安装 Google Cloud AlloyDB 插件

安装 alloydb@data-agent-kit，配置 ADC 凭证和 ALLOYDB_POSTGRES_* 实例信息，通过本地 alloydb-postgres MCP 连接数据库。

gcloud auth application-default login
export ALLOYDB_POSTGRES_PROJECT=YOUR_ALLOYDB_POSTGRES_PROJECT
export ALLOYDB_POSTGRES_REGION=YOUR_ALLOYDB_POSTGRES_REGION
export ALLOYDB_POSTGRES_CLUSTER=YOUR_ALLOYDB_POSTGRES_CLUSTER
export ALLOYDB_POSTGRES_INSTANCE=YOUR_ALLOYDB_POSTGRES_INSTANCE
export ALLOYDB_POSTGRES_DATABASE=YOUR_ALLOYDB_POSTGRES_DATABASE

codex plugin marketplace add GoogleCloudPlatform/data-agent-kit
codex plugin add alloydb@data-agent-kit
codex mcp list

# 可选：
# export ALLOYDB_POSTGRES_IP_TYPE=PRIVATE
# codex plugin marketplace upgrade data-agent-kit

# 不要：
# /plugin install alloydb@claude-plugins-official
# gemini extensions install https://github.com/gemini-cli-extensions/alloydb
# plugin add alloydb@claude-plugins-official
# plugin add alloydb-omni@data-agent-kit
# plugin add dak@data-agent-kit-starter-pack-marketplace
# plugin add looker@data-agent-kit
# codex mcp login alloydb-postgres
# command = "./PATH/TO/toolbox"