Grok Build starts remembering how your team runs tests

xAI announced on September 16 that Grok Build, its terminal coding agent, now has memory. Team conventions, technical decisions and durable project facts carry over from one session to the next, and the feature is available now, Testingcatalog reports. Until now, each session started with no knowledge of the ones before it, which is how Grok Build had worked since xAI launched it in May as an early beta.

Capture happens after each completed turn. Grok reviews the exchange in the background and writes down whatever looks likely to stay useful, without interrupting the session you’re in. In xAI’s example, Grok runs cargo test and the run fails because the PostgreSQL test database isn’t up. The user says to use just test, which starts the database first. Grok follows that convention from then on, and the command is saved in a testing note.

The notes are Markdown files, one topic per subject, kept in two scopes. A workspace scope holds everything about the current project, and a global scope holds preferences that should apply across all your projects. The /dream command merges new observations into the matching topic files, and xAI says the same merge also runs in the background on a schedule.

Before related work starts, Grok reads the relevant topics and applies them, even when nobody mentions them in the new conversation. Instructions in the current conversation still take priority. Memory is meant to hold coding and review practices, the reasoning behind decisions, where subsystems live, and commands such as how to run tests. Task state, tentative conclusions, secrets and anything already in the repository or its docs are left out.

Capture begins after the first completed turn, but the saved context only takes effect once you run /new or start a fresh grok session. So the session that taught Grok about just test doesn’t benefit from the note.

To see what has been saved, open /memory. It’s a read-only browser that groups files by scope, with filtering, file previews and controls to copy a note’s path, delete a note, or switch it on or off. Editing a note means going to the Markdown file itself. Grok Build has been open to SuperGrok and X Premium+ subscribers since access widened in August, and new users install it with curl -fsSL https://x.ai/cli/install.sh | bash.