Parallel Worktree Session

Overview

One branch. One worktree. One agent. This is the core constraint that makes parallel development work without file conflicts, port collisions, or context pollution between features.

Core principle: Spin up isolated workspaces first, coordinate after.

Phase 1 — Plan: Feature Decomposition

Before creating anything, define what you're parallelizing:

1. List features — name each by what it does, not how
2. Verify independence — features that modify the same files are NOT good candidates
3. Choose execution mode (see decision table below)
4. Build a tracking table: