> ## Documentation Index
> Fetch the complete documentation index at: https://phaseo.app/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Java Agent SDK (work in progress)

> Review the work-in-progress Java Agent SDK runtime.

<Note type="warning">
  The Java Client SDK and Agent SDK are works in progress and are not yet available from Maven Central.
</Note>

The Java Agent SDK is a source-only runtime layered on the Java Client SDK. It provides the same core contract as the TypeScript Agent SDK:

* bounded multi-step tool loops
* concurrent tools with per-tool timeouts
* model retry and backoff
* human-review pauses and resumable run records
* lifecycle events and Phaseo Devtools JSONL capture
* a gateway adapter backed by the Java Client SDK

Runs stay inside your application. Phaseo handles model requests; your service owns persistence, queues, authorization, and review UI.

## Next

* [Installation](./agent-sdk-installation)
* [Usage](./agent-sdk)