google-agents-cli-publish

Gemini Enterprise Registration

Requires: A deployed agent. For Agent Runtime, deployment_metadata.json (created by agents-cli deploy) enables auto-detection. For Cloud Run or GKE, provide the agent card URL and flags directly.

Prerequisites

1. Agent must be deployed — the agent must be running and reachable
2. Gemini Enterprise app must exist — Create one in Google Cloud Console → Gemini Enterprise → Apps before registering
3. deployment_metadata.json (Agent Runtime only) — Created automatically by agents-cli deploy; contains the agent runtime ID, deployment target, and A2A flag

Required Permissions for A2A on Cloud Run

• roles/run.servicesInvoker granted to the Discovery Engine service account (service-<PROJECT_NUMBER>@gcp-sa-discoveryengine.iam.gserviceaccount.com) on the Cloud Run service.

Registration Modes

ADK Registration (default)

For standard ADK agents deployed to Agent Runtime. The agent is registered directly via its reasoning engine resource name.

agents-cli publish gemini-enterprise \
  --agent-runtime-id projects/123456/locations/us-east1/reasoningEngines/789 \
  --gemini-enterprise-app-id projects/123456/locations/global/collections/default_collection/engines/my-app \
  --display-name "My Agent" \
  --description "Handles customer queries" \
  --tool-description "Answers questions about products"

A2A Registration

For agents using the Agent-to-Agent protocol. Requires an agent card URL — the command fetches the card and registers it.

# A2A on Cloud Run
agents-cli publish gemini-enterprise \
  --registration-type a2a \
  --agent-card-url https://my-service-abc123.us-east1.run.app/a2a/app/.well-known/agent-card.json \
  --gemini-enterprise-app-id projects/123456/locations/global/collections/default_collection/engines/my-app \
  --display-name "My A2A Agent"

# A2A on Agent Runtime (card URL is auto-constructed from metadata)
agents-cli publish gemini-enterprise \
  --registration-type a2a \
  --gemini-enterprise-app-id projects/123456/locations/global/collections/default_collection/engines/my-app

Programmatic Mode (CI/CD)

The command is non-interactive by default — pass all required values via flags or environment variables. This makes it safe for CI/CD pipelines.

Via flags

agents-cli publish gemini-enterprise \
  --agent-runtime-id "$AGENT_RUNTIME_ID" \
  --gemini-enterprise-app-id "$GEMINI_ENTERPRISE_APP_ID" \
  --display-name "Production Agent" \
  --registration-type adk

Via environment variables

Every flag has an env var alternative:

export AGENT_RUNTIME_ID="projects/123456/locations/us-east1/reasoningEngines/789"
export GEMINI_ENTERPRISE_APP_ID="projects/123456/locations/global/collections/default_collection/engines/my-app"
export GEMINI_DISPLAY_NAME="Production Agent"
export GEMINI_DESCRIPTION="Handles customer queries"

agents-cli publish gemini-enterprise

Interactive Mode (--interactive)

Pass --interactive (or -i) to be guided through any missing values with interactive prompts. The command will list available Gemini Enterprise apps, offer to auto-detect the agent runtime ID from metadata, and prompt for display name and description.

agents-cli publish gemini-enterprise --interactive

Complete Flag Reference

Auto-Detection from Metadata

When deployment_metadata.json exists, the command automatically:

• Reads the agent runtime ID (remote_agent_runtime_id)
• Detects the registration type (is_a2a flag)
• Constructs the agent card URL for A2A agents on Agent Runtime
• Determines the deployment target for authentication

This means that for the simplest case (ADK agent on Agent Runtime), you only need to provide the Gemini Enterprise app ID:

agents-cli publish gemini-enterprise \
  --gemini-enterprise-app-id projects/123456/locations/global/collections/default_collection/engines/my-app

SDK Compatibility

Agent Runtime deployments may encounter "Session not found" errors with google-cloud-aiplatform versions <= 1.128.0. In interactive mode (--interactive), the command checks the SDK version from uv.lock and offers to upgrade. In programmatic mode, ensure your SDK is up to date before registering.

Troubleshooting

Related Skills

• /google-agents-cli-deploy — Deployment targets, CI/CD pipelines, and production workflows
• /google-agents-cli-workflow — Development workflow, coding guidelines, and operational rules
• /google-agents-cli-scaffold — Project creation and enhancement with agents-cli scaffold create / scaffold enhance