gws-gmail is the Gmail agent skill in Google Workspace's gws CLI repository: it lets an agent send, read, reply to, forward and triage Gmail messages through the gws command line.
Google Workspace agent skills
Google Workspace publishes 1 agent skill listed here, from googleworkspace/cli (31,231 GitHub stars, last push September 24, 2026). Published from Google Workspace's GitHub account, with 31,223 stars on 2026-10-01. Its README says it is not an officially supported Google product.