Manus Ships Plan Mode so AI Agents Stop Building the Wrong Thing

Manus just shipped Plan Mode, a feature that inserts a human-review checkpoint between your prompt and execution. Instead of immediately spinning up a build, Manus pauses, runs a feasibility analysis, and surfaces a structured document outlining goals, steps, and constraints. You read it, edit it, and only then does anything get built.

The wall every AI agent user hits

Anyone who has used an AI agent for something non-trivial knows the pattern: you describe what you want, the agent works for 20 minutes, and when it finishes you realize it picked the wrong architecture, missed a key integration, or misread your intent entirely. The fix costs more time than the original build.

The root cause is alignment, not capability. Plan Mode introduces a review step before execution begins. You catch the mistake before any code is written, before any credits are spent going in the wrong direction.

How it works

Plan Mode stays out of your way until you call it. On web, type / and select Plan. On mobile, tap + and choose Plan Mode. Once active, Manus evaluates your request, asks clarifying questions if context is missing, and generates a Markdown document covering goals, steps, and constraints.

You can edit the document directly or ask Manus to revise it for you. When you hit Confirm, that plan becomes the source of truth and Manus follows it precisely. Manus will not start building until you confirm or dismiss the plan, which prevents unintended changes to your website, slides, or video.

Mid-task, not just at the start

Plan Mode works at any point during a project. If Manus is already building and you want to pause and scope the next phase, activate Plan Mode mid-task. Finish phase one, plan phase two before it begins, repeat. The feature fits naturally into iterative workflows rather than forcing you to front-load every decision upfront.

Where it earns its keep

Plan Mode does its best work on development tasks with real complexity. Describe what you want to build and the planning process surfaces what you haven't considered: edge cases buried in your requirements, business logic conflicts, and unstated assumptions. Manus's blog post walks through four concrete examples:

• Landing page: "Build a landing page for my SaaS product" expands into target audience, hero copy angle, component stack, and integrations like Stripe and analytics. Edit one line to prioritize developer signups, confirm, and Manus builds the right site on the first pass.
• App with a database: "Build a task manager with user accounts and a database" produces a plan mapping the data schema, auth flow, and API routes. Spot a flat table where you need relational joins, fix the schema in plain text, and the app launches with the right architecture.
• Live site edits: Plan Mode shows exactly where a new section goes and which components it touches before anything ships.
• Deployments: The plan lists hosting config, instrumented events, and tagged pages. Add a missing conversion event before the deploy goes out and tracking is complete from day one.

Prompting pressure drops

A single sentence is enough to kick off a full website build. You no longer need to front-load every detail into your prompt because the plan stage fills in the gaps. For anyone who has spent time crafting elaborate prompts just to avoid a bad first output, that cognitive load shifts to the review step where it's far easier to catch and correct.

Plan Mode sits alongside a broader set of iteration tools in Manus. If recent changes break something, you can roll back to a previous version. If you want to experiment without risk, copy your site and test on the duplicate. During planning, branches let you explore multiple requirement paths before committing to one.

Availability and pricing

Plan Mode is live for all Manus users via / on web or the + menu on mobile. Pricing runs from free at $0/month to $200/month on the Pro tier, with Team plans starting at $20 per seat per month. The free plan includes 300 daily refresh credits and one concurrent task. Annual billing saves 17% across every paid plan, and the $40 Pro tier includes a 7-day free trial.

Plan Mode carries no extra cost and is available on all tiers. Catching a misalignment in a plan takes minutes; catching it in a deployed site can take hours. The feature pays for itself in credits alone.