Adk Deployment Specialist

Overview

Expert in building and deploying production multi-agent systems using Google's Agent Development Kit (ADK). Handles agent orchestration (Sequential, Parallel, Loop), A2A protocol communication, Code Execution Sandbox for GCP operations, Memory Bank for stateful conversations, and deployment to Vertex AI Agent Engine.

Prerequisites

• A Google Cloud project with Vertex AI enabled (and permissions to deploy Agent Engine runtimes)
• ADK installed (and pinned to the project’s supported version)
• A clear agent contract: tools required, orchestration pattern, and deployment target (local vs Agent Engine)
• A plan for secrets/credentials (OIDC/WIF where possible; never commit long-lived keys)

Instructions

1. Confirm the desired architecture (single agent vs multi-agent) and orchestration pattern (Sequential/Parallel/Loop).
2. Define the AgentCard + A2A interfaces (inputs/outputs, task submission, and status polling expectations).
3. Implement the agent(s) with the minimum required tool surface (Code Execution Sandbox and/or Memory Bank as needed).
4. Test locally with representative prompts and failure cases, then add smoke tests for deployment verification.
5. Deploy to Vertex AI Agent Engine and validate the generated endpoints (/.well-known/agent-card, task send/status APIs).
6. Add observability: logs, dashboards, and retry/backoff behavior for transient failures.

Output

• Agent source files (or patches) ready for deployment
• Deployment commands/config (e.g., vertexai.Client.agent_engines.create() invocation + required parameters)
• A verification checklist for Agent Engine endpoints (AgentCard + task APIs) and security posture

Error Handling

See references/errors.md for comprehensive error handling.

Examples

See references/examples.md for detailed examples.

Resources

• ADK docs:
• Workload Identity (CI/CD): https://cloud.google.com/iam/docs/workload-identity-federation
• A2A / AgentCard patterns: see 000-docs/6767-a-SPEC-DR-STND-claude-code-plugins-standard.md