mubit-adk 0.5.3

Google ADK BaseMemoryService adapter backed by MuBit memory engine

mubit-adk

Google ADK BaseMemoryService backed by MuBit.

This adapter now uses the canonical Python SDK transport internally instead of raw httpx, while preserving the ADK memory-service contract and adding MuBit-specific helpers for checkpointing, observability, and multi-agent coordination.

Install

pip install mubit-adk[adk]

Basic usage

from google.adk.agents import Agent
from google.adk.tools.preload_memory_tool import PreloadMemoryTool

from mubit_adk import (
    MubitMemoryService,
    make_bigquery_tool_callback,
    make_session_memory_callback,
)

memory = MubitMemoryService(
    endpoint="http://127.0.0.1:3000",
    api_key="mbt_...",
)

agent = Agent(
    name="bigquery_agent",
    description="Read-only BigQuery agent with MuBit memory.",
    model="gemini-2.0-flash",
    instruction="Use BigQuery tools and prior MuBit lessons to answer safely.",
    tools=[
        PreloadMemoryTool(),  # ADK calls memory.search_memory() before each turn.
        bigquery_toolset,     # Your ADK BigQueryToolset.
    ],
    after_agent_callback=make_session_memory_callback(memory),
    after_tool_callback=make_bigquery_tool_callback(memory),
)

For Vertex AI Agent Engine, pass the same memory service through AdkApp:

from vertexai.agent_engines import AdkApp

adk_app = AdkApp(
    agent=agent,
    memory_service_builder=lambda: memory,
    enable_tracing=True,
)

ADK to MuBit mapping

ADK concept	MuBit mapping
app_name	agent_id
user_id	user_id
session.id	isolated raw session run_id
adk:<app_name>:<user_id>:memory	durable app/user lesson run_id
session/event ingest	control ingest items with safe tool summaries
PreloadMemoryTool()	calls search_memory() for prompt injection
search_memory()	control query over the durable app/user memory run

MuBit extension methods

Existing MAS helpers:

• checkpoint()
• record_outcome()
• record_step_outcome()
• surface_strategies()

Current observability and coordination helpers:

• get_context()
• memory_health()
• diagnose()
• archive()
• dereference()
• register_agent()
• list_agents()
• handoff()
• feedback()
• make_session_memory_callback() for fail-open ADK session ingestion
• make_bigquery_tool_callback() for redacted BigQuery tool lessons and step outcomes

Config

Parameter	Default	Purpose
endpoint	http://127.0.0.1:3000	MuBit HTTP endpoint
api_key	""	MuBit API key

For tests or advanced embedding, you can inject mubit_client directly.

Development

PYTHONPATH=sdk/python/mubit-sdk/src:integrations/python/mubit_adk:integrations/python/mubit_integration_base \
python3 -m unittest integrations.python.mubit_adk.tests.test_memory_service integrations.python.mubit_adk.tests.test_mubit_client -v

License

Apache-2.0