Google Workspace CLI (gws)
A command line published under the Google Workspace GitHub organisation, for Gmail, Drive, Calendar, Docs, Sheets and Chat, which means Claude Code can reach your whole Workspace through plain bash instead of an MCP server. The interesting bit is that its command surface is not hardcoded: it reads Google's Discovery Service at startup and rebuilds itself, so a new API method is usable the day Google ships it. Ships with roughly a hundred ready-made automation skills and answers in structured JSON. Its repository states that it is not an officially supported Google product: it lives under Google Workspace on GitHub, without the support commitment of a product.
Strengths
- Published under the Google Workspace GitHub organisation, close to the APIs it exposes
- Command surface built at startup from the Discovery Service, so it never lags behind new API methods
- Burns no context until invoked, unlike an always-loaded MCP server
Limitations
- Goes through bash, so it is less legible to the agent than a typed MCP tool and errors surface as raw text
- Needs a one-off Google OAuth setup, the step that stops non-technical profiles