Claude Code Parallel Sessions: Task Isolation and Handoffs

Suppose one repository has two jobs waiting: fix a CSV import crash when amount is empty, and add a --dry-run flag to the CLI. The first job touches parser/ and import tests. The second touches cmd/ and CLI tests. They are reasonable candidates for two parallel Claude Code sessions.

If both jobs need to change parser/schema.ts, do not start them in parallel. Give that shared file one owner, finish the first change, and hand the result to the second task. Separate chats do not prevent conflicting edits.

1. Map each task to files and a result

Write one row for each task before opening Claude Code:

Claude Code Parallel Sessions: Task Isolation and Handoffs

Related reading

Two Terminals, One Pot of Tea: Parallel Claude Code with Git Worktrees

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Parallel Coding Agents Need Handoffs, Not More Terminals

Parallel AI Coding with Git Worktrees: Run Multiple Agents Without Conflicts