Try this workflow
Put one Claude task in a small repository and set the Claude slot limit to one. Queue two more bounded requests. Watch which request owns the terminal, which requests wait, and how the first completion changes the queue.
Understand the boundary
Three terminals can compete for the same allowance, files and your review time. Adding a slot helps only when the requests are independent and you can still inspect each result.
A concrete example
Ask each task to own a different output. For a settings screen, finish the storage change before the UI that relies on it. A documentation audit in a separate repository can run alongside either.
Review the result
Record time from queueing to Ready for review and time from completion to inspection. If the second number grows, reduce concurrency before buying more provider capacity.
Explore Claude Code orchestration across your projects, VibeiDE setup in 3 minutes.