letta-ai/letta 0.3.18

v0.3.18

on GitHub

This release introduces tool creation from inside Python scripts, returning usage statistics, and many bug fixes.

🔧 Tool creation in the Python Client

We added support for directly creating tools in Python:

def print_tool(message: str):
    """ 
    Args: 
        message (str): The message to print.
        
    Returns:
        str: The message that was printed.
        
    """
    print(message)
    return message

tool = client.create_tool(print_tool, tags=["extras"])
agent_state = client.create_agent(tools=[tool.name]))

📊 Usage Statistics

Sending a message to an agent now also returns usage statistics for computing cost metrics:

class MemGPTUsageStatistics(BaseModel):
    completion_tokens: int
    prompt_tokens: int
    total_tokens: int
    step_count: int

What's Changed

• feat: Qdrant storage connector by @Anush008 in #1023
• fix: remove server locking on agents by @sarahwooders in #1442
• fix: various fixes to python client and add tutorial notebooks by @sarahwooders in #1377
• feat: cursor pagination of get_all_users in /admin/users route by @ajanitshimanga in #1441
• fix: allow concurrent processing for async def send_message function by @sarahwooders in #1445
• fix: update rdme-openapi.yml to correct Python + poetry version by @sarahwooders in #1446
• feat: Migrating CLI to run on MemGPT Client for memgpt [list/add/delete] (#1428) by @sarahwooders in #1449
• fix: update Dockerfile to Python 3.12 by @sarahwooders in #1456
• fix: debug logs in server (#1452) by @sarahwooders in #1457
• feat: add tools from the Python client by @sarahwooders in #1463
• fix: simple_summary_wrapper function_call KeyError by @djkazic in #1265
• fix: add ensure_ascii to missing json.dumps calls by @cpacker in #1466
• feat: add more tool calling support to LocalClient by @sarahwooders in #1465
• fix: fix ugly dev tool print in cli by @cpacker in #1469
• fix: patch /pop, /retry, and /rethink by @cpacker in #1471
• fix: check tool call type by @sarahwooders in #1451
• fix: drop print from #1465 by @cpacker in #1472
• feat: dev portal fixes for server changes by @sarahwooders in #1474
• fix: more server patches for dev portal by @sarahwooders in #1475
• feat: add token streaming to the MemGPT API by @cpacker in #1280
• feat: include usage statistics in message response by @sarahwooders in #1482

New Contributors

• @Anush008 made their first contribution in #1023
• @ajanitshimanga made their first contribution in #1441
• @djkazic made their first contribution in #1265

Full Changelog: 0.3.17...0.3.18