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6_mutli_agent.py keep calling the tool with missing args #3

Description

@kensongzhu

Description

Using Anthropic and Brave Search on my end, what was observed

  • The researcher agent keeps calling the tool with missing args, namely enter into like a unrecoverable loop.
  • Tried many times, even there was once that it does pass to the writer agent, and then the writer call the tools with empty args again and again.

Any thoughts?

Reproduction

import os
from typing import cast

from dotenv import load_dotenv
from llama_index.core.agent.workflow import (
    AgentOutput,
    AgentWorkflow,
    FunctionAgent,
    ToolCall,
    ToolCallResult,
)
from llama_index.core.workflow import (
    Context,
)
from llama_index.llms.anthropic import Anthropic
from llama_index.tools.brave_search import BraveSearchToolSpec
from rich.console import Console

load_dotenv()

brave_search_tool_spec = BraveSearchToolSpec(
    api_key=cast(str, os.getenv("BRAVE_SEARCH_API_KEY"))
)
search_web = brave_search_tool_spec.to_tool_list()[0]

llm = Anthropic(
    model="claude-3-7-sonnet-latest",
    # temperature=1.0,
    # max_tokens=1024,
)

# rest are same as the exmple

Output

Following keep repeating as if it never ends

🔧 Tool Result (record_notes):
  Arguments: {'notes_title': 'History of the World Wide Web'}
  Output: record_notes() missing 1 required positional argument: 'notes'

Dependencies

llama-cloud                             0.1.23
llama-cloud-services                    0.6.24
llama-index                             0.12.38
llama-index-agent-openai                0.4.8
llama-index-cli                         0.4.1
llama-index-core                        0.12.38
llama-index-embeddings-openai           0.3.1
llama-index-indices-managed-llama-cloud 0.7.1
llama-index-llms-anthropic              0.6.19
llama-index-llms-openai                 0.3.44
llama-index-multi-modal-llms-openai     0.4.3
llama-index-program-openai              0.3.1
llama-index-question-gen-openai         0.3.0
llama-index-readers-file                0.4.8
llama-index-readers-llama-parse         0.4.0
llama-index-tools-brave-search          0.3.0
llama-parse                             0.6.24

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