plan-parallel-dev

# Parallel Development Planning

Create implementation plans to maximize parallelization of feature development with multiple developers.
Also supports on-demand parallel tasks (bug fixes, feature additions) for completed projects.

## Usage Modes

This skill has two modes:

### Mode A: Initial Parallel Development (Planning Mode)

Used immediately after project initialization (right after `uv init`, `create-react-app`, etc.) when developing multiple features in parallel.

**Trigger Phrases**:

- "Create a parallel development plan"
- "I want to develop with multiple people simultaneously"
- "Divide work with worktree"
- "Maximize development parallelization"

**Workflow**: 9-step workflow (described below) to create a plan and start multiple tasks simultaneously.

### Mode B: Maintenance Parallel Development (Quick Task Mode)

Used for bug fixes and feature additions to projects with existing implementations. Start work immediately without a plan document.

**Trigger Phrases**:

- "Fix XX in parallel"
- "Handle XX in parallel"
- "Do YY with worktree"
- "Add parallel task: XX"
- "Do this with worktree: XX"

**Workflow**: See "Quick Task Workflow" section for details.

### Mode Selection Guide

| Situation                                       | Recommended Mode                           |
| ----------------------------------------------- | ------------------------------------------ |
| Right after project initialization, parallel features | A                                          |
| Single bug fix to existing project              | B (single task)                            |
| Medium-scale feature addition to existing project | B (multiple tasks + merge coordinator)     |

---

## Workflow (Mode A: Initial Parallel Development)

```
1. Understand Requirements
   └─→ Collect list of features to develop
   └─→ Confirm tech stack (BE/FE/Infrastructure, etc.)

2. Task Decomposition
   └─→ Split each feature into independent tasks
   └─→ Granularity: whichever is sm