google-adk

Google Agent Development Kit (ADK) is a leading agent sdk in the 2026 AI agent engineering landscape (20.4k★).

When to use this skill

• Code-first Python framework for building, evaluating, and deploying agents (ADK 2.0)
• LlmAgent + workflow agents (Sequential, Parallel, Loop) for deterministic orchestration
• Multi-agent hierarchies with delegation and transfer
• Rich tool ecosystem: built-in tools, OpenAPI, MCP, third-party libraries
• adk web dev UI, adk run CLI, adk eval built-in evaluation
• Deploy to Vertex AI Agent Engine, Cloud Run, GKE; A2A integration for cross-agent calls
• Ecosystem overlap: agents-cli (this repo) covers the Google Cloud deploy/eval CLI toolchain around agents — google-adk covers the framework/programming model itself; pairs like SDK vs CLI

Installation

pip install google-adk