On August 7, 2026, GitHub published a Copilot update that looked like a bag of small conveniences: a /worktree command for isolated code experiments, /rewind for restoring a session and its files, /side in the Copilot app, and /btw in VS Code for asking a parallel question without interrupting the main task.
I think those features point to one bigger problem in AI-assisted coding:
Exploration contaminates the real project surprisingly fast.
You ask an innocent question about a different database. The agent edits three configuration files to “show you.” You ask whether the screen would be cleaner with another navigation pattern. The agent starts refactoring the current layout. Ten minutes later, your working app has become a museum of half-decisions.
The beginner mistake is not exploring. Exploration is useful. The mistake is exploring in the same lane where your last known-good version lives.
