ToolLoop: Open-Source Agent Framework for Claude-Style Tools with Any Model

What ToolLoop Does

ToolLoop is an open-source Python framework built to provide Claude Code-style functionality without being locked into a single provider. The framework includes 11 tools covering file operations, code search, shell access, and sub-agents, and works with any LLM through LiteLLM integration.

Key Features

• Open-source framework written in Python
• Approximately 2,700 lines of code
• 11 built-in tools: file operations, code search, shell, sub-agents
• Works with any LLM through LiteLLM
• Supports any model on Bedrock (DeepSeek, Llama, Mistral) or any API (OpenAI, Moonshot, local endpoints)
• Switch models mid-conversation with shared context
• Same tools and prompts work across different models

Code Example

Here's the SDK usage example from the source:

from sdk import query, ToolLoopOptions

async for event in query(
    prompt="Find all TODO comments, fix them, run the tests",
    options=ToolLoopOptions(
        model="bedrock/converse/deepseek.v3.2",
        allowed_tools=["Read", "Edit", "Grep", "Glob", "Bash"],
    ),
):
    print(event)

You can swap deepseek.v3.2 for any model while maintaining the same tools and prompt structure.

Who This Is For

Developers who want Claude Code-style agent functionality but need flexibility to use different models across various providers and local setups.