const chatHistory: ChatMessage[] = [
  {
    role: "user",
    content: "What's the weather in London?",
  },
  {
    role: "assistant",
    content: "Let me check the weather.",
    options: {
      toolCall: [
        {
          id: "call_123",
          name: "weather",
          input: JSON.stringify({ location: "London" }),
        },
      ],
    },
  },
  {
    role: "tool",
    content: "The weather in London is sunny, +20°C",
    options: {
      toolResult: {
        id: "call_123",
      },
    },
  },
];

import { Anthropic, ChatMessage, FunctionTool } from "llamaindex";
import { AnthropicAgent } from "llamaindex/agent/anthropic";

// Chat history with a previous tool call
const chatHistory: ChatMessage[] = [
  {
    role: "user",
    content: "What's the weather in London?",
  },
  {
    role: "assistant",
    content: "Let me check the weather.",
    options: {
      toolCall: [
        {
          id: "call_123",
          name: "weather",
          input: JSON.stringify({ location: "London, UK" }),
        },
      ],
    },
  },
  {
    role: "tool",
    content: "The weather in London is sunny, +20°C",
    options: {
      toolResult: {
        id: "call_123",
      },
    },
  },
];

// Create agent with the weather tool and chat history
const agent = new AnthropicAgent({
  llm: new Anthropic({ model: "claude-3-opus" }),
  tools: [
    FunctionTool.from<{ location: string }>(
      (query) => `The weather in ${query.location} is sunny`,
      {
        name: "weather",
        description: "Get the weather",
        parameters: {
          type: "object",
          properties: {
            location: {
              type: "string",
              description: "The location to get the weather for",
            },
          },
          required: ["location"],
        },
      },
    ),
  ],
  chatHistory,
});

// Agent now correctly processes the chat history and demonstrates awareness of the tool call arguments while not making extra tool calls.
const response = await agent.chat({
  message: "What exact location did you use in the weather tool?",
});