import type { ExtensionAPI } from "@earendil-works/pi-coding-agent";
/**
 * Block subagent spawns that use a bare role/built-in name while a custom
 * agent is mapped for that role — the built-in is read-only and stalls the
 * run. Only active during a senai run; everything else passes through.
 * Also record the artifact paths each spawn is expected to write, so the
 * completion guard below can verify them.
 */
export declare function registerToolCallHook(pi: ExtensionAPI): void;