Function isObject

lib/normalize.ts:3–5

(val: unknown)

import type { AgentMessage, AssistantMessage, ToolCallContent } from "./types";

function isObject(val: unknown): val is Record<string, unknown> {
  return typeof val === "object" && val !== null && !Array.isArray(val);
}

function normalizeToolCallBlock(block: unknown): ToolCallContent | null {
  if (!isObject(block) || block.type !== "toolCall") return null;