/**
 * The server-level instructions every MCP client injects into the agent
 * context. Extracted from index.ts so tests can read them without booting
 * the server: this string is the single piece of routing the host is
 * guaranteed to see, which makes it the contract for "how does the agent
 * know what to ask" — and a contract wants a test.
 */
export declare const SERVER_INSTRUCTIONS: string;