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adk_ex

0.2.0
1.2.0 1.1.0 1.0.0 0.2.1 0.2.0

Elixir port of Google's Agent Development Kit (ADK) — agent orchestration, sessions, tools, LLM abstraction, plugins, and telemetry. Transport-agnostic.

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CHANGELOG.md 

# Changelog



All notable changes to this project will be documented in this file.



The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),

and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).



## [0.2.0] - 2026-04-11



### Added



- Phase 5: Plugin system with 12 callback hooks (Runner/Agent/Model/Tool level)

- Plugin.Manager for chaining plugins with short-circuit semantics

- Toolset behaviour for dynamic tool providers

- Pluggable session backends via `session_module` on Runner

- OpenTelemetry included in all environments (previously dev/test only)



## [0.1.0] - 2026-03-15



### Added



- Phase 1: Core types (Content, Part, FunctionCall, FunctionResponse), Event system, Session management with prefix-scoped state, Agent behaviour and tree utilities

- Phase 2: Runner with session lifecycle, Flow state machine (Stream.resource/3), Tool system (FunctionTool, Tool.Context), LLM abstraction with Gemini and Claude providers, Model Registry

- Phase 3: Orchestration agents (LoopAgent, SequentialAgent, ParallelAgent), Agent transfer via TransferToAgent tool, Branch isolation for parallel execution

- Phase 4: Memory service with word-based search, Artifact service with versioned storage, Dual telemetry (OpenTelemetry spans + Elixir :telemetry events)