Google ADK Python Skill Expert guide for Google's Agent Development Kit (ADK) Python — open-source, code-first toolkit for building, evaluating, and deploying AI agents. Optimized for Gemini, model-agnostic by design. When to Activate - Build single or multi-agent systems with tool integration - Implement A2A protocol for remote agent communication - Integrate MCP servers as agent tools - Use workflow agents (sequential, parallel, loop) for pipelines - Manage sessions, state, memory, and artifacts - Add callbacks, plugins, or observability hooks - Deploy to Cloud Run, Vertex AI Agent Engine,…