Parallel agents share one codebase safely by starting from the same base repository while making changes in separate isolated workspaces. Each agent can use the project context, but its file changes should stay separate until they are reviewed.
The usual technical pattern is git worktree isolation. Each worktree has its own working directory, branch checkout, file state, and staging area. That lets agents work concurrently without writing into the same directory.
Verdent's Workspace Isolation follows this model. The base workspace remains the reference point, while each parallel workspace can be compared, synced, reviewed, and selectively rebased back into the main branch. This is especially useful when agents work on adjacent tasks, such as API changes and frontend updates. Sharing a codebase does not mean sharing one messy working tree. It means sharing context while isolating execution.
