Parallel Markers

Tasks marked [P] can execute in parallel when they touch different files with no dependencies between them.

How It Works

- [ ] [8] [P] [US1] Create Task model in src/models/task.ts
- [ ] [9] [P] [US1] Create GET /api/tasks in src/routes/tasks.ts
- [ ] [10] [P] [US1] Write test for Task model in tests/models/task.test.ts

These three tasks touch different files and have no data dependencies. They can run at the same time.

- [ ] [11] [US1] Create TaskList component (depends on API route)
- [ ] [12] [US1] Write E2E test (depends on component + API)

These tasks depend on earlier work. They are NOT marked [P] and must run sequentially after tasks 8-10 complete.

Rules

1. [P] tasks within the same phase can run simultaneously
2. [P] tasks across different phases CANNOT — phases are sequential
3. A non-[P] task means “wait for all prior tasks in this phase to finish”
4. If unsure, do not mark it [P] — sequential is always safe

Multi-Agent Workflows

If you have multiple AI agents or developers, assign parallel tasks to different workers:

• Agent A: Task [8] — model
• Agent B: Task [9] — route
• Agent C: Task [10] — test

All three work simultaneously, then converge for task [11] which depends on their output.