Google open-sources Data Agent Kit linking coding agents to data cloud services

On November 5, 2026, InfoQ reported that Google has officially released Data Agent Kit as open source, bringing an end to a preview period that ran throughout the summer. It is an MCP-based toolkit that lets coding agents connect to more than fifteen Google Data Cloud services, including BigQuery, Bigtable and Apache Spark. It sits between the coding agent and Google's data cloud services and consists of two parts: a skill collection carrying best-practice guidance, and an MCP server exposing live metadata and tools.

The plugin repository contains 37 skills, all released under the Apache 2.0 license, and every skill carries Google as its source in its metadata. According to the company, Data Agent Kit runs in Antigravity, Claude Code, Codex, Cursor and editors compatible with VS Code, and is preinstalled in Cloud Shell and Cloud Workstations. It is free and open source, and can also be installed into coding agents that are not Google's own. Google product manager Arun Nair and developer advocate Jeff Nelson wrote in the launch post that the toolkit fills a gap in agents' native capabilities: an agent may write decent SQL, yet it does not know which tables exist, how they are partitioned, which ones the team trusts, or why a job failed overnight.

For guardrails, the 37 skills include guided protections that block destructive actions, while hard isolation relies on IAM deny policies. With the stable release, Google has also added support for new backends such as BigQuery Graph, Bigtable and the managed Apache Spark service.