Build in Parallel

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What is the task system?

A task is a unit of work that Agent can plan and execute. Each task runs in its own thread — a separate conversation where Agent works independently. You can follow along, give feedback, or let it run in the background. The task system is how Agent breaks work into manageable chunks. When you describe what you want to build, Agent splits your request into discrete tasks and organizes them on a board with columns: Drafts, Active, Ready, and Done. Each task moves from left to right as it progresses, so you can see at a glance what’s planned, what Agent is working on, what’s ready for your review, and what’s finished. Multiple tasks can run at the same time, so you’re not waiting for one to finish before the next one starts. When a task is ready, you review the changes and apply them back to your main version — or dismiss them if they’re not what you wanted.

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How parallel tasks work

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Task states

Every task goes through a series of stages: from an idea to part of your app. Each stage has its own icon so you can tell what’s happening at a glance.

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The task board

All your tasks live on a board organized into columns. Here’s how the board looks as tasks move through each stage.

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Drafts and Active

When you describe what you want to build, Agent creates draft tasks — each with a title, description, and a step-by-step plan. You can review the plan, ask Agent to adjust it, or accept it as-is. Once you accept, tasks move to the Active column and Agent starts building them. Each task runs in its own isolated copy of your project, so nothing changes in your main version until you say so. Some tasks depend on others — for example, a task that builds a dashboard needs the database to be set up first. These tasks wait as queued until their dependencies finish. Tasks also queue if you’ve reached your plan’s limit for parallel tasks.

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Ready and Done

When a task finishes building, it moves to Ready. This means the work is complete, but nothing has changed in your main version yet — you’re in control. You can apply changes in two ways:

• From the thread — Open the task’s thread and you’ll see a review prompt like the one below. Press Apply changes to main version to bring the work into your project, or Dismiss to discard it.

• From the board — Click the three-dot menu on any Ready task card to see your options, then press Apply changes

Once applied, the task card moves to the Done column. Agent handles conflicts automatically when you apply changes from multiple tasks. If something doesn’t look right, you can always ask Agent to fix it.

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What you can build

The task system works for any project. Here are a few patterns where it shines:

• Ship faster with parallel tasks — Build authentication, a dashboard, and an API layer simultaneously instead of sequentially
• Plan complex projects — Break a large feature into well-scoped tasks with dependencies, then execute with confidence
• Explore design directions in parallel — Try multiple UI approaches at the same time and pick the best result

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Frequently asked questions

Do I need to change how I build?

No. The main thread works exactly the same. Agent automatically creates tasks behind the scenes when it helps. You can also use Plan mode to see and manage tasks explicitly.

Why are my tasks running one at a time?

Parallel execution supports up to 10 concurrent tasks on Pro and up to 2 on Core (for a limited time). If you’re hitting the limit, additional tasks queue and run as slots free up.

How does Agent handle conflicts when applying background tasks?

Agent uses AI-assisted conflict resolution. It understands what each task was trying to accomplish and applies the changes intelligently. If something looks off, you can ask Agent to fix it in the thread.

Can tasks depend on each other?

Yes. Agent automatically detects dependencies — for example, a task that builds a dashboard depends on the task that creates the database schema. Dependent tasks wait until their prerequisites complete.

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Availability

* Available on Core for a limited time.