional<z.ZodArray<z.ZodString>>;
}, z.core.$strict>;
export type ToolRegistry = z.infer<typeof ToolRegistrySchema>;
/**
 * Validate a ToolRegistry object.
 */
export declare function validateToolRegistry(data: unknown): {
    ok: true;
    value: ToolRegistry;
} | {
    ok: false;
    error: string;
};
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