sondera-harness-adk 0.1.0.dev1126

Sondera Harness governance plugin for Google Agent Development Kit (ADK) 2.x agents.

sondera-harness-adk

Sondera Harness governance plugin for Google ADK 2.x agents. Wraps every ADK callback point (user message, model, tool, run lifecycle) with policy adjudication against the Sondera Platform.

The package's public surface is deliberately narrow: only SonderaHarnessPlugin is exported from the top-level package.

Installation

uv add sondera-harness-adk

Quick Start

from google.adk import Agent
from google.adk.runners import Runner

from sondera_harness_adk import SonderaHarnessPlugin
from sondera_harness_adk.harness import SonderaRemoteHarness

# Endpoint/token resolve from SONDERA_HARNESS_ENDPOINT / SONDERA_API_TOKEN
# (or ~/.sondera/env) when not passed explicitly.
harness = SonderaRemoteHarness()
plugin = SonderaHarnessPlugin(harness=harness)

agent = Agent(name="my-agent", model="gemini-2.5-flash", ...)
runner = Runner(agent=agent, app_name="my-app", plugins=[plugin])

SonderaHarnessPlugin accepts any sondera_harness_adk.abc.Harness implementation, so custom harnesses (e.g. a local policy engine) can be substituted for SonderaRemoteHarness.

License

MIT — see LICENSE.